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Walker
Walker Products AftermarketWalker 350-34316 Oxygen Sensor
| Brand | Walker 350-34316 |
|---|---|
| Position | Downstream |
| Connector Gender | Male |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 16.85 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 20 |
| Wire Quantity | 4 |
| Wiring Harness Length | 13.31 |
| Product line | Walker Products Aftermarket |
| Fits | Ford, Lincoln, Mazda, and Mercury · 533 vehicles |
OE replacement. Engineered for specific application fit and ECU feedback.
Heated sensor. Helps maintain accurate diagnostic system response.
Threaded mount. Designed for secure installation with a male connector.
$38.36Free shipping
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Walker Oxygen Sensor for OE-Style Engine Feedback
Walker Products Aftermarket part number 350-34316 is a heated oxygen sensor built for specific vehicle applications and ECU feedback requirements. It is engineered as an OE-style replacement for select Ford, Lincoln, Mazda, and Mercury models, including Ford Fiesta, Ford Edge, and Ford F-250 Super Duty applications.
Key Features
- Heated oxygen sensor with specific-fit application coverage
- 4-wire design with 20-gauge wiring and 13.31-inch harness length
- Threaded mounting with 18.0 mm thread diameter
- Radiused polygon male connector for application-specific fitment
- Overall length: 16.85 inches
- Built to provide the diagnostic feedback expected by the ECU
Walker Products Aftermarket Line
Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors developed for direct replacement use. The line is built around application-specific fitment, connector style, and sensor position so the replacement part matches the vehicle’s original sensor location and signal requirements.
Detailed Description
Walker 350-34316 is a heated oxygen sensor designed for specific upstream and downstream positions across a wide range of vehicles. It supports closed-loop fuel control by sending exhaust oxygen data to the engine computer, helping the ECU adjust air-fuel delivery based on operating conditions. This part number is listed for multiple Ford Fiesta configurations, including upstream B1S1 and downstream B1S2 positions, along with select Ford Edge, Fusion, Taurus, E-150, E-250, E-350, F-250 Super Duty, F-350 Super Duty, Lincoln MKX, Lincoln MKZ, Mazda CX-9, Mercury Milan, Mercury Mariner, Mercury Sable, and related applications.
This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
What It Helps Address
- Check engine light related to oxygen sensor performance
- Poor engine operation caused by incorrect exhaust feedback
- Increased fuel consumption from inaccurate air-fuel control
- Higher exhaust emissions from a failing sensor
- Fault codes stored in the ECU for sensor-related issues
Installation Notes and Tips
- Confirm the exact position before ordering: upstream, downstream, front, rear, left, or right.
- Verify connector shape, wire count, and harness length against the original sensor.
- Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before installation.
- Check for exhaust leaks or related engine issues that can affect sensor readings.
- Use the vehicle’s emissions configuration and engine setup to confirm the correct application, especially on Ford Fusion and Ford Taurus listings with emissions-specific notes.
Quality Assurance
Walker Products states that its engine management sensors are manufactured for application-specific fitment and diagnostic feedback requirements, and the company operates under ISO 9001/TS 16949 quality systems.
Fits 2015-2019 Ford Fiesta, upstream and downstream positions; 2007-2010 Ford Edge, upstream front and upstream rear; 2006-2010 Ford F-250 Super Duty, upstream left and upstream right; 2006-2010 Ford F-350 Super Duty, upstream left and upstream right; 2007-2010 Lincoln MKX, upstream front and upstream rear; 2007-2010 Mazda CX-9, upstream front and upstream rear; 2006-2009 Mercury Milan, upstream front and upstream rear; 2008-2009 Ford Taurus, upstream front and upstream rear; 2005-2008 Ford E-350 Super Duty, upstream left and upstream right.
This part fits 533 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Submodel | Drive Type | Transmission | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| 2019 | Ford | Fiesta | ST Line | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Sensor de 4 cables en el Múltiple del Escape; Upstream; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | ST Line | — | — | 1.6L | L4 | GAS | Downstream | With 5 wire sensor in manifold; B1S2; Con sensor de 5 cables despues del convertidor catalÃtico; Downstream; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | ST Line | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; B1S2; Con sensor de 4 cables antes del convertidor catalÃtico; Downstream; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Sensor de 4 cables en el Múltiple del Escape; Upstream; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; B1S2; Con sensor de 4 cables antes del convertidor catalÃtico; Downstream; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | With 5 wire sensor in manifold; B1S2; Con sensor de 5 cables despues del convertidor catalÃtico; Downstream; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Sensor de 4 cables en el Múltiple del Escape; Upstream; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; B1S2; Con sensor de 4 cables antes del convertidor catalÃtico; Downstream; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | With 5 wire sensor in manifold; B1S2; Con sensor de 5 cables despues del convertidor catalÃtico; Downstream; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | ST Line | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; Sensor de 4 cables en el Múltiple del Escape; Upstream; B1S1; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | ST Line | — | — | 1.6L | L4 | GAS | Downstream | 5-wire downstream oxygen sensor fits in manifold after catalytic converter.; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | ST Line | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; Con sensor de 4 cables antes del convertidor catalÃtico; Downstream; B1S2; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; Sensor de 4 cables en el Múltiple del Escape; Upstream; B1S1; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; Con sensor de 4 cables antes del convertidor catalÃtico; Downstream; B1S2; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | 5-wire downstream oxygen sensor fits in manifold after catalytic converter.; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; Sensor de 4 cables en el Múltiple del Escape; Upstream; B1S1; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; Con sensor de 4 cables antes del convertidor catalÃtico; Downstream; B1S2; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | 5-wire downstream oxygen sensor fits in manifold after catalytic converter.; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | ST Line | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Upstream; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | ST Line | — | — | 1.6L | L4 | GAS | Downstream | With 5 wire sensor in manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | ST Line | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Upstream; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | With 5 wire sensor in manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Upstream; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2019 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | With 5 wire sensor in manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Sensor de 4 cables en el Múltiple del Escape; Upstream; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | With 5 wire sensor in manifold; B1S2; Con sensor de 5 cables despues del convertidor catalÃtico; Downstream; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; B1S2; Con sensor de 4 cables antes del convertidor catalÃtico; Downstream; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Sensor de 4 cables en el Múltiple del Escape; Upstream; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; B1S2; Con sensor de 4 cables antes del convertidor catalÃtico; Downstream; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | With 5 wire sensor in manifold; B1S2; Con sensor de 5 cables despues del convertidor catalÃtico; Downstream; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Sensor de 4 cables en el Múltiple del Escape; Upstream; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | With 5 wire sensor in manifold; B1S2; Con sensor de 5 cables despues del convertidor catalÃtico; Downstream; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; B1S2; Con sensor de 4 cables antes del convertidor catalÃtico; Downstream; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; Sensor de 4 cables en el Múltiple del Escape; Upstream; B1S1; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | 5-wire downstream oxygen sensor fits in manifold after catalytic converter.; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; Con sensor de 4 cables antes del convertidor catalÃtico; Downstream; B1S2; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; Sensor de 4 cables en el Múltiple del Escape; Upstream; B1S1; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; Con sensor de 4 cables antes del convertidor catalÃtico; Downstream; B1S2; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | 5-wire downstream oxygen sensor fits in manifold after catalytic converter.; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; Sensor de 4 cables en el Múltiple del Escape; Upstream; B1S1; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | 5-wire downstream oxygen sensor fits in manifold after catalytic converter.; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; Con sensor de 4 cables antes del convertidor catalÃtico; Downstream; B1S2; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Upstream; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | With 5 wire sensor in manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Upstream; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | With 5 wire sensor in manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Upstream; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | With 5 wire sensor in manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2018 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Sensor de 4 cables en el Múltiple del Escape; Upstream; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | With 5 wire sensor in manifold; B1S2; Con sensor de 5 cables despues del convertidor catalÃtico; Downstream; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; B1S2; Con sensor de 4 cables antes del convertidor catalÃtico; Downstream; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Sensor de 4 cables en el Múltiple del Escape; Upstream; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | With 5 wire sensor in manifold; B1S2; Con sensor de 5 cables despues del convertidor catalÃtico; Downstream; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | In Manifold, 4 Wire Sensor; B1S2; Con sensor de 4 cables antes del convertidor catalÃtico; Downstream; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Sensor de 4 cables en el Múltiple del Escape; Upstream; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; B1S2; Con sensor de 4 cables antes del convertidor catalÃtico; Downstream; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | With 5 wire sensor in manifold; B1S2; Con sensor de 5 cables despues del convertidor catalÃtico; Downstream; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; Sensor de 4 cables en el Múltiple del Escape; Upstream; B1S1; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | 5-wire downstream oxygen sensor fits in manifold after catalytic converter.; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; Con sensor de 4 cables antes del convertidor catalÃtico; Downstream; B1S2; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; Sensor de 4 cables en el Múltiple del Escape; Upstream; B1S1; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | 5-wire downstream oxygen sensor fits in manifold after catalytic converter.; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | In Manifold, 4 Wire Sensor; Con sensor de 4 cables antes del convertidor catalÃtico; Downstream; B1S2; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; Sensor de 4 cables en el Múltiple del Escape; Upstream; B1S1; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; Con sensor de 4 cables antes del convertidor catalÃtico; Downstream; B1S2; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | 5-wire downstream oxygen sensor fits in manifold after catalytic converter.; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Upstream; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | With 5 wire sensor in manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Upstream; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | With 5 wire sensor in manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | In Manifold, 4 Wire Sensor; B1S2; Downstream; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Upstream; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | With 4 wire sensor in manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2017 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | With 5 wire sensor in manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Sensor de 4 cables en el Múltiple del Escape; Upstream; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | 4 Wire Sensor in Manifold; B1S2; Sensor de 4 cables en el Múltiple del Escape; Downstream; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | 5 Wire Sensor in Manifold; B1S2; Sensor de 5 cables en el Múltiple del Escape; Downstream; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Sensor de 4 cables en el Múltiple del Escape; Upstream; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | 5 Wire Sensor in Manifold; B1S2; Sensor de 5 cables en el Múltiple del Escape; Downstream; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | 4 Wire Sensor in Manifold; B1S2; Sensor de 4 cables en el Múltiple del Escape; Downstream; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Sensor de 4 cables en el Múltiple del Escape; Upstream; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | 5 Wire Sensor in Manifold; B1S2; Sensor de 5 cables en el Múltiple del Escape; Downstream; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | 4 Wire Sensor in Manifold; B1S2; Sensor de 4 cables en el Múltiple del Escape; Downstream; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; Sensor de 4 cables en el Múltiple del Escape; Upstream; B1S1; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | 5 Wire Sensor in Manifold; Sensor de 5 cables en el Múltiple del Escape; Downstream; B1S2; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | 4 Wire Sensor in Manifold; Sensor de 4 cables en el Múltiple del Escape; Downstream; B1S2; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; Sensor de 4 cables en el Múltiple del Escape; Upstream; B1S1; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | 4 Wire Sensor in Manifold; Sensor de 4 cables en el Múltiple del Escape; Downstream; B1S2; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | 5 Wire Sensor in Manifold; Sensor de 5 cables en el Múltiple del Escape; Downstream; B1S2; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; Sensor de 4 cables en el Múltiple del Escape; Upstream; B1S1; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | 4 Wire Sensor in Manifold; Sensor de 4 cables en el Múltiple del Escape; Downstream; B1S2; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | 5 Wire Sensor in Manifold; Sensor de 5 cables en el Múltiple del Escape; Downstream; B1S2; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Upstream; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | 4 Wire Sensor in Manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | 5 Wire Sensor in Manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Upstream; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | 5 Wire Sensor in Manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | 4 Wire Sensor in Manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Upstream; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | 5 Wire Sensor in Manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2016 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | 4 Wire Sensor in Manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Sensor de 4 cables en el Múltiple del Escape; Upstream; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | 4 Wire Sensor in Manifold; B1S2; Sensor de 4 cables en el Múltiple del Escape; Downstream; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | 5 Wire Sensor in Manifold; B1S2; Sensor de 5 cables en el Múltiple del Escape; Downstream; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Sensor de 4 cables en el Múltiple del Escape; Upstream; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | 5 Wire Sensor in Manifold; B1S2; Sensor de 5 cables en el Múltiple del Escape; Downstream; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | 4 Wire Sensor in Manifold; B1S2; Sensor de 4 cables en el Múltiple del Escape; Downstream; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Sensor de 4 cables en el Múltiple del Escape; Upstream; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | 5 Wire Sensor in Manifold; B1S2; Sensor de 5 cables en el Múltiple del Escape; Downstream; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | 4 Wire Sensor in Manifold; B1S2; Sensor de 4 cables en el Múltiple del Escape; Downstream; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; Sensor de 4 cables en el Múltiple del Escape; Upstream; B1S1; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | 4 Wire Sensor in Manifold; Sensor de 4 cables en el Múltiple del Escape; Downstream; B1S2; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | 5 Wire Sensor in Manifold; Sensor de 5 cables en el Múltiple del Escape; Downstream; B1S2; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; Sensor de 4 cables en el Múltiple del Escape; Upstream; B1S1; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | 5 Wire Sensor in Manifold; Sensor de 5 cables en el Múltiple del Escape; Downstream; B1S2; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | 4 Wire Sensor in Manifold; Sensor de 4 cables en el Múltiple del Escape; Downstream; B1S2; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; Sensor de 4 cables en el Múltiple del Escape; Upstream; B1S1; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | 5 Wire Sensor in Manifold; Sensor de 5 cables en el Múltiple del Escape; Downstream; B1S2; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | 4 Wire Sensor in Manifold; Sensor de 4 cables en el Múltiple del Escape; Downstream; B1S2; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Upstream; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | 5 Wire Sensor in Manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | Titanium | — | — | 1.6L | L4 | GAS | Downstream | 4 Wire Sensor in Manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Upstream; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | 4 Wire Sensor in Manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | SE | — | — | 1.6L | L4 | GAS | Downstream | 5 Wire Sensor in Manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Upstream | In Manifold, 4 Wire Sensor; B1S1; Upstream; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | 5 Wire Sensor in Manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2015 | Ford | Fiesta | S | — | — | 1.6L | L4 | GAS | Downstream | 4 Wire Sensor in Manifold; B1S2; Downstream; Walker Products Aftermarket |
| 2014 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2014 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2014 | Ford | Fiesta | — | — | — | 1.6L | L4 | — | Upstream | Non- Turbo, 4 Wire Pre Cat Sensor; B1S1; Sensor de 4 cables antes del convertidor catalÃtico sin turbo; Upstream; Walker Products Aftermarket |
| 2014 | Ford | Fiesta | — | — | — | 1.6L | L4 | — | Downstream | Non- Turbo, 5 Wire Pre Cat Sensor; B1S2; Sensor de 5 cables antes del convertidor catalÃtico sin turbo; Downstream; Walker Products Aftermarket |
| 2014 | Ford | Fiesta | — | — | — | 1.6L | L4 | — | Downstream | Non- Turbo, 4 Wire Pre Cat Sensor; B1S2; Sensor de 4 cables antes del convertidor catalÃtico sin turbo; Downstream; Walker Products Aftermarket |
| 2014 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2014 | Ford | Fiesta | — | — | — | 1.6L | L4 | — | Upstream | Non- Turbo, 4 Wire Pre Cat Sensor; Sensor de 4 cables antes del convertidor catalÃtico sin turbo; Upstream; B1S1; Walker Products Aftermarket |
| 2014 | Ford | Fiesta | — | — | — | 1.6L | L4 | — | Downstream | Non- Turbo, 5 Wire Pre Cat Sensor; Sensor de 5 cables antes del convertidor catalÃtico sin turbo; Downstream; B1S2; Walker Products Aftermarket |
| 2014 | Ford | Fiesta | — | — | — | 1.6L | L4 | — | Downstream | Non- Turbo, 4 Wire Pre Cat Sensor; Sensor de 4 cables antes del convertidor catalÃtico sin turbo; Downstream; B1S2; Walker Products Aftermarket |
| 2014 | Ford | Fiesta | — | — | — | 1.6L | L4 | — | Upstream | Non- Turbo, 4 Wire Pre Cat Sensor; B1S1; Upstream; Walker Products Aftermarket |
| 2014 | Ford | Fiesta | — | — | — | 1.6L | L4 | — | Downstream | Non- Turbo, 5 Wire Pre Cat Sensor; B1S2; Downstream; Walker Products Aftermarket |
| 2014 | Ford | Fiesta | — | — | — | 1.6L | L4 | — | Downstream | Non- Turbo, 4 Wire Pre Cat Sensor; B1S2; Downstream; Walker Products Aftermarket |
| 2013 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2013 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2013 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2012 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2012 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2012 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2011 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2011 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2011 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2010 | Ford | Edge | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Upstream rear oxygen sensor for bank 1 sensor 1 position.; Walker Products Aftermarket |
| 2010 | Ford | Edge | — | — | — | 3.5L | V6 | GAS | Upstream Front | Front position Upstream Oxygen Sensor for Bank 2 Sensor 1 (B2S1); Walker Products Aftermarket |
| 2010 | Ford | Edge | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Compatible with Bank 1 Sensor 1, rear upstream oxygen sensor.; Walker Products Aftermarket |
| 2010 | Ford | Edge | — | — | — | 3.5L | V6 | GAS | Upstream Front | Front upstream oxygen sensor for bank 2 sensor 1 position.; Walker Products Aftermarket |
| 2010 | Ford | F-250 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2010 | Ford | F-250 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2010 | Ford | F-250 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2010 | Ford | F-250 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2010 | Ford | F-250 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2010 | Ford | F-250 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2010 | Ford | F-350 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2010 | Ford | F-350 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2010 | Ford | F-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2010 | Ford | F-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2010 | Ford | F-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2010 | Ford | F-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2010 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2010 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2010 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2010 | Ford | Fusion | — | — | Manual | 2.5L | L4 | — | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2010 | Ford | Fusion | — | — | Manual | 2.5L | L4 | — | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2010 | Lincoln | MKX | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2010 | Lincoln | MKX | — | — | — | 3.5L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2010 | Lincoln | MKZ | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2010 | Lincoln | MKZ | — | — | — | 3.5L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2010 | Mazda | CX-9 | — | — | — | 3.7L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2010 | Mazda | CX-9 | — | — | — | 3.7L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2009 | Ford | Edge | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Upstream rear oxygen sensor for bank 1 sensor 1 position.; Walker Products Aftermarket |
| 2009 | Ford | Edge | — | — | — | 3.5L | V6 | GAS | Upstream Front | Front position Upstream Oxygen Sensor for Bank 2 Sensor 1 (B2S1); Walker Products Aftermarket |
| 2009 | Ford | Edge | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Compatible with Bank 1 Sensor 1, rear upstream oxygen sensor.; Walker Products Aftermarket |
| 2009 | Ford | Edge | — | — | — | 3.5L | V6 | GAS | Upstream Front | Front upstream oxygen sensor for bank 2 sensor 1 position.; Walker Products Aftermarket |
| 2009 | Ford | Escape | — | — | — | 3.0L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2009 | Ford | Escape | — | — | — | 3.0L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2009 | Ford | Escape | — | — | — | 2.5L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2009 | Ford | Escape | — | — | — | 2.5L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2009 | Ford | F-250 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2009 | Ford | F-250 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2009 | Ford | F-250 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2009 | Ford | F-250 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2009 | Ford | F-250 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2009 | Ford | F-250 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2009 | Ford | F-350 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2009 | Ford | F-350 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2009 | Ford | F-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2009 | Ford | F-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2009 | Ford | F-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2009 | Ford | F-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2009 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2009 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2009 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2009 | Ford | Fusion | — | FWD | — | 3.0L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2009 | Ford | Fusion | — | FWD | — | 3.0L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2009 | Ford | Fusion | — | AWD | — | 3.0L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2009 | Ford | Fusion | — | AWD | — | 3.0L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2009 | Ford | Fusion | — | — | — | 2.3L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket |
| 2009 | Ford | Fusion | — | — | — | 2.3L | L4 | GAS | Upstream | Compatible with California-ESV vehicles, Upstream Oxygen Sensor; Walker Products Aftermarket |
| 2009 | Ford | Fusion | — | — | — | 2.3L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket |
| 2009 | Ford | Fusion | — | — | — | 2.3L | L4 | GAS | Upstream | California emissions ESV vehicles oxygen sensor; Walker Products Aftermarket |
| 2009 | Ford | Fusion | — | — | — | 2.3L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket |
| 2009 | Ford | Taurus | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Non California engine, no California engine, upstream position, rear location; Walker Products Aftermarket |
| 2009 | Ford | Taurus | — | — | — | 3.5L | V6 | GAS | Upstream Front | Non-Calif-ESV No Calif-ESV Upstream Front; Walker Products Aftermarket |
| 2009 | Ford | Taurus | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Non Calif-ESV Upstream Rear Oxygen Sensor; Walker Products Aftermarket |
| 2009 | Ford | Taurus | — | — | — | 3.5L | V6 | GAS | Upstream Front | Fits non-California emissions vehicles upstream of catalytic converter.; Walker Products Aftermarket |
| 2009 | Ford | Taurus X | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Non California engine, no California engine, upstream position, rear location; Walker Products Aftermarket |
| 2009 | Ford | Taurus X | — | — | — | 3.5L | V6 | GAS | Upstream Front | Non-Calif-ESV No Calif-ESV Upstream Front; Walker Products Aftermarket |
| 2009 | Ford | Taurus X | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Non Calif-ESV Upstream Rear Oxygen Sensor; Walker Products Aftermarket |
| 2009 | Ford | Taurus X | — | — | — | 3.5L | V6 | GAS | Upstream Front | Fits non-California emissions vehicles upstream of catalytic converter.; Walker Products Aftermarket |
| 2009 | Lincoln | MKX | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2009 | Lincoln | MKX | — | — | — | 3.5L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2009 | Lincoln | MKZ | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2009 | Lincoln | MKZ | — | — | — | 3.5L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2009 | Mazda | CX-9 | — | — | — | 3.7L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2009 | Mazda | CX-9 | — | — | — | 3.7L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2009 | Mercury | Mariner | — | — | — | 3.0L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2009 | Mercury | Mariner | — | — | — | 3.0L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2009 | Mercury | Mariner | — | — | — | 2.5L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2009 | Mercury | Mariner | — | — | — | 2.5L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2009 | Mercury | Milan | — | FWD | — | 3.0L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2009 | Mercury | Milan | — | FWD | — | 3.0L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2009 | Mercury | Milan | — | AWD | — | 3.0L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2009 | Mercury | Milan | — | AWD | — | 3.0L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2009 | Mercury | Milan | — | — | — | 2.3L | L4 | GAS | Upstream | Compatible with California-ESV vehicles, Upstream Oxygen Sensor; Walker Products Aftermarket |
| 2009 | Mercury | Milan | — | — | — | 2.3L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket |
| 2009 | Mercury | Milan | — | — | — | 2.3L | L4 | GAS | Upstream | California emissions ESV vehicles oxygen sensor; Walker Products Aftermarket |
| 2009 | Mercury | Milan | — | — | — | 2.3L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket |
| 2009 | Mercury | Milan | — | — | — | 2.3L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket |
| 2009 | Mercury | Sable | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Non California engine, no California engine, upstream position, rear location; Walker Products Aftermarket |
| 2009 | Mercury | Sable | — | — | — | 3.5L | V6 | GAS | Upstream Front | Non-Calif-ESV No Calif-ESV Upstream Front; Walker Products Aftermarket |
| 2009 | Mercury | Sable | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Non Calif-ESV Upstream Rear Oxygen Sensor; Walker Products Aftermarket |
| 2009 | Mercury | Sable | — | — | — | 3.5L | V6 | GAS | Upstream Front | Fits non-California emissions vehicles upstream of catalytic converter.; Walker Products Aftermarket |
| 2008 | Ford | E-150 | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2008 | Ford | E-150 | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2008 | Ford | E-150 | — | — | — | 4.6L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2008 | Ford | E-150 | — | — | — | 4.6L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2008 | Ford | E-150 | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2008 | Ford | E-150 | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2008 | Ford | E-150 | — | — | — | 4.6L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2008 | Ford | E-150 | — | — | — | 4.6L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2008 | Ford | E-150 Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2008 | Ford | E-150 Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2008 | Ford | E-150 Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2008 | Ford | E-150 Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2008 | Ford | E-250 | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2008 | Ford | E-250 | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2008 | Ford | E-250 | — | — | — | 4.6L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2008 | Ford | E-250 | — | — | — | 4.6L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2008 | Ford | E-250 | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2008 | Ford | E-250 | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2008 | Ford | E-250 | — | — | — | 4.6L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2008 | Ford | E-250 | — | — | — | 4.6L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2008 | Ford | E-350 Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2008 | Ford | E-350 Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2008 | Ford | E-350 Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2008 | Ford | E-350 Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2008 | Ford | E-350 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2008 | Ford | E-350 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2008 | Ford | E-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2008 | Ford | E-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2008 | Ford | E-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2008 | Ford | E-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2008 | Ford | Edge | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Upstream rear oxygen sensor for bank 1 sensor 1 position.; Walker Products Aftermarket |
| 2008 | Ford | Edge | — | — | — | 3.5L | V6 | GAS | Upstream Front | Front position Upstream Oxygen Sensor for Bank 2 Sensor 1 (B2S1); Walker Products Aftermarket |
| 2008 | Ford | Edge | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Compatible with Bank 1 Sensor 1, rear upstream oxygen sensor.; Walker Products Aftermarket |
| 2008 | Ford | Edge | — | — | — | 3.5L | V6 | GAS | Upstream Front | Front upstream oxygen sensor for bank 2 sensor 1 position.; Walker Products Aftermarket |
| 2008 | Ford | Escape | — | — | — | 2.3L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2008 | Ford | Escape | — | — | — | 2.3L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2008 | Ford | F-250 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2008 | Ford | F-250 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2008 | Ford | F-250 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2008 | Ford | F-250 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2008 | Ford | F-250 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2008 | Ford | F-250 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2008 | Ford | F-350 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2008 | Ford | F-350 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2008 | Ford | F-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2008 | Ford | F-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2008 | Ford | F-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2008 | Ford | F-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2008 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2008 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2008 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2008 | Ford | Fusion | — | FWD | — | 3.0L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2008 | Ford | Fusion | — | FWD | — | 3.0L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2008 | Ford | Fusion | — | AWD | — | 3.0L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2008 | Ford | Fusion | — | AWD | — | 3.0L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2008 | Ford | Fusion | — | — | — | 2.3L | L4 | GAS | Upstream | Compatible with California-ESV vehicles, Upstream Oxygen Sensor; Walker Products Aftermarket |
| 2008 | Ford | Fusion | — | — | — | 2.3L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket |
| 2008 | Ford | Fusion | — | — | — | 2.3L | L4 | GAS | Upstream | California emissions ESV vehicles oxygen sensor; Walker Products Aftermarket |
| 2008 | Ford | Fusion | — | — | — | 2.3L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket |
| 2008 | Ford | Fusion | — | — | — | 2.3L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket |
| 2008 | Ford | Taurus | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Non California engine, no California engine, upstream position, rear location; Walker Products Aftermarket |
| 2008 | Ford | Taurus | — | — | — | 3.5L | V6 | GAS | Upstream Front | Non-Calif-ESV No Calif-ESV Upstream Front; Walker Products Aftermarket |
| 2008 | Ford | Taurus | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Non Calif-ESV Upstream Rear Oxygen Sensor; Walker Products Aftermarket |
| 2008 | Ford | Taurus | — | — | — | 3.5L | V6 | GAS | Upstream Front | Fits non-California emissions vehicles upstream of catalytic converter.; Walker Products Aftermarket |
| 2008 | Ford | Taurus X | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Non California engine, no California engine, upstream position, rear location; Walker Products Aftermarket |
| 2008 | Ford | Taurus X | — | — | — | 3.5L | V6 | GAS | Upstream Front | Non-Calif-ESV No Calif-ESV Upstream Front; Walker Products Aftermarket |
| 2008 | Ford | Taurus X | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Non Calif-ESV Upstream Rear Oxygen Sensor; Walker Products Aftermarket |
| 2008 | Ford | Taurus X | — | — | — | 3.5L | V6 | GAS | Upstream Front | Fits non-California emissions vehicles upstream of catalytic converter.; Walker Products Aftermarket |
| 2008 | Lincoln | MKX | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2008 | Lincoln | MKX | — | — | — | 3.5L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2008 | Lincoln | MKZ | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2008 | Lincoln | MKZ | — | — | — | 3.5L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2008 | Mazda | CX-9 | — | — | — | 3.7L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2008 | Mazda | CX-9 | — | — | — | 3.7L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2008 | Mazda | Tribute | — | — | — | 2.3L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2008 | Mazda | Tribute | — | — | — | 2.3L | L4 | ELECTRIC/GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2008 | Mazda | Tribute | — | — | — | 2.3L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2008 | Mazda | Tribute | — | — | — | 2.3L | L4 | ELECTRIC/GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2008 | Mercury | Mariner | — | — | — | 2.3L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2008 | Mercury | Mariner | — | — | — | 2.3L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2008 | Mercury | Milan | — | FWD | — | 3.0L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2008 | Mercury | Milan | — | FWD | — | 3.0L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2008 | Mercury | Milan | — | AWD | — | 3.0L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2008 | Mercury | Milan | — | AWD | — | 3.0L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2008 | Mercury | Milan | — | — | — | 2.3L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket |
| 2008 | Mercury | Milan | — | — | — | 2.3L | L4 | GAS | Upstream | Compatible with California-ESV vehicles, Upstream Oxygen Sensor; Walker Products Aftermarket |
| 2008 | Mercury | Milan | — | — | — | 2.3L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket |
| 2008 | Mercury | Milan | — | — | — | 2.3L | L4 | GAS | Upstream | California emissions ESV vehicles oxygen sensor; Walker Products Aftermarket |
| 2008 | Mercury | Milan | — | — | — | 2.3L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket |
| 2008 | Mercury | Sable | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Non California engine, no California engine, upstream position, rear location; Walker Products Aftermarket |
| 2008 | Mercury | Sable | — | — | — | 3.5L | V6 | GAS | Upstream Front | Non-Calif-ESV No Calif-ESV Upstream Front; Walker Products Aftermarket |
| 2008 | Mercury | Sable | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Non Calif-ESV Upstream Rear Oxygen Sensor; Walker Products Aftermarket |
| 2008 | Mercury | Sable | — | — | — | 3.5L | V6 | GAS | Upstream Front | Fits non-California emissions vehicles upstream of catalytic converter.; Walker Products Aftermarket |
| 2007 | Ford | E-150 | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2007 | Ford | E-150 | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2007 | Ford | E-150 | — | — | — | 4.6L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2007 | Ford | E-150 | — | — | — | 4.6L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2007 | Ford | E-150 | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2007 | Ford | E-150 | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2007 | Ford | E-150 | — | — | — | 4.6L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2007 | Ford | E-150 | — | — | — | 4.6L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2007 | Ford | E-150 Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2007 | Ford | E-150 Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2007 | Ford | E-150 Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2007 | Ford | E-150 Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2007 | Ford | E-250 | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2007 | Ford | E-250 | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2007 | Ford | E-250 | — | — | — | 4.6L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2007 | Ford | E-250 | — | — | — | 4.6L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2007 | Ford | E-250 | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2007 | Ford | E-250 | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2007 | Ford | E-250 | — | — | — | 4.6L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2007 | Ford | E-250 | — | — | — | 4.6L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2007 | Ford | E-350 Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2007 | Ford | E-350 Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2007 | Ford | E-350 Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2007 | Ford | E-350 Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2007 | Ford | E-350 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2007 | Ford | E-350 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2007 | Ford | E-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2007 | Ford | E-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2007 | Ford | E-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2007 | Ford | E-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2007 | Ford | Edge | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Upstream rear oxygen sensor for bank 1 sensor 1 position.; Walker Products Aftermarket |
| 2007 | Ford | Edge | — | — | — | 3.5L | V6 | GAS | Upstream Front | Front position Upstream Oxygen Sensor for Bank 2 Sensor 1 (B2S1); Walker Products Aftermarket |
| 2007 | Ford | Edge | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Compatible with Bank 1 Sensor 1, rear upstream oxygen sensor.; Walker Products Aftermarket |
| 2007 | Ford | Edge | — | — | — | 3.5L | V6 | GAS | Upstream Front | Front upstream oxygen sensor for bank 2 sensor 1 position.; Walker Products Aftermarket |
| 2007 | Ford | Escape | — | — | — | 2.3L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2007 | Ford | Escape | — | — | — | 2.3L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2007 | Ford | F-250 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2007 | Ford | F-250 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2007 | Ford | F-250 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2007 | Ford | F-250 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2007 | Ford | F-250 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2007 | Ford | F-250 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2007 | Ford | F-350 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2007 | Ford | F-350 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2007 | Ford | F-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2007 | Ford | F-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2007 | Ford | F-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2007 | Ford | F-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2007 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2007 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2007 | Ford | Fiesta | — | — | — | 1.6L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2007 | Ford | Fusion | — | — | — | 3.0L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2007 | Ford | Fusion | — | — | — | 3.0L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2007 | Ford | Fusion | — | — | — | 2.3L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2007 | Ford | Fusion | — | — | — | 2.3L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2007 | Lincoln | MKX | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2007 | Lincoln | MKX | — | — | — | 3.5L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2007 | Lincoln | MKZ | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2007 | Lincoln | MKZ | — | — | — | 3.5L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2007 | Mazda | CX-9 | — | — | — | 3.5L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2007 | Mazda | CX-9 | — | — | — | 3.5L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2007 | Mercury | Mariner | — | — | — | 2.3L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2007 | Mercury | Mariner | — | — | — | 2.3L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2007 | Mercury | Milan | — | FWD | — | 3.0L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2007 | Mercury | Milan | — | FWD | — | 3.0L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2007 | Mercury | Milan | — | AWD | — | 3.0L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2007 | Mercury | Milan | — | AWD | — | 3.0L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2007 | Mercury | Milan | — | — | — | 2.3L | L4 | GAS | Upstream | Compatible with California-ESV vehicles, Upstream Oxygen Sensor; Walker Products Aftermarket |
| 2007 | Mercury | Milan | — | — | — | 2.3L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket |
| 2007 | Mercury | Milan | — | — | — | 2.3L | L4 | GAS | Upstream | California emissions ESV vehicles oxygen sensor; Walker Products Aftermarket |
| 2007 | Mercury | Milan | — | — | — | 2.3L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket |
| 2007 | Mercury | Milan | — | — | — | 2.3L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket |
| 2006 | Ford | E-150 | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2006 | Ford | E-150 | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2006 | Ford | E-150 | — | — | — | 4.6L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2006 | Ford | E-150 | — | — | — | 4.6L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2006 | Ford | E-150 | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2006 | Ford | E-150 | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2006 | Ford | E-150 | — | — | — | 4.6L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2006 | Ford | E-150 | — | — | — | 4.6L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2006 | Ford | E-250 | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2006 | Ford | E-250 | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2006 | Ford | E-250 | — | — | — | 4.6L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2006 | Ford | E-250 | — | — | — | 4.6L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2006 | Ford | E-250 | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2006 | Ford | E-250 | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2006 | Ford | E-250 | — | — | — | 4.6L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2006 | Ford | E-250 | — | — | — | 4.6L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2006 | Ford | E-350 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2006 | Ford | E-350 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2006 | Ford | E-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2006 | Ford | E-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2006 | Ford | E-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2006 | Ford | E-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2006 | Ford | Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2006 | Ford | Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2006 | Ford | Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2006 | Ford | Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2006 | Ford | Escape | — | — | — | 2.3L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2006 | Ford | Escape | — | — | — | 2.3L | L4 | ELECTRIC/GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2006 | Ford | Escape | — | — | — | 2.3L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2006 | Ford | Escape | — | — | — | 2.3L | L4 | ELECTRIC/GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2006 | Ford | F-250 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2006 | Ford | F-250 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2006 | Ford | F-250 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2006 | Ford | F-250 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2006 | Ford | F-250 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2006 | Ford | F-250 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2006 | Ford | F-350 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2006 | Ford | F-350 Super Duty | — | — | — | 6.8L | V10 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2006 | Ford | F-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2006 | Ford | F-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2006 | Ford | F-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2006 | Ford | F-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2006 | Ford | Fusion | — | — | — | 3.0L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2006 | Ford | Fusion | — | — | — | 3.0L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2006 | Ford | Fusion | — | — | — | 2.3L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket |
| 2006 | Ford | Fusion | — | — | — | 2.3L | L4 | GAS | Upstream | Compatible with California-ESV vehicles, Upstream Oxygen Sensor; Walker Products Aftermarket |
| 2006 | Ford | Fusion | — | — | — | 2.3L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket |
| 2006 | Ford | Fusion | — | — | — | 2.3L | L4 | GAS | Upstream | California emissions ESV vehicles oxygen sensor; Walker Products Aftermarket |
| 2006 | Ford | Fusion | — | — | — | 2.3L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket |
| 2006 | Lincoln | Zephyr | — | — | — | 3.0L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2006 | Lincoln | Zephyr | — | — | — | 3.0L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2006 | Mazda | Tribute | — | — | — | 3.0L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2006 | Mazda | Tribute | — | — | — | 3.0L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2006 | Mazda | Tribute | — | — | — | 2.3L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2006 | Mazda | Tribute | — | — | — | 2.3L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2006 | Mercury | Mariner | — | — | — | 2.3L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2006 | Mercury | Mariner | — | — | — | 2.3L | L4 | ELECTRIC/GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2006 | Mercury | Mariner | — | — | — | 2.3L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2006 | Mercury | Mariner | — | — | — | 2.3L | L4 | ELECTRIC/GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2006 | Mercury | Milan | — | — | — | 3.0L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2006 | Mercury | Milan | — | — | — | 3.0L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2006 | Mercury | Milan | — | — | — | 2.3L | L4 | GAS | Upstream | Compatible with California-ESV vehicles, Upstream Oxygen Sensor; Walker Products Aftermarket |
| 2006 | Mercury | Milan | — | — | — | 2.3L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket |
| 2006 | Mercury | Milan | — | — | — | 2.3L | L4 | GAS | Upstream | California emissions ESV vehicles oxygen sensor; Walker Products Aftermarket |
| 2006 | Mercury | Milan | — | — | — | 2.3L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket |
| 2006 | Mercury | Milan | — | — | — | 2.3L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket |
| 2005 | Ford | E-150 | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2005 | Ford | E-150 | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2005 | Ford | E-150 | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2005 | Ford | E-150 | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2005 | Ford | E-150 Club Wagon | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2005 | Ford | E-150 Club Wagon | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2005 | Ford | E-150 Club Wagon | — | — | — | 4.6L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2005 | Ford | E-150 Club Wagon | — | — | — | 4.6L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2005 | Ford | E-150 Club Wagon | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2005 | Ford | E-150 Club Wagon | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2005 | Ford | E-150 Club Wagon | — | — | — | 4.6L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2005 | Ford | E-150 Club Wagon | — | — | — | 4.6L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2005 | Ford | E-250 | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2005 | Ford | E-250 | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2005 | Ford | E-250 | — | — | — | 4.6L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2005 | Ford | E-250 | — | — | — | 4.6L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2005 | Ford | E-250 | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2005 | Ford | E-250 | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2005 | Ford | E-250 | — | — | — | 4.6L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2005 | Ford | E-250 | — | — | — | 4.6L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2005 | Ford | E-350 Club Wagon | — | — | — | 6.8L | V10 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2005 | Ford | E-350 Club Wagon | — | — | — | 6.8L | V10 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2005 | Ford | E-350 Club Wagon | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2005 | Ford | E-350 Club Wagon | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2005 | Ford | E-350 Club Wagon | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2005 | Ford | E-350 Club Wagon | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2005 | Ford | E-350 Super Duty | — | — | — | 6.8L | V10 | — | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2005 | Ford | E-350 Super Duty | — | — | — | 6.8L | V10 | — | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2005 | Ford | E-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2005 | Ford | E-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2005 | Ford | E-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2005 | Ford | E-350 Super Duty | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2005 | Ford | Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2005 | Ford | Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2005 | Ford | Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2005 | Ford | Econoline | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| 2005 | Ford | Escape | — | — | — | 2.3L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2005 | Ford | Escape | — | — | — | 2.3L | L4 | ELECTRIC/GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2005 | Ford | Escape | — | — | — | 2.3L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2005 | Ford | Escape | — | — | — | 2.3L | L4 | ELECTRIC/GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2005 | Mazda | Tribute | — | — | — | 3.0L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2005 | Mazda | Tribute | — | — | — | 3.0L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2005 | Mazda | Tribute | — | — | — | 2.3L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2005 | Mazda | Tribute | — | — | — | 2.3L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2005 | Mercury | Mariner | — | — | — | 2.3L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2005 | Mercury | Mariner | — | — | — | 2.3L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2003 | Ford | E-150 | — | — | — | 5.4L | V8 | GAS | Upstream Right | Compatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket |
| 2003 | Ford | E-150 | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket |
| 2003 | Ford | E-150 | — | — | — | 5.4L | V8 | GAS | Upstream Right | Upstream oxygen sensor for right bank position 1; Walker Products Aftermarket |
| 2003 | Ford | E-150 | — | — | — | 5.4L | V8 | GAS | Upstream Left | Upstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket |
| No rows match your filter. | ||||||||||