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OE Quality
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Walker
OE ReplacementWalker 350-34474 Oxygen Sensor
| Brand | Walker 350-34474 |
|---|---|
| Position | Downstream Right, Downstream Left, Downstream, and Downstream Front |
| Wiring Harness Length | 24.33 |
| Wire Gauge Measurement | 20 |
| Sensor Type | Heated |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Connector Shape | Radiused polygon |
| Connector Gender | Male |
| Thread Diameter | 18.0 |
| Overall Length | 27.87 |
| Mounting Type | Threaded |
| Product line | OE Replacement |
| Fits | Lexus and Toyota · 219 vehicles |
OE replacement. Engineered for specific application and ECU feedback.
Heated sensor. Helps maintain accurate oxygen and air-fuel readings.
Threaded mount. Installs with a secure, direct-fit connection.
$68.88Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
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Walker 350-34474 Oxygen Sensor Overview
Walker Products 350-34474 is a heated oxygen sensor built as a specific-fit OE replacement for select Lexus and Toyota applications. It is engineered for downstream positions and provides the ECU with the feedback needed to monitor exhaust performance and emissions control.
For Lexus GS F, RC F, IS500, and related Toyota and Lexus models, this Walker Products Aftermarket sensor is matched to the application, connector style, and mounting position for direct replacement service.
Key Features
- Heated oxygen sensor for downstream exhaust monitoring
- Specific-fit design for the listed Lexus and Toyota applications
- 4-wire configuration with a male radiused-polygon connector
- Threaded mounting with 18.0 mm thread diameter
- 24.33 in. wiring harness length and 27.87 in. overall length
- Walker Products Aftermarket part number 350-34474
Product Details
Walker Products engine management sensors are developed as OE-style replacements for worldwide vehicle applications. Part number 350-34474 is designed for downstream oxygen sensor locations and is intended to restore accurate exhaust feedback to the ECU when the original sensor has aged, been damaged, or triggered a fault code. This matters on vehicles such as the Lexus GS350, LS460, RC350, and Toyota Prius, where downstream sensor performance affects emissions monitoring and diagnostic reporting.
The sensor uses a heated design to help it reach operating temperature quickly, and the threaded mounting style supports a secure exhaust installation. The connector, harness length, and wire gauge are specified for the listed applications, helping ensure proper routing and electrical connection on the vehicle.
What It Helps Address
- Check engine light related to oxygen sensor performance
- Poor fuel economy caused by inaccurate exhaust feedback
- Increased exhaust emissions from a failing downstream sensor
- Stored ECU fault codes tied to the affected sensor circuit
- Rough engine operation when emissions feedback is compromised
Installation Notes
Verify the exact year, model, and sensor position before ordering. This part is listed for downstream right, downstream left, downstream, and downstream front applications depending on vehicle configuration. Confirm connector shape, thread diameter, and harness routing against the original sensor before installation. Inspect the sensor wiring harness and connector for heat damage or physical wear, since damaged wiring can shorten service life and affect readings.
- Fits 2022-2025 Lexus IS500, downstream right
- Fits 2022-2025 Lexus RC F, downstream right
- Fits 2015-2021 Lexus RC F, downstream right
- Fits 2015-2021 Lexus RC F, downstream left
- Fits 2016-2020 Lexus GS F, downstream right
- Fits 2016-2020 Lexus GS F, downstream left
- Fits 2018 Lexus GS450h, downstream right
- Fits 2018 Lexus IS300, downstream right
- Fits 2018 Lexus IS350, downstream left
- Fits 2018 Lexus RC300, downstream right
- Fits 2018 Lexus RC350, downstream right
- Fits 2018 Lexus RC350, downstream left
- Fits 2016-2017 Lexus IS300, downstream right
- Fits 2014-2017 Lexus IS350, downstream right
- Fits 2015-2017 Lexus IS350, downstream left
- Fits 2007-2017 Lexus LS460, downstream right
- Fits 2015-2017 Lexus LS460, downstream left
- Fits 2007-2013 Lexus LS460, downstream left
- Fits 2016-2017 Lexus RC300, downstream right
- Fits 2015-2017 Lexus RC350, downstream right
- Fits 2015-2017 Lexus RC350, downstream left
- Fits 2015 Lexus GS350, downstream right
- Fits 2015 Lexus GS350, downstream left
- Fits 2015 Lexus GS450h, downstream right
- Fits 2015 Lexus IS250, downstream right
- Fits 2015 Lexus IS250, downstream left
- Fits 2008-2015 Lexus LS600h, downstream right
- Fits 2014 Lexus GS350, downstream right
- Fits 2014 Lexus GS350, downstream left
- Fits 2014 Lexus GS450h, downstream right
- Fits 2014 Lexus IS250, downstream right
- Fits 2014 Lexus IS250, downstream left
- Fits 2014 Lexus LS460, downstream right
- Fits 2014 Lexus LS460, downstream left
- Fits 2004-2009 Toyota Prius, downstream
- Fits 2001-2006 Lexus GS430, downstream right
- Fits 2001-2006 Lexus GS430, downstream left
- Fits 2000-2005 Toyota Celica, downstream
- Fits 1996-1997 Toyota Celica, downstream
- Fits 1998-2000 Lexus GS400, downstream right
- Fits 1998-2000 Lexus GS400, downstream left
- Fits 1999-2000 Toyota Sienna, downstream front
- Fits 1998 Toyota Sienna, downstream front
Quality Assurance
Walker Products has supplied engine management and oxygen/air-fuel sensors since 1946 and operates with Automotive ISO9001/TS 16949 certification. Part number 350-34474 is manufactured for the specified application and fitment position to support the diagnostic feedback expected by the ECU.
This part fits 219 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Submodel | Drive Type | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 2024 | Lexus | IS500 | — | — | 5.0L | V8 | — | Downstream Right | OE Replacement |
| 2024 | Lexus | RC F | — | — | 5.0L | V8 | — | Downstream Right | OE Replacement |
| 2023 | Lexus | IS500 | — | — | 5.0L | V8 | — | Downstream Right | OE Replacement |
| 2023 | Lexus | RC F | — | — | 5.0L | V8 | — | Downstream Right | OE Replacement |
| 2022 | Lexus | IS500 | — | — | 5.0L | V8 | — | Downstream Right | OE Replacement |
| 2022 | Lexus | RC F | — | — | 5.0L | V8 | — | Downstream Right | OE Replacement |
| 2021 | Lexus | RC F | — | — | 5.0L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2021 | Lexus | RC F | — | — | 5.0L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2020 | Lexus | GS F | Base | — | 5.0L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2020 | Lexus | GS F | Base | — | 5.0L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2020 | Lexus | RC F | — | — | 5.0L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2020 | Lexus | RC F | — | — | 5.0L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2019 | Lexus | GS F | Base | — | 5.0L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2019 | Lexus | GS F | Base | — | 5.0L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2019 | Lexus | RC F | — | — | 5.0L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2019 | Lexus | RC F | — | — | 5.0L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2018 | Lexus | GS F | Base | — | 5.0L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2018 | Lexus | GS F | Base | — | 5.0L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2018 | Lexus | GS450h | — | — | 3.5L | V6 | ELECTRIC/GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2018 | Lexus | IS300 | F Sport | — | 3.5L | V6 | GAS | Downstream Right | From October 2017 downstream to the right side until October 2017.; Walker Products Aftermarket |
| 2018 | Lexus | IS300 | Base | — | 3.5L | V6 | GAS | Downstream Right | From October 2017 downstream to the right side until October 2017.; Walker Products Aftermarket |
| 2018 | Lexus | IS300 | F Sport | — | 3.5L | V6 | GAS | Downstream Right | Downstream Right fitment only for vehicles up to October 2017.; Walker Products Aftermarket |
| 2018 | Lexus | IS300 | Base | — | 3.5L | V6 | GAS | Downstream Right | Downstream Right fitment only for vehicles up to October 2017.; Walker Products Aftermarket |
| 2018 | Lexus | IS350 | — | RWD | 3.5L | V6 | — | Downstream Left | OE Replacement |
| 2018 | Lexus | RC F | — | — | 5.0L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2018 | Lexus | RC F | — | — | 5.0L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2018 | Lexus | RC300 | — | — | 3.5L | V6 | GAS | Downstream Right | Downstream right oxygen sensor fitting for vehicles manufactured up to 11/2017.; Walker Products Aftermarket |
| 2018 | Lexus | RC300 | — | — | 3.5L | V6 | GAS | Downstream Right | Downstream Right Oxygen Sensor fitment to November 2017; Walker Products Aftermarket |
| 2018 | Lexus | RC350 | — | RWD | 3.5L | V6 | GAS | Downstream Right | Downstream right oxygen sensor fitting for vehicles manufactured up to 11/2017.; Walker Products Aftermarket |
| 2018 | Lexus | RC350 | — | RWD | 3.5L | V6 | GAS | Downstream Left | Oxygen Sensor for vehicles made from Al 11/2017 to 11/2017, downstream on the left side.; Walker Products Aftermarket |
| 2018 | Lexus | RC350 | — | AWD | 3.5L | V6 | GAS | Downstream Right | Downstream right oxygen sensor fitting for vehicles manufactured up to 11/2017.; Walker Products Aftermarket |
| 2018 | Lexus | RC350 | — | RWD | 3.5L | V6 | GAS | Downstream Right | Downstream Right Oxygen Sensor fitment to November 2017; Walker Products Aftermarket |
| 2018 | Lexus | RC350 | — | RWD | 3.5L | V6 | GAS | Downstream Left | Downstream Left fitment for Oxygen Sensor up to 11/2017; Walker Products Aftermarket |
| 2018 | Lexus | RC350 | — | AWD | 3.5L | V6 | GAS | Downstream Right | Downstream Right Oxygen Sensor fitment to November 2017; Walker Products Aftermarket |
| 2017 | Lexus | GS F | Base | — | 5.0L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2017 | Lexus | GS F | Base | — | 5.0L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2017 | Lexus | IS300 | — | — | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2017 | Lexus | IS350 | F Sport | RWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2017 | Lexus | IS350 | F Sport | RWD | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2017 | Lexus | IS350 | F Sport | AWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2017 | Lexus | IS350 | Base | RWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2017 | Lexus | IS350 | Base | RWD | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2017 | Lexus | IS350 | Base | AWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2017 | Lexus | LS460 | L | RWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2017 | Lexus | LS460 | L | RWD | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2017 | Lexus | LS460 | L | AWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2017 | Lexus | LS460 | F Sport | RWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2017 | Lexus | LS460 | F Sport | RWD | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2017 | Lexus | LS460 | F Sport | AWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2017 | Lexus | LS460 | Base | RWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2017 | Lexus | LS460 | Base | RWD | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2017 | Lexus | LS460 | Base | AWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2017 | Lexus | RC F | — | — | 5.0L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2017 | Lexus | RC F | — | — | 5.0L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2017 | Lexus | RC300 | — | — | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2017 | Lexus | RC350 | — | RWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2017 | Lexus | RC350 | — | RWD | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2017 | Lexus | RC350 | — | AWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2016 | Lexus | GS F | Base | — | 5.0L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2016 | Lexus | GS F | Base | — | 5.0L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2016 | Lexus | IS300 | — | — | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2016 | Lexus | IS350 | F Sport | RWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2016 | Lexus | IS350 | F Sport | RWD | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2016 | Lexus | IS350 | F Sport | AWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2016 | Lexus | IS350 | Base | RWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2016 | Lexus | IS350 | Base | RWD | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2016 | Lexus | IS350 | Base | AWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2016 | Lexus | LS460 | L | RWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2016 | Lexus | LS460 | L | RWD | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2016 | Lexus | LS460 | L | AWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2016 | Lexus | LS460 | F Sport | RWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2016 | Lexus | LS460 | F Sport | RWD | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2016 | Lexus | LS460 | F Sport | AWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2016 | Lexus | LS460 | Base | RWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2016 | Lexus | LS460 | Base | RWD | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2016 | Lexus | LS460 | Base | AWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2016 | Lexus | RC F | — | — | 5.0L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2016 | Lexus | RC F | — | — | 5.0L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2016 | Lexus | RC300 | — | — | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2016 | Lexus | RC350 | — | RWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2016 | Lexus | RC350 | — | RWD | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2016 | Lexus | RC350 | — | AWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | GS350 | F Sport | RWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | GS350 | F Sport | RWD | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2015 | Lexus | GS350 | F Sport | AWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | GS350 | Base | RWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | GS350 | Base | RWD | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2015 | Lexus | GS350 | Base | AWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | GS450h | — | — | 3.5L | V6 | ELECTRIC/GAS | Downstream Right | Del 09/2014; Downstream; Right; From 09/2014; Walker Products Aftermarket |
| 2015 | Lexus | GS450h | — | — | 3.5L | V6 | ELECTRIC/GAS | Downstream Right | Al 09/2014; Downstream; Right; To 09/2014; Walker Products Aftermarket |
| 2015 | Lexus | GS450h | — | — | 3.5L | V6 | ELECTRIC/GAS | Downstream Right | Downstream Right Oxygen Sensor from September 2014; Walker Products Aftermarket |
| 2015 | Lexus | GS450h | — | — | 3.5L | V6 | ELECTRIC/GAS | Downstream Right | Downstream; Right; To 09/2014; Walker Products Aftermarket |
| 2015 | Lexus | IS250 | F Sport | RWD | 2.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | IS250 | F Sport | RWD | 2.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2015 | Lexus | IS250 | F Sport | AWD | 2.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | IS250 | C | — | 2.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | IS250 | C | — | 2.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2015 | Lexus | IS250 | C F Sport | — | 2.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | IS250 | C F Sport | — | 2.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2015 | Lexus | IS250 | Base | RWD | 2.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | IS250 | Base | RWD | 2.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2015 | Lexus | IS250 | Base | AWD | 2.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | IS350 | F Sport | RWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | IS350 | F Sport | RWD | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2015 | Lexus | IS350 | F Sport | AWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | IS350 | C | — | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | IS350 | C | — | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2015 | Lexus | IS350 | C F Sport | — | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | IS350 | C F Sport | — | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2015 | Lexus | IS350 | Base | RWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | IS350 | Base | RWD | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2015 | Lexus | IS350 | Base | AWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | LS460 | L | RWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | LS460 | L | RWD | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2015 | Lexus | LS460 | L | AWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | LS460 | F Sport | RWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | LS460 | F Sport | RWD | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2015 | Lexus | LS460 | F Sport | AWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | LS460 | Base | RWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | LS460 | Base | RWD | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2015 | Lexus | LS460 | Base | AWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | LS600h | — | — | 5.0L | V8 | ELECTRIC/GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | RC F | — | — | 5.0L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | RC F | — | — | 5.0L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2015 | Lexus | RC350 | — | RWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2015 | Lexus | RC350 | — | RWD | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2015 | Lexus | RC350 | — | AWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2014 | Lexus | GS350 | — | RWD | 3.5L | V6 | GAS | Downstream Right | From 08/2013; Del 08/2013; Downstream; Right; Walker Products Aftermarket |
| 2014 | Lexus | GS350 | — | RWD | 3.5L | V6 | GAS | Downstream Left | From 08/2013; Del 08/2013; Downstream; Left; Walker Products Aftermarket |
| 2014 | Lexus | GS350 | — | AWD | 3.5L | V6 | GAS | Downstream Right | From 08/2013; Del 08/2013; Downstream; Right; Walker Products Aftermarket |
| 2014 | Lexus | GS350 | — | RWD | 3.5L | V6 | GAS | Downstream Right | Downstream right oxygen sensor fitment from August 2013.; Walker Products Aftermarket |
| 2014 | Lexus | GS350 | — | RWD | 3.5L | V6 | GAS | Downstream Left | Fits down stream on the left side, starting from August 2013.; Walker Products Aftermarket |
| 2014 | Lexus | GS350 | — | AWD | 3.5L | V6 | GAS | Downstream Right | Downstream right oxygen sensor fitment from August 2013.; Walker Products Aftermarket |
| 2014 | Lexus | GS450h | — | — | 3.5L | V6 | ELECTRIC/GAS | Downstream Right | From 09/2013; Del 09/2013; Downstream; Right; Walker Products Aftermarket |
| 2014 | Lexus | GS450h | — | — | 3.5L | V6 | ELECTRIC/GAS | Downstream Right | From 09/2013; Downstream; Right; Walker Products Aftermarket |
| 2014 | Lexus | IS250 | — | AWD | 2.5L | V6 | GAS | Downstream Right | Up to 08/2013, From 08/2013, Downstream, Right.; Walker Products Aftermarket |
| 2014 | Lexus | IS250 | — | AWD | 2.5L | V6 | GAS | Downstream Right | From 08/2013; Del 08/2013; Downstream; Right; Walker Products Aftermarket |
| 2014 | Lexus | IS250 | — | AWD | 2.5L | V6 | GAS | Downstream Left | Downstream Oxygen Sensor; Fits vehicles up to 08/2013 and from 08/2013; For the left side of the vehicle; Walker Products Aftermarket |
| 2014 | Lexus | IS250 | — | AWD | 2.5L | V6 | GAS | Downstream Left | From 08/2013; Del 08/2013; Downstream; Left; Walker Products Aftermarket |
| 2014 | Lexus | IS250 | — | AWD | 2.5L | V6 | GAS | Downstream Right | To 08/2013 Downstream Right Oxygen Sensor; Walker Products Aftermarket |
| 2014 | Lexus | IS250 | — | AWD | 2.5L | V6 | GAS | Downstream Right | Downstream right oxygen sensor fitment from August 2013.; Walker Products Aftermarket |
| 2014 | Lexus | IS250 | — | AWD | 2.5L | V6 | GAS | Downstream Left | 08/2013 Downstream Left; Walker Products Aftermarket |
| 2014 | Lexus | IS250 | — | AWD | 2.5L | V6 | GAS | Downstream Left | Fits down stream on the left side, starting from August 2013.; Walker Products Aftermarket |
| 2014 | Lexus | IS350 | — | RWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2014 | Lexus | IS350 | — | AWD | 3.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2014 | Lexus | LS460 | — | RWD | 4.6L | V8 | GAS | Downstream Right | From 09/2013; Del 09/2013; Downstream; Right; Walker Products Aftermarket |
| 2014 | Lexus | LS460 | — | RWD | 4.6L | V8 | GAS | Downstream Right | To 09/2013; Al 09/2013; Downstream; Right; Walker Products Aftermarket |
| 2014 | Lexus | LS460 | — | RWD | 4.6L | V8 | GAS | Downstream Left | From 09/2013; Del 09/2013; Downstream; Left; Walker Products Aftermarket |
| 2014 | Lexus | LS460 | — | RWD | 4.6L | V8 | GAS | Downstream Left | To 09/2013; Al 09/2013; Downstream; Left; Walker Products Aftermarket |
| 2014 | Lexus | LS460 | — | AWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2014 | Lexus | LS460 | — | RWD | 4.6L | V8 | GAS | Downstream Right | From 09/2013; Downstream; Right; Walker Products Aftermarket |
| 2014 | Lexus | LS460 | — | RWD | 4.6L | V8 | GAS | Downstream Right | Oxygen Sensor fits Downstream Right side up to September 2013; Walker Products Aftermarket |
| 2014 | Lexus | LS460 | — | RWD | 4.6L | V8 | GAS | Downstream Left | From 09/2013; Downstream; Left; Walker Products Aftermarket |
| 2014 | Lexus | LS460 | — | RWD | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor fits up to September 2013.; Walker Products Aftermarket |
| 2014 | Lexus | LS600h | — | — | 5.0L | V8 | ELECTRIC/GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2013 | Lexus | LS460 | — | RWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2013 | Lexus | LS460 | — | RWD | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2013 | Lexus | LS460 | — | AWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2013 | Lexus | LS600h | — | — | 5.0L | V8 | ELECTRIC/GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2012 | Lexus | LS460 | — | RWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2012 | Lexus | LS460 | — | RWD | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2012 | Lexus | LS460 | — | AWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2012 | Lexus | LS600h | — | — | 5.0L | V8 | ELECTRIC/GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2011 | Lexus | LS460 | — | RWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2011 | Lexus | LS460 | — | RWD | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2011 | Lexus | LS460 | — | AWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2011 | Lexus | LS600h | — | — | 5.0L | V8 | ELECTRIC/GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2010 | Lexus | LS460 | — | RWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2010 | Lexus | LS460 | — | RWD | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2010 | Lexus | LS460 | — | AWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2010 | Lexus | LS600h | — | — | 5.0L | V8 | ELECTRIC/GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2009 | Lexus | LS460 | — | RWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2009 | Lexus | LS460 | — | RWD | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2009 | Lexus | LS460 | — | AWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2009 | Lexus | LS600h | — | — | 5.0L | V8 | ELECTRIC/GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2009 | Toyota | Prius | — | — | 1.5L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2008 | Lexus | LS460 | — | RWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2008 | Lexus | LS460 | — | RWD | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2008 | Lexus | LS600h | — | — | 5.0L | V8 | ELECTRIC/GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2008 | Toyota | Prius | — | — | 1.5L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2007 | Lexus | LS460 | — | RWD | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2007 | Lexus | LS460 | — | RWD | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2007 | Toyota | Prius | — | — | 1.5L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2006 | Lexus | GS430 | — | — | 4.3L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2006 | Lexus | GS430 | — | — | 4.3L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2006 | Toyota | Prius | — | — | 1.5L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2005 | Lexus | GS430 | — | — | 4.3L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2005 | Lexus | GS430 | — | — | 4.3L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2005 | Toyota | Celica | — | — | 1.8L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2005 | Toyota | Prius | — | — | 1.5L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2004 | Lexus | GS430 | — | — | 4.3L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2004 | Lexus | GS430 | — | — | 4.3L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2004 | Toyota | Celica | — | — | 1.8L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2004 | Toyota | Prius | — | — | 1.5L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2003 | Lexus | GS430 | — | — | 4.3L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2003 | Lexus | GS430 | — | — | 4.3L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2003 | Toyota | Celica | — | — | 1.8L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2002 | Lexus | GS430 | — | — | 4.3L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2002 | Lexus | GS430 | — | — | 4.3L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2002 | Toyota | Celica | — | — | 1.8L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2001 | Lexus | GS430 | — | — | 4.3L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2001 | Lexus | GS430 | — | — | 4.3L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2001 | Toyota | Celica | — | — | 1.8L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2000 | Lexus | GS400 | — | — | 4.0L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2000 | Lexus | GS400 | — | — | 4.0L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2000 | Toyota | Celica | — | — | 1.8L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2000 | Toyota | Sienna | — | — | 3.0L | V6 | GAS | Downstream Front | Non Calif-ESV No Calif-ESV Downstream Front; Walker Products Aftermarket |
| 2000 | Toyota | Sienna | — | — | 3.0L | V6 | GAS | Downstream Front | Downstream front oxygen sensor for California emissions vehicles.; Walker Products Aftermarket |
| 2000 | Toyota | Sienna | — | — | 3.0L | V6 | GAS | Downstream Front | Non Calif-ESV; Downstream; Front; Walker Products Aftermarket |
| 1999 | Lexus | GS400 | — | — | 4.0L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 1999 | Lexus | GS400 | — | — | 4.0L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 1999 | Toyota | Sienna | — | — | 3.0L | V6 | GAS | Downstream Front | Non Calif-ESV No Calif-ESV Downstream Front; Walker Products Aftermarket |
| 1999 | Toyota | Sienna | — | — | 3.0L | V6 | GAS | Downstream Front | Downstream front oxygen sensor for California emissions vehicles.; Walker Products Aftermarket |
| 1999 | Toyota | Sienna | — | — | 3.0L | V6 | GAS | Downstream Front | Non Calif-ESV; Downstream; Front; Walker Products Aftermarket |
| 1998 | Lexus | GS400 | — | — | 4.0L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 1998 | Lexus | GS400 | — | — | 4.0L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 1998 | Toyota | Sienna | — | — | 3.0L | V6 | GAS | Downstream Front | Downstream front oxygen sensor required.; Walker Products Aftermarket |
| 1997 | Toyota | Celica | — | — | 1.8L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 1996 | Toyota | Celica | — | — | 1.8L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
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