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Walker 350-35029 Oxygen Sensor - Upstream, Upstream Left or Upstream Right
Overview of Walker Oxygen Sensor 350-35029
The Walker 350-35029 oxygen sensor is designed specifically for Audi A8 Quattro and Q7 models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle’s engine management system.
- Heated oxygen sensor type for faster response times
- Specific fit for Audi A8 Quattro and Q7
- 72.36 inches wiring harness length for flexible installation
- 20 gauge wire measurement with 5 wires for reliable signal transmission
- Radiused polygon male connector for secure connection
- Threaded mounting type with 18.0 mm thread diameter
- Overall length of 75.91 inches for proper fitment
Walker Products Aftermarket Line Details
The Walker Products Aftermarket line focuses on providing replacement emission control components that meet or exceed OEM specifications. The 350-35029 oxygen sensor is part of this line, offering a direct fit and reliable performance tailored to specific vehicle applications such as the Audi A8 Quattro and Q7. This ensures compatibility and durability in emission sensor replacements.
Technical Description and Attributes
This oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 5-wire configuration supports accurate signal transmission and heater control. The wiring harness length of 72.36 inches and overall length of 75.91 inches provide sufficient reach for installation in the engine bay. The radiused polygon male connector ensures a secure and precise connection, while the threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the exhaust system.
Applications and Problem Solving
- Restores accurate oxygen sensing for proper air-fuel mixture control
- Helps resolve engine performance issues related to faulty oxygen sensors
- Reduces emissions by ensuring correct sensor feedback to the ECU
- Prevents check engine light triggers caused by sensor failure
- Improves fuel economy by maintaining optimal combustion conditions
Installation Notes and Tips
When installing the Walker 350-35029 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. Confirm the connector shape and gender match the vehicle’s harness for a secure fit. Thread the sensor carefully to avoid cross-threading and tighten to manufacturer torque specifications. Verify sensor operation after installation by checking for error codes or engine performance.
Quality Assurance and Warranty
Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards for durability and performance. The 350-35029 part number undergoes rigorous testing to ensure reliable operation in emission control systems. Warranty coverage details should be confirmed with the product documentation or supplier, as they may vary by region.
| Brand | Walker |
| Part Number | 350-35029 |
| Position | Walker Products Aftermarket, Upstream Left |
| Connector Gender | Male |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 75.91 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 20 |
| Wire Quantity | 5 |
| Wiring Harness Length | 72.36 |
This part fits 14 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2010 | Audi | Q7 | 4.2L | V8 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2010 | Audi | Q7 | 4.2L | V8 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2009 | Audi | Q7 | 4.2L | V8 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2009 | Audi | Q7 | 4.2L | V8 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2008 | Audi | Q7 | 4.2L | V8 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2008 | Audi | Q7 | 4.2L | V8 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2007 | Audi | A8 Quattro | 6.0L | W12 | GAS | Upstream | Cyl 10-12, To Chassis/VIN #4E7017 000; Cil 10-12, al Chasis / VIN # 4E7017 000; Upstream; Cyl 10-12; Walker Products Aftermarket |
| 2007 | Audi | A8 Quattro | 6.0L | W12 | GAS | Upstream | Cyl 10-12, To Chassis/VIN #4E7017 000; Upstream; Cyl 10-12; Walker Products Aftermarket |
| 2007 | Audi | Q7 | 4.2L | V8 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2007 | Audi | Q7 | 4.2L | V8 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2006 | Audi | A8 Quattro | 6.0L | W12 | GAS | Upstream | Cyl 10-12; Cil 10-12; Upstream; Walker Products Aftermarket |
| 2006 | Audi | A8 Quattro | 6.0L | W12 | GAS | Upstream | Cyl 10-12; Upstream; Walker Products Aftermarket |
| 2005 | Audi | A8 Quattro | 6.0L | W12 | GAS | Upstream | Cyl 10-12; Cil 10-12; Upstream; Walker Products Aftermarket |
| 2005 | Audi | A8 Quattro | 6.0L | W12 | GAS | Upstream | Cyl 10-12; Upstream; Walker Products Aftermarket |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.