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Walker 350-34144 Oxygen Sensor
Overview of Walker Oxygen Sensor 350-34144
The Walker 350-34144 oxygen sensor is designed specifically for select Audi and Volkswagen models, including the A4, A6, Passat, and their Quattro variants. 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 with 4-wire configuration
- Specific fit for Audi and Volkswagen models such as A4, A6, Passat, RS4, S4, and S6
- Threaded mounting type with 18.0 mm thread diameter
- Radiused polygon male connector for secure electrical connection
- Wiring harness length of 21.97 inches and overall length of 25.51 inches
- Wire gauge measurement of 22 for reliable signal transmission
Detailed Product Features and Specifications
This Walker Products Aftermarket oxygen sensor (part number 350-34144) is engineered with a heated sensor element to provide faster response times and improved accuracy in emissions monitoring. The 4-wire design includes two wires for the heating element and two for the sensor signal, ensuring stable operation under various engine conditions. The sensor’s threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the exhaust system of compatible Audi and Volkswagen vehicles.
The connector features a radiused polygon shape with a male gender, designed to fit securely with the vehicle’s wiring harness. The wiring harness length of approximately 22 inches and overall sensor length of 25.51 inches provide adequate reach and flexibility for installation in the specified models. The 22-gauge wire ensures durability and consistent electrical performance.
Walker Products Aftermarket Line Information
The Walker Products Aftermarket line focuses on providing reliable emission control components that meet or exceed OEM specifications. This oxygen sensor is part of that line, offering a direct replacement solution tailored to specific vehicle applications. By maintaining strict quality standards, Walker Products Aftermarket supports proper engine function and emissions compliance for Audi and Volkswagen vehicles.
Common Applications and Problem Resolution
- Restores accurate oxygen sensing for improved fuel efficiency
- Resolves check engine light issues related to oxygen sensor faults
- Helps correct rough idling or engine hesitation caused by faulty sensors
- Supports emissions system compliance for passing vehicle inspections
- Prevents increased exhaust emissions due to sensor malfunction
Installation Notes and Tips
When installing the Walker 350-34144 oxygen sensor, ensure the vehicle is cooled down to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the exhaust threads. Verify the connector matches the radiused polygon male design for a secure fit. It is recommended to apply anti-seize compound on the threads to facilitate future removal. Confirm compatibility with your specific Audi or Volkswagen model before installation.
Quality Assurance and Warranty
Walker Products Aftermarket oxygen sensors undergo rigorous testing to meet industry standards for durability and performance. The 350-34144 part number is manufactured to provide consistent sensor output and reliable operation over time. Warranty coverage details should be confirmed with the product documentation or supplier, ensuring peace of mind with your purchase.
| Brand | Walker |
| Part Number | 350-34144 |
| Position | Walker Products Aftermarket, Upstream Front |
| Connector Gender | Male |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 25.51 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 22 |
| Wire Quantity | 4 |
| Wiring Harness Length | 21.97 |
This part fits 55 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2005 | Volkswagen | Passat | 2.8L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2005 | Volkswagen | Passat | 2.8L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2004 | Audi | A6 Quattro | 4.2L | V8 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2004 | Audi | A6 Quattro | 4.2L | V8 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2004 | Volkswagen | Passat | 2.8L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2004 | Volkswagen | Passat | 2.8L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2003 | Audi | A6 Quattro | 4.2L | V8 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2003 | Audi | A6 Quattro | 4.2L | V8 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2003 | Audi | S6 | 4.2L | V8 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2003 | Audi | S6 | 4.2L | V8 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2003 | Volkswagen | Passat | 2.8L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2003 | Volkswagen | Passat | 2.8L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2002 | Audi | A6 Quattro | 4.2L | V8 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2002 | Audi | A6 Quattro | 4.2L | V8 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2002 | Audi | RS4 | 2.7L | V6 | GAS | Upstream | Install upstream oxygen sensor for optimal performance.; Walker Products Aftermarket |
| 2002 | Audi | S4 | 2.7L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2002 | Audi | S4 | 2.7L | V6 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2002 | Audi | S6 | 4.2L | V8 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2002 | Audi | S6 | 4.2L | V8 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2002 | Volkswagen | Passat | 2.8L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2002 | Volkswagen | Passat | 2.8L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2001 | Audi | A4 | 2.8L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2001 | Audi | A4 | 2.8L | V6 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2001 | Audi | A4 Quattro | 2.8L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2001 | Audi | A4 Quattro | 2.8L | V6 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2001 | Audi | A6 | 2.8L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2001 | Audi | A6 | 2.8L | V6 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2001 | Audi | A6 Quattro | 4.2L | V8 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2001 | Audi | A6 Quattro | 4.2L | V8 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2001 | Audi | A6 Quattro | 2.8L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2001 | Audi | A6 Quattro | 2.8L | V6 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2001 | Audi | A6 Quattro | 2.7L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2001 | Audi | A6 Quattro | 2.7L | V6 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2001 | Audi | Allroad Quattro | 2.7L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2001 | Audi | Allroad Quattro | 2.7L | V6 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2001 | Audi | S4 | 2.7L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2001 | Audi | S4 | 2.7L | V6 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2001 | Volkswagen | Passat | 2.8L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2001 | Volkswagen | Passat | 2.8L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket |
| 2000 | Audi | A4 | 2.8L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2000 | Audi | A4 | 2.8L | V6 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2000 | Audi | A4 Quattro | 2.8L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2000 | Audi | A4 Quattro | 2.8L | V6 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2000 | Audi | A6 | 2.8L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2000 | Audi | A6 | 2.8L | V6 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2000 | Audi | A6 Quattro | 4.2L | V8 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2000 | Audi | A6 Quattro | 4.2L | V8 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2000 | Audi | A6 Quattro | 2.8L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2000 | Audi | A6 Quattro | 2.8L | V6 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2000 | Audi | A6 Quattro | 2.7L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2000 | Audi | A6 Quattro | 2.7L | V6 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2000 | Audi | S4 | 2.7L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2000 | Audi | S4 | 2.7L | V6 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket |
| 2000 | Volkswagen | Passat | 2.8L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket |
| 2000 | Volkswagen | Passat | 2.8L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; 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.