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Walker 350-34073 Oxygen Sensor - Downstream Left or Downstream Right
Overview of Walker Oxygen Sensor 350-34073 for Audi A8 Quattro
The Walker 350-34073 oxygen sensor is designed specifically for the Audi A8 Quattro, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector for secure installation.
- Heated oxygen sensor for accurate emissions monitoring
- Specific fit for Audi A8 Quattro models
- Threaded mounting with 18.0 mm thread diameter
- 61.34 inches wiring harness length with 4 wires of 22 gauge
- Radiused polygon male connector for reliable connection
- Overall length of 64.88 inches for proper fitment
Detailed Features and Specifications
This Walker Products Aftermarket oxygen sensor (part number 350-34073) is engineered with a heated sensor element to provide faster response times and improved fuel efficiency. The sensor includes a 61.34-inch wiring harness with four 22-gauge wires, allowing for stable electrical signals and compatibility with the vehicle’s engine control unit. The radiused polygon male connector ensures a secure and precise connection, reducing the risk of electrical faults. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the exhaust system of the Audi A8 Quattro.
Walker Products Aftermarket Line Information
The Walker Products Aftermarket line focuses on delivering reliable emission control components that meet or exceed OEM specifications. This oxygen sensor is part of that line, providing a direct replacement solution tailored for specific vehicle applications like the Audi A8 Quattro. The product line emphasizes durability and precise fitment to maintain vehicle emissions compliance and engine performance.
Common Applications and Problem Resolution
- Restores accurate oxygen level readings for proper air-fuel mixture
- Helps resolve check engine light issues related to oxygen sensor faults
- Improves fuel economy by ensuring correct sensor feedback
- Reduces harmful emissions by maintaining proper combustion control
- Prevents engine performance problems caused by faulty sensors
Installation Notes and Tips
When installing the Walker 350-34073 oxygen sensor on an Audi A8 Quattro, ensure the threaded mounting hole is clean and free of debris. Use anti-seize compound on the threads if recommended by the vehicle manufacturer to prevent seizing. Connect the radiused polygon male connector firmly to avoid electrical connection issues. Verify wiring harness routing to prevent damage from heat or moving parts.
Quality Assurance and Warranty
Walker Products Aftermarket oxygen sensors undergo rigorous testing to meet emission control standards and provide reliable operation. The 350-34073 part number is manufactured to precise specifications for the Audi A8 Quattro. Warranty coverage details should be confirmed with the product documentation or supplier, ensuring confidence in product durability and performance.
| Brand | Walker |
| Part Number | 350-34073 |
| Position | Walker Products Aftermarket, Downstream Left |
| Connector Gender | Male |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 64.88 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 22 |
| Wire Quantity | 4 |
| Wiring Harness Length | 61.34 |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2003 | Audi | A8 Quattro | 4.2L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2003 | Audi | A8 Quattro | 4.2L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2002 | Audi | A8 Quattro | 4.2L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2002 | Audi | A8 Quattro | 4.2L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products Aftermarket |
| 2001 | Audi | A8 Quattro | 4.2L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2001 | Audi | A8 Quattro | 4.2L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; 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.