Walker 250-21011 Oxygen Sensor - Upstream

Overview of Walker Products OE Oxygen Sensor 250-21011

The Walker Products OE Oxygen Sensor 250-21011 is designed for specific vehicle applications including Audi, Jaguar, Nissan, Saab, Subaru, Volkswagen, and Volvo models. This non-heated oxygen sensor features a 20-inch wiring harness and a radiused polygon female connector, ensuring precise fit and reliable emission control performance.

• Wiring harness length: 20.0 inches
• Wire gauge measurement: 20
• Sensor type: Non heated
• Specific fit for select vehicle models
• Connector shape: Radiused polygon, female gender
• Thread diameter: 18.0 mm
• Overall length: 23.54 inches
• Mounting type: Threaded
• Single wire configuration

Detailed Product Description

This oxygen sensor from Walker Products OE is engineered to meet the exact specifications required by various European and Japanese vehicles such as the Audi 4000 Quattro, Jaguar XJ6, Nissan D21, Saab 900, Subaru Standard, Volkswagen Golf, Jetta, Rabbit Convertible, and Volvo models. The non-heated sensor design is suitable for applications where heated sensors are not required, providing accurate oxygen level readings to the engine control unit (ECU) for optimal fuel mixture adjustments.

The sensor’s 20-inch wiring harness and 20-gauge wire ensure durability and ease of installation, while the radiused polygon female connector guarantees a secure and precise connection. The threaded mounting type with an 18 mm thread diameter allows for straightforward replacement and compatibility with the original equipment mounting points.

Applications and Common Issues Addressed

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces harmful emissions by providing accurate oxygen level data
• Resolves engine performance issues related to faulty oxygen sensors
• Prevents check engine light triggers caused by sensor failure
• Improves fuel economy by enabling precise engine tuning

Installation Notes and Tips

When installing the Walker Products OE oxygen sensor 250-21011, ensure the vehicle is compatible with a non-heated sensor type. Verify the connector shape and gender match the original sensor to avoid connection issues. Use appropriate tools to remove the old sensor and thread the new sensor carefully to prevent damage to the mounting threads. It is recommended to inspect the wiring harness for any damage before installation.

Quality Assurance and Warranty

Walker Products OE is a recognized product line known for meeting original equipment standards. The 250-21011 oxygen sensor undergoes rigorous quality control to ensure reliable performance and durability. While specific warranty details are not provided here, Walker Products OE parts typically come with manufacturer-backed warranties that cover defects in materials and workmanship.