Walker 250-23083 Oxygen Sensor - Downstream, Upstream, Upstream Left or Upstream Right

Overview of Walker Products OE Oxygen Sensor 250-23083

The Walker Products OE Oxygen Sensor 250-23083 is designed specifically for Subaru Impreza and Legacy models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases precisely.

• Heated oxygen sensor with 3-wire configuration
• Specific fit for Subaru Impreza and Legacy
• Threaded mounting type with 18.0 mm thread diameter
• 15.67 inches wiring harness length and 19.21 inches overall length
• Radiused polygon male connector for secure connection
• 20 gauge wire for reliable signal transmission

Detailed Product Features and Specifications

This oxygen sensor from Walker Products OE features a heated sensor type that allows for faster warm-up times and improved emissions monitoring. The 3-wire design supports efficient sensor operation and signal accuracy. With a wiring harness length of 15.67 inches and an overall length of 19.21 inches, this sensor fits precisely in the exhaust system of Subaru Impreza and Legacy vehicles. The threaded mounting type with an 18.0 mm diameter ensures a secure and proper installation. The connector is a radiused polygon shape with a male gender, designed to match the factory wiring harness for a direct fit without modifications. The 20 gauge wire measurement supports durability and consistent electrical performance.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. This oxygen sensor is engineered to provide reliable emissions control and maintain engine efficiency, aligning with the standards expected from OE replacement components. Using parts from the Walker Products OE line helps ensure compatibility and performance for Subaru vehicles requiring precise sensor operation.

Common Applications and Problem Resolution

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Resolves check engine light issues related to oxygen sensor faults
• Improves fuel efficiency by providing correct exhaust gas readings
• Reduces harmful emissions by maintaining proper sensor function
• Prevents engine performance problems caused by faulty sensor signals

Installation Notes and Tips

Installation requires removing the old oxygen sensor and threading the Walker 250-23083 sensor into the exhaust manifold or pipe. Ensure the connector matches the factory harness to avoid wiring issues. Use anti-seize compound on the threads if recommended by the vehicle manufacturer. Verify the sensor wiring is routed away from hot exhaust components to prevent damage. Proper torque specifications should be followed to avoid sensor or exhaust leaks.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards for durability and performance. This part number 250-23083 undergoes rigorous testing to ensure reliable operation in Subaru Impreza and Legacy models. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to support long-term use.