Walker 250-24321 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

Overview of Walker Products OE Oxygen Sensor 250-24321

The Walker Products OE Oxygen Sensor 250-24321 is designed specifically for select Chevrolet, Oldsmobile, and Pontiac vehicles. This heated oxygen sensor ensures accurate emissions control and optimal engine performance for models like the Chevrolet Corvette and Pontiac Grand Am.

• Heated oxygen sensor with 4-wire design for precise readings
• Specific fit for Chevrolet Alero, Oldsmobile Classic, Pontiac Grand Am, and Corvette
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector for secure wiring harness connection
• Wiring harness length of 40.87 inches and overall length of 44.41 inches
• 20 gauge wire for durability and reliable signal transmission

Detailed Product Description

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. The 250-24321 oxygen sensor is a heated sensor featuring a 4-wire configuration, which includes two wires for the heater circuit and two for the sensor signal. This design allows the sensor to reach operating temperature quickly, improving emissions control and fuel efficiency. The sensor’s threaded mounting type with an 18.0 mm diameter ensures a secure and proper fit in the exhaust system. The radiused polygon male connector provides a reliable electrical connection, minimizing the risk of wiring issues. With a wiring harness length of 40.87 inches and an overall length of 44.41 inches, this sensor is engineered for precise installation in compatible vehicles.

Compatible Vehicles and Applications

• Chevrolet Alero
• Oldsmobile Classic
• Pontiac Grand Am
• Chevrolet Corvette

This oxygen sensor is designed specifically for these models, ensuring proper fitment and function within their emission control systems.

Common Issues Addressed by Oxygen Sensor 250-24321

• Check engine light triggered by faulty oxygen sensor readings
• Poor fuel economy due to incorrect air-fuel mixture
• Increased emissions and failed emissions tests
• Engine performance problems such as rough idling or hesitation
• Heater circuit failure causing delayed sensor response

Installation Notes and Tips

When installing the Walker Products OE oxygen sensor 250-24321, ensure the engine and exhaust system are cool to avoid burns. Use the correct tools to avoid damaging the sensor or threads. Verify the connector matches the vehicle’s wiring harness and secure the connection firmly. It is recommended to replace the sensor with the engine off and to clear any diagnostic trouble codes after installation to reset the system.

Quality Assurance and Warranty

Walker Products OE parts are manufactured to meet original equipment standards, providing reliable performance and durability. The 250-24321 oxygen sensor undergoes rigorous testing to ensure compatibility and function. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship, supporting long-term use in Chevrolet, Oldsmobile, and Pontiac vehicles.