Walker 250-24202 Oxygen Sensor - Downstream Left

Overview of Walker 250-24202 Oxygen Sensor

The Walker 250-24202 oxygen sensor is designed specifically for select Chevrolet and GMC trucks and SUVs. This heated oxygen sensor provides accurate emissions data to help maintain engine performance and meet emission standards.

• Heated sensor type for faster response times
• Specific fit for Chevrolet and GMC models including Sierra and Silverado series
• 19.21-inch wiring harness length with 4 wires of 20 gauge
• Radiused polygon male connector for secure connection
• Threaded mounting with 18.0 mm thread diameter
• Overall length of 22.76 inches for proper installation

Detailed Product Description

This Walker Products OE oxygen sensor (part number 250-24202) is engineered to meet the exact specifications of Chevrolet and GMC vehicles such as the Sierra 1500 HD, Sierra 2500, Silverado 1500 HD, and Yukon XL 2500. The heated sensor design allows for quicker warm-up times, improving fuel efficiency and reducing emissions sooner after engine start. Featuring a 19.21-inch wiring harness and 4 wires with 20 gauge measurement, this sensor ensures reliable electrical connectivity. The radiused polygon male connector and threaded mounting type with an 18.0 mm thread diameter provide a secure and precise fit, minimizing installation issues. The overall length of 22.76 inches supports proper placement within the exhaust system.

Walker Products OE Brand Line

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. This oxygen sensor is part of that line, ensuring compatibility and performance for emission control systems in Chevrolet and GMC trucks and SUVs. Using Walker Products OE parts helps maintain vehicle emissions compliance and engine management accuracy.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Helps resolve rough idling or engine hesitation caused by faulty sensors
• Reduces increased emissions and potential failed emissions tests
• Prevents check engine light triggers related to oxygen sensor faults
• Improves fuel economy by providing correct feedback to the engine control unit

Installation Notes and Tips

Ensure the vehicle is cool before removing the old oxygen sensor to avoid burns. Use the correct oxygen sensor socket or wrench to prevent damage to the sensor or wiring. Verify the connector shape and gender match the vehicle harness before installation. Thread the sensor carefully to avoid cross-threading and torque to manufacturer specifications. Inspect wiring for any damage or corrosion during replacement.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards for durability and performance. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain emission system integrity and supports vehicle compliance with environmental regulations.