Walker 250-23011 Oxygen Sensor - Upstream

Overview of Walker 250-23011 Oxygen Sensor

The Walker 250-23011 oxygen sensor is designed specifically for select Buick, Chevrolet, GMC, Oldsmobile, and Pontiac models. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance by providing precise air-fuel mixture data to the vehicle's engine control unit.

• Heated sensor type for faster response times
• Specific fit for multiple GM vehicles including Chevrolet Tahoe and GMC Yukon
• 10.35-inch wiring harness length with 20 gauge wire
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon female connector with 3 wires
• Overall length of 13.9 inches for proper installation

Walker Products OE Brand Line Details

This oxygen sensor is part of the Walker Products OE line, which focuses on delivering original equipment quality and fitment. Walker Products OE parts are engineered to meet or exceed factory specifications, ensuring reliable performance and compatibility with the intended vehicle applications. The 250-23011 sensor maintains the standards expected from OE replacement parts, providing a direct fit solution for emission control systems.

Product Description and Attributes

The Walker 250-23011 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving emissions control and fuel efficiency. It includes a 10.35-inch wiring harness with 20 gauge wires, designed to handle the electrical requirements of the sensor. The sensor has a radiused polygon female connector with three wires, ensuring secure and proper electrical connections. Its threaded mounting type with an 18.0 mm thread diameter allows for straightforward installation in the exhaust system. The overall length of 13.9 inches accommodates the specific fitment needs of various GM vehicles.

Compatible Vehicles and Applications

• Buick Park Avenue, Regal
• Chevrolet Astro, C1500, C1500 Suburban, C2500, C2500 Suburban, Lumina APV, Safari, Silhouette, Tahoe
• GMC G10, G20, G30, K1500, K1500 Suburban, K2500, K2500 Suburban, Yukon
• Oldsmobile models
• Pontiac Trans Sport

Common Issues Addressed by This Oxygen Sensor

• 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 hesitation or rough idling caused by sensor malfunction
• Reduced engine performance linked to inaccurate oxygen sensor data

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Use the correct tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector type matches the vehicle harness before installation. The 250-23011 sensor’s specific fitment requires proper alignment of the radiused polygon female connector. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper operation.

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 the 250-23011 oxygen sensor helps maintain compliance with emissions regulations and supports the longevity of the vehicle’s emission control system.