Walker 250-23005 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Overview of Walker Products OE Oxygen Sensor 250-23005

The Walker Products OE 250-23005 oxygen sensor is designed specifically for select Buick, Chevrolet, GMC, Oldsmobile, and Pontiac vehicles. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the engine management system.

• Heated sensor type for faster response times
• Specific fit for models including Chevrolet Blazer, GMC Yukon, Pontiac Grand Prix, and more
• Threaded mounting type with an 18.0 mm thread diameter
• 10.35-inch wiring harness length with 3 wires of 20 gauge
• Radiused polygon male connector for secure electrical connection
• Overall length of 13.9 inches for proper installation depth

Detailed Product Features and Specifications

This oxygen sensor from Walker Products OE features a heated sensor element that allows it to reach operating temperature quickly, improving emissions control efficiency. The sensor is designed with a 10.35-inch wiring harness and three 20-gauge wires, ensuring reliable signal transmission. Its radiused polygon male connector provides a secure and precise fit, reducing the risk of electrical issues. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation in compatible exhaust systems. The overall length of 13.9 inches accommodates proper placement within the exhaust stream for accurate readings.

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 consistent performance and durability, making it suitable for emission control systems in specific GM vehicles. The OE line emphasizes precise fitment and reliable operation, supporting vehicle emissions compliance and engine efficiency.

Compatible Vehicles and Common Applications

• Buick models such as Regal and Century
• Chevrolet models including Astro, Blazer, C1500, and Corvette
• GMC trucks and SUVs like Jimmy, Yukon, and Sierra series
• Oldsmobile Cutlass Supreme and Pontiac Grand Prix
• Other GM vehicles such as S10, Safari, and Lumina

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 data
• Increased emissions and failed emissions tests
• Engine hesitation or rough idling caused by sensor malfunction
• Reduced engine performance and drivability problems

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 install the new one with the 18.0 mm threaded mounting. Verify the radiused polygon male connector is securely connected to the vehicle wiring harness. Avoid twisting or damaging the 10.35-inch wiring harness during installation. After installation, clear any diagnostic trouble codes and verify sensor operation with a scan tool.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards for durability and performance. This part is designed to provide reliable emissions control and engine management data. Warranty coverage details should be confirmed with the product documentation or supplier, as they may vary by region and application.