Walker 250-24654 Oxygen Sensor - Upstream

Overview of Walker Products OE Oxygen Sensor 250-24654

The Walker Products OE Oxygen Sensor 250-24654 is designed specifically for select Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated sensor type for faster response times
• Specific fit for models including Buick Rainier, Chevrolet Trailblazer, GMC Envoy, and more
• 16.46-inch wiring harness length with 4 wires of 20 gauge
• Radiused polygon female connector for secure connection
• Threaded mounting with 18.0 mm thread diameter
• Overall length of 20.0 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 fuel efficiency and reducing emissions. The 16.46-inch wiring harness with four 20-gauge wires provides reliable electrical connectivity, while the radiused polygon female connector ensures a precise and secure fit. The sensor is designed with a threaded mounting type and an 18.0 mm thread diameter, making installation straightforward and compatible with the specified vehicle models. The overall length of 20.0 inches accommodates proper placement within the exhaust system.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed OEM specifications. This oxygen sensor is part of that line, ensuring compatibility and performance consistent with factory-installed components. Choosing Walker Products OE means selecting a sensor engineered for durability and precise emissions control tailored to specific vehicle applications.

Compatible Vehicles and Common Applications

• Buick Rainier and 9-7x
• Chevrolet Trailblazer, Trailblazer EXT, Colorado, and Canyon
• GMC Envoy, Envoy XL, Envoy XUV, and Bravada
• Isuzu Ascender
• Oldsmobile and Saab models as specified

Issues Addressed by This Oxygen Sensor

• Incorrect air-fuel mixture readings causing poor fuel economy
• Check engine light triggered by faulty oxygen sensor signals
• Increased emissions due to sensor malfunction
• Engine performance problems such as rough idling or hesitation
• Failed emissions tests related to sensor accuracy

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 connector matches the radiused polygon female type to avoid wiring issues. Properly route the 16.46-inch wiring harness to prevent damage or interference with moving parts. After installation, clear any diagnostic trouble codes and perform a test drive to confirm sensor operation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. This part number 250-24654 is backed by Walker's quality assurance processes. Please refer to Walker's official warranty policy for specific coverage details.