Walker 250-21001 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Overview of Walker Products OE Oxygen Sensor 250-21001

The Walker Products OE Oxygen Sensor 250-21001 is designed for specific vehicle applications, including Buick, Chevrolet, GMC, Jeep, and more. This non-heated oxygen sensor features a threaded mounting type and a radiused polygon female connector, ensuring precise fitment and reliable performance.

• Wiring harness length: 12.13 inches
• Wire gauge measurement: 20 gauge
• Sensor type: Non heated
• Specific fit for select makes and models
• Connector shape: Radiused polygon, female gender
• Thread diameter: 18.0 mm
• Overall length: 15.67 inches
• Mounting type: Threaded
• Single wire configuration

Detailed Product Description

This Walker Products OE oxygen sensor (part number 250-21001) is engineered to meet the exact specifications of various GM and other domestic and import vehicles. The sensor’s non-heated design is suitable for applications where a heated sensor is not required, providing accurate oxygen level readings to the engine control unit. The 20-gauge wire and 12.13-inch wiring harness length allow for proper connection and signal transmission. Its radiused polygon female connector ensures a secure and precise fit, reducing the risk of electrical issues. The threaded mounting type with an 18.0 mm thread diameter facilitates straightforward installation in compatible exhaust systems.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that match or exceed factory specifications. This oxygen sensor is part of that line, ensuring compatibility and performance for vehicles such as the Chevrolet Camaro, GMC Sierra, Jeep Cherokee, and Buick LeSabre. The OE line emphasizes durability and fitment accuracy, making it a reliable choice for emission control sensor replacements.

Compatible Vehicles and Common Applications

• Buick LeSabre, Century, and Regal
• Chevrolet Camaro, Impala, and Suburban
• GMC Sierra and Yukon
• Jeep Cherokee and Wrangler
• Cadillac DeVille and Eldorado

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
• Rough engine idle or hesitation during acceleration
• Failed emissions tests caused by sensor malfunction
• Increased exhaust emissions and pollution

Installation Notes and Tips

• Ensure the vehicle is cool before sensor removal to avoid burns
• Use appropriate oxygen sensor socket for threaded installation
• Verify connector type matches the vehicle harness (radiused polygon, female)
• Do not over-tighten; torque to manufacturer specifications
• Inspect wiring for damage before installation

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards for emission control components. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. This oxygen sensor is designed to provide consistent performance and durability when installed according to vehicle specifications.