Walker 250-54043 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Overview of Walker Products OE Oxygen Sensor 250-54043

The Walker Products OE Oxygen Sensor 250-54043 is designed specifically for select Land Rover and Volvo models. This heated oxygen sensor ensures accurate emission control by monitoring exhaust gases and providing essential data to the engine management system.

• Heated sensor type for faster response times
• Specific fit for Land Rover LR2 and Volvo S60, S80, V90, XC90, and more
• 16.26-inch wiring harness length with 4 wires, 20 gauge
• Threaded mounting with 18.0 mm thread diameter
• Radiused polygon male connector for secure connection
• Overall length of 19.8 inches for proper installation

Detailed Product Description

This oxygen sensor from Walker Products OE is engineered to meet the exact specifications of various Land Rover and Volvo vehicles, including the LR2, S60 Cross Country, V70, XC40, and XC70 models. The heated sensor design allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. Featuring a 16.26-inch wiring harness and four 20-gauge wires, it provides reliable electrical connectivity. The radiused polygon male connector ensures a secure and precise fit, while the threaded mounting type with an 18.0 mm diameter allows for straightforward installation. The overall length of 19.8 inches accommodates the sensor’s placement within the exhaust system.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality emission control components. This oxygen sensor is part of that line, designed to match or exceed factory specifications for fit, form, and function. Using Walker Products OE parts helps maintain vehicle performance and compliance with emission standards for Land Rover and Volvo models.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper air-fuel mixture
• Helps resolve rough idling and engine hesitation
• Reduces increased emissions and failed emissions tests
• Prevents poor fuel economy caused by faulty sensors
• Eliminates check engine light codes related to oxygen sensor failure

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. Confirm the connector type matches the vehicle’s harness for a secure connection. Thread the sensor carefully to prevent cross-threading and torque to manufacturer specifications. 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 number 250-54043 undergoes rigorous testing to ensure reliable operation in emission control systems. Warranty coverage details should be confirmed with the product documentation or supplier.