Walker 250-54062 Oxygen Sensor - Upstream Left or Upstream Right

Walker Products OE Oxygen Sensor for Land Rover

Walker Products OE Part Number 250-54062 is a heated oxygen sensor built for specific upstream applications on select Land Rover LR3, Range Rover, and Range Rover Sport models. It is engineered as an OE-style replacement that provides the ECU with the feedback needed for proper fuel control and emissions monitoring.

Key Features

• Heated oxygen sensor for faster operating response
• Specific fitment for upstream left and upstream right positions
• 4-wire design with 20-gauge wiring
• Radiused polygon male connector for application-specific connection
• Threaded mounting with 18.0 mm thread diameter
• Wiring harness length: 9.37 in.; overall length: 12.91 in.

Product Details

Walker Products OE focuses on original-equipment replacement sensors for vehicle-specific applications. Part number 250-54062 is matched to the correct fitment position and wiring configuration so the engine control unit can receive accurate exhaust feedback. This matters on Land Rover LR3, Range Rover, and Range Rover Sport models where upstream sensor data is used to manage air-fuel ratio, fuel delivery, and emissions performance.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Check engine or malfunction indicator light related to oxygen sensor faults
• Rough engine operation caused by incorrect air-fuel feedback
• Increased fuel consumption from inaccurate sensor readings
• Elevated exhaust emissions from poor mixture control
• Stored ECU fault codes tied to the upstream oxygen sensor circuit

Installation Notes

Compatible With 2005-2009 Land Rover LR3, upstream right or upstream left; 2006-2009 Land Rover Range Rover, upstream right or upstream left; and 2006-2009 Land Rover Range Rover Sport, upstream right or upstream left. Confirm the connector shape, thread size, and sensor position before installation. Inspect the sensor wiring harness and connector for damage, since physical wear can shorten service life and affect readings.

Quality Assurance

Walker Products has produced engine management and oxygen sensor components since 1946 and operates under Automotive ISO9001/TS 16949 certification. The Walker Products OE line is built for application-specific replacement use and diagnostic feedback requirements.