Walker 250-54072 Oxygen Sensor - Upstream Left or Upstream Right

Walker Products OE Oxygen Sensor for Land Rover

Walker Products OE 250-54072 is a heated oxygen sensor built for specific vehicle applications and exact mounting positions. It is engineered to provide the ECU with the feedback needed for proper fuel control and emissions monitoring on select Land Rover LR4, Range Rover Sport, and Range Rover models.

For drivers diagnosing a check engine light, poor fuel economy, or elevated exhaust emissions, this oxygen sensor is a direct-fit replacement for the upstream left or upstream right location on covered applications. Walker Products OE focuses on OE-style fitment and application-specific sensor design.

Key Features

• Part number: 250-54072
• Heated oxygen sensor for upstream placement
• Specific fit design for confirmed Land Rover applications
• Threaded mounting type with 18.0 mm thread diameter
• 4-wire configuration with 20-gauge wiring
• Radiused polygon male connector
• Wiring harness length: 8.39
• Overall length: 11.93

Product Details

Walker Products OE 250-54072 is designed as an OE replacement oxygen sensor for vehicles that rely on accurate exhaust feedback to manage air-fuel ratio and emissions performance. The heated sensor design helps the ECU receive faster operating feedback after startup, which is important for drivability and emissions control. This part number is built for the specified application and position, including upstream left and upstream right locations on select Land Rover LR4, Range Rover Sport, and Range Rover models.

Walker Products OE is the brand line focused on original-equipment-style replacement sensors and engine management components. The line is built around application-specific fitment, connector style, and sensor position so the replacement matches the vehicle’s diagnostic requirements.

This part cross-references no listed interchange numbers for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Poor fuel economy caused by incorrect air-fuel feedback
• Rough running or hesitation from inaccurate exhaust readings
• Elevated exhaust emissions
• Fault codes stored in the ECU for upstream sensor circuits

Installation Notes

• Compatible With 2010-2013 Land Rover LR4, upstream right.
• Compatible With 2010-2013 Land Rover LR4, upstream left.
• Compatible With 2010-2013 Land Rover Range Rover Sport, upstream right.
• Compatible With 2010-2013 Land Rover Range Rover Sport, upstream left.
• Compatible With 2010-2012 Land Rover Range Rover, upstream right.
• Compatible With 2010-2012 Land Rover Range Rover, upstream left.

Before replacement, inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion. Confirm the upstream position and connector orientation before installation to ensure the replacement matches the vehicle’s original sensor layout.

Quality Assurance

Walker Products has produced engine management and oxygen sensor components since 1946 and operates with ISO 9001 / TS 16949 certification. The 250-54072 is manufactured for specific application fitment and diagnostic feedback requirements.