Walker 350-64077 Oxygen Sensor - Upstream Left or Upstream Right

Walker 350-64077 Oxygen Sensor for Land Rover

Walker Products 350-64077 is a heated oxygen sensor built as a specific-fit OE-style replacement for select Land Rover applications. It is engineered for upstream right and upstream left positions on the 2010-2013 Land Rover LR4, 2010-2013 Land Rover Range Rover Sport, and 2010-2012 Land Rover Range Rover.

Key Features

• Heated oxygen sensor for faster operating response
• Specific fitment for the listed Land Rover applications
• 4-wire design with 20-gauge wiring
• Threaded mounting with 18.0 mm thread diameter
• Radiused polygon male connector for application-specific connection
• Wiring harness length: 8.39 in.; overall length: 11.93 in.

Product Details

The Walker Products Aftermarket line focuses on engine management and oxygen/air-fuel sensors developed for direct replacement use. Part number 350-64077 is built for the ECU feedback expected from the original sensor location, helping maintain proper exhaust monitoring on the Land Rover LR4, Range Rover Sport, and Range Rover platforms listed above. Walker Products has supplied engine management components since 1946 and manufactures to automotive ISO 9001/TS 16949 standards.

This part cross-references Bosch (e.g., 15717) for the same application.

What This Sensor Helps Address

• Check engine light related to upstream oxygen sensor faults
• Poor fuel economy caused by inaccurate exhaust feedback
• Rough engine operation from incorrect air-fuel correction
• Higher exhaust emissions from a failing oxygen sensor
• Stored ECU fault codes tied to the affected sensor circuit

Installation Notes

Install 350-64077 in the upstream right or upstream left oxygen sensor position only for the listed Land Rover applications. Before replacement, inspect the sensor wiring harness and connector for heat damage, abrasion, or broken terminals, since physical damage can shorten sensor life and affect signal quality. Confirm thread size, connector shape, and harness length match the original unit before installation.

Quality Assurance

Walker Products manufactures this oxygen sensor as an application-specific replacement part and backs its engine management catalog with ISO 9001/TS 16949 quality systems.