Walker 350-34164 Oxygen Sensor - Upstream Left or Upstream Right

Walker Oxygen Sensor for Land Rover Freelander

Walker Products 350-34164 is a heated oxygen sensor built as a specific-fit OE replacement for select Land Rover Freelander applications. It is engineered to provide the ECU with the exhaust feedback needed for proper fuel control and emissions monitoring.

Key Features

• Heated oxygen sensor design for faster operating response
• Specific fitment for the listed Land Rover Freelander positions
• Threaded mounting type with 18.0 mm thread diameter
• 4-wire configuration with 22-gauge wiring
• Radiused polygon female connector for application-specific connection
• Wiring harness length: 18.43 in.; overall length: 21.97 in.

Product Details

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors developed as OE-style replacements for a wide range of vehicles. Part number 350-34164 is built for the specified fitment positions on the 2005-2006 Land Rover Freelander, including upstream rear, upstream right, and upstream left applications. For buyers searching for a 2005 Land Rover Freelander upstream oxygen sensor or a 2006 Land Rover Freelander upstream rear oxygen sensor, this part is matched to the listed vehicle and position data.

Walker Products has supplied engine management and fuel system components since 1946, and its sensor line is backed by ISO 9001/TS 16949 manufacturing standards. The 350-34164 oxygen sensor is intended to restore accurate exhaust feedback to the ECU when the original sensor is worn, contaminated, or electrically damaged. This part number 350-34164 is also a direct search match for shoppers comparing Walker 350-34164 against OE replacement oxygen sensors for Land Rover Freelander service.

What It Helps Address

• Check engine light or malfunction indicator light related to oxygen sensor faults
• Poor engine performance caused by incorrect air-fuel feedback
• Increased fuel consumption from inaccurate exhaust readings
• Higher exhaust emissions from a degraded heated oxygen sensor
• Fault codes stored in the ECU for the affected sensor circuit

Installation Notes

Verify the sensor position before ordering: Fits 2006 Land Rover Freelander, upstream rear; Fits 2005 Land Rover Freelander, upstream right; Fits 2005 Land Rover Freelander, upstream left. Inspect the sensor, wiring harness, and connector for physical damage before installation, since damaged wiring can shorten sensor life and affect signal quality. Confirm the threaded mounting location and connector shape match the original unit before replacement.

Quality Assurance

Walker Products manufactures this sensor as an OE replacement application part for the listed Land Rover Freelander fitments. The brand’s sensor line is produced under ISO 9001/TS 16949 quality systems and supported by long-running engine management expertise.