Walker 350-34117 Oxygen Sensor

Walker Oxygen Sensor for Land Rover Discovery and Range Rover

Walker Products 350-34117 is a heated oxygen sensor built as a specific-fit OE replacement for select Land Rover applications. It is engineered to deliver the diagnostic feedback the ECU expects, helping maintain proper engine management on vehicles such as the Land Rover Discovery and Range Rover.

Key Features

• Heated oxygen sensor for faster operating response
• Specific-fit design for the listed Land Rover applications
• 4-wire configuration with 20-gauge wiring
• Threaded mounting with 12.0 mm thread diameter
• Radiused polygon male connector for vehicle-specific connection
• Wiring harness length: 18.03 in.; overall length: 21.57 in.
• Walker Products Aftermarket line for engine management and emissions control

Product Details

The Walker Products Aftermarket line focuses on engine management and oxygen/air-fuel sensors engineered for OE-style replacement use. Part number 350-34117 is made for the specified fitment position and is intended to provide the ECU with the correct sensor feedback for emissions and fuel-control operation. For Land Rover Discovery and Range Rover models, accurate oxygen sensor performance is important for maintaining drivability, fuel economy, and emissions system operation.

This part cross-references select OE-style oxygen sensor applications for the same vehicle positions. Walker Products 350-34117 is a direct-fit solution for the listed upstream and downstream locations on compatible Land Rover Discovery and Range Rover models.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Poor engine running caused by incorrect air-fuel feedback
• Increased fuel consumption from inaccurate exhaust readings
• Higher exhaust emissions from a failing sensor
• Fault codes stored in the ECU for sensor or related system issues

Installation Notes and Tips

• Verify the exact position before ordering: upstream right, upstream left, downstream right, or downstream left.
• Confirm vehicle notes, including 1996-1999 Discovery without advanced evaporative loss system and 1997 Range Rover up to chassis VA350101.
• Inspect the sensor wiring harness and connector for physical damage before installation.
• Check the exhaust bung threads and mounting surface for corrosion or contamination.
• Use the vehicle’s service information for proper sensor routing and torque specifications.

Quality Assurance

Walker Products has manufactured engine management components since 1946 and operates as an ISO 9001/TS 16949 certified company. The 350-34117 is built to Walker’s application-specific standards for fitment, connector style, and ECU feedback requirements.

Compatible With

• Fits 1996-1999 Land Rover Discovery, upstream right.
• Fits 1996-1999 Land Rover Discovery, upstream left.
• Fits 1996-1999 Land Rover Discovery, downstream right.
• Fits 1996-1999 Land Rover Discovery, downstream left.
• Fits 1997 Land Rover Range Rover, upstream right.
• Fits 1997 Land Rover Range Rover, upstream left.
• Fits 1997 Land Rover Range Rover, downstream right.
• Fits 1997 Land Rover Range Rover, downstream left.
• Fits 1995-1996 Land Rover Range Rover, upstream right.
• Fits 1995-1996 Land Rover Range Rover, upstream left.
• Fits 1996 Land Rover Range Rover, downstream right.
• Fits 1996 Land Rover Range Rover, downstream left.