Walker 350-34041 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

Walker 350-34041 Oxygen Sensor for Volvo and Land Rover

Walker Products 350-34041 is a heated, specific-fit oxygen sensor engineered as an OE-style replacement for select Volvo and Land Rover applications. It is built for downstream and intermediate positions where accurate exhaust feedback is needed for proper ECU operation, emissions control, and fuel management.

Key Features

• Heated oxygen sensor for faster operating response
• Specific-fit design for the listed vehicle applications
• Threaded mounting type with 18.0 mm thread diameter
• 4-wire configuration with 20-gauge wiring
• 16.26 in. wiring harness length and 19.8 in. overall length
• Radiused polygon male connector for vehicle-specific connection
• Fits downstream and intermediate sensor locations on select Volvo S60, V60, XC60, S80, XC70, XC90, S40, V50, V70, C30, and Land Rover LR2, LR3, LR4, Range Rover, and Range Rover Sport applications

Product Details

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors built for original equipment replacement needs. Part number 350-34041 is application-specific, meaning the sensor position, connector style, and electrical configuration are matched to the listed vehicle fitment. This helps maintain the diagnostic feedback the ECU expects from the exhaust system. Walker Products has supplied engine management components since 1946 and manufactures to automotive ISO 9001/TS 16949 standards.

This part cross-references no listed alternate part numbers in the provided data.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Poor fuel economy caused by incorrect exhaust feedback
• Rough engine operation from inaccurate air-fuel monitoring
• Elevated exhaust emissions from a failing downstream sensor
• Fault codes stored in the ECU for sensor or related system issues

Installation Notes

Verify the sensor position before installation, especially on Volvo XC60, XC70, S80, and Land Rover LR2, LR3, LR4, Range Rover, and Range Rover Sport models where left, right, downstream, and intermediate locations are listed separately. Inspect the sensor, wiring harness, and connector for physical damage before replacement. Confirm thread size, connector shape, and harness routing match the original unit.

Quality Assurance

Walker Products manufactures this oxygen sensor as an OE replacement for the specified applications and builds it under automotive ISO 9001/TS 16949 quality standards.