Walker 350-34683 Oxygen Sensor - Downstream

Walker 350-34683 Oxygen Sensor Overview

Walker Products 350-34683 is a heated downstream oxygen sensor built as a specific-fit OE replacement for select Jaguar and Land Rover applications. It is engineered to provide the ECU with the feedback needed for proper emissions monitoring and fuel control on the listed vehicles.

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors for exact application fitment. For drivers servicing a Jaguar F-Pace, Jaguar XE, Jaguar XF, or Land Rover Range Rover Velar, this sensor is matched to the required downstream position and connector configuration.

Key Features

• Heated oxygen sensor for downstream placement
• Specific-fit design for the listed vehicle applications
• 4-wire configuration with male connector
• 18.00 mm thread diameter
• 25.12 in. wiring harness length and 28.66 in. overall length
• Built for ECU feedback on emissions-related systems

Fitment and Application Details

This part number, 350-34683, is listed for downstream oxygen sensor service on 2014-2020 Land Rover Range Rover Evoque, 2015-2017 Land Rover Discovery Sport, 2018-2020 Jaguar XE, 2018-2020 Jaguar XF, 2018-2019 Jaguar F-Pace, 2018-2020 Land Rover Range Rover Velar, and 2020 Jaguar F-Pace and Jaguar XF with the specified chassis/VIN breakpoints. It is a direct-fit option for Bank 1 Sensor 3 applications where noted in the fitment data.

Walker Products 350-34683 is intended for vehicles that need a downstream oxygen sensor replacement to restore accurate exhaust monitoring. If the original sensor has triggered a fault code, caused rough running, increased fuel use, or illuminated the malfunction indicator light, this replacement helps address the sensor-side cause on the listed Jaguar and Land Rover models.

What It Helps Address

• Stored oxygen sensor fault codes in the ECU
• Malfunction indicator light related to downstream sensor performance
• Rough engine operation tied to emissions feedback errors
• Increased fuel consumption from inaccurate exhaust readings
• Elevated exhaust emissions caused by a failing sensor

Installation Notes and Tips

Confirm the vehicle year, model, downstream position, and VIN breakpoint before ordering. Check the sensor, wiring harness, and connector for physical damage during diagnosis, since damaged wiring can shorten sensor life and affect readings. Verify thread size and connector style against the original part before installation.

Quality Assurance

Walker Products has supplied engine management and fuel system components since 1946 and operates with ISO 9001/TS 16949 quality standards. Part number 350-34683 is manufactured as an OE-style replacement for the specified application and fitment position.