Walker 250-54032 Oxygen Sensor - Upstream Left or Upstream Right

Walker OE Oxygen Sensor for Jaguar

Walker Products OE oxygen sensor Part Number 250-54032 is a specific-fit, heated upstream sensor engineered for direct replacement on select Jaguar applications. It is built to deliver the ECU feedback needed for accurate fuel control and emissions monitoring on the listed vehicles.

Key Features

• Heated oxygen sensor with 4-wire design
• Specific-fit application for listed Jaguar upstream left and upstream right positions
• Threaded mounting type with 18.0 mm thread diameter
• Female connector with radiused polygon connector shape
• Wiring harness length: 10.35; overall length: 13.9
• Walker Products OE line for OE-style engine management replacement parts

Product Details

The Walker Products OE line focuses on application-specific engine management components built for exact vehicle fitment and diagnostic system feedback. Part Number 250-54032 is an upstream oxygen sensor for Jaguar models including XF, XFR, XJ8, XJR, XK, XKR, S-Type, Super V8, Vanden Plas, XJ8, and XJR across the listed years and chassis breakpoints. For Jaguar XF upstream oxygen sensor replacement or Jaguar XFR upstream left oxygen sensor service, this part is matched to the required position and connector style.

This oxygen sensor helps the ECU monitor exhaust oxygen content so the engine can maintain proper air-fuel control. Walker Products has supplied engine management and fuel system components since 1946, and the OE product line is built around vehicle-specific fitment rather than universal application.

What It Helps Address

• Check engine light related to upstream oxygen sensor faults
• Poor engine performance 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 the affected sensor circuit

Installation Notes and Tips

• Confirm the exact position before ordering: upstream left or upstream right.
• Verify chassis or VIN breakpoints where listed, including R47153 and G49701 applications.
• Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before installation.
• Check the exhaust bung threads and mounting surface for damage prior to threading in the sensor.
• Use the listed connector shape, wire count, and thread diameter to confirm match with the original part.

Quality Assurance

Walker Products is an Automotive ISO9001/TS 16949 certified company. The Walker Products OE line is developed as an original-equipment-style replacement for specific vehicle applications, with fitment and diagnostic feedback matched to the ECU requirements of the listed Jaguar models. This part cross-references Bosch (e.g., 15717) for the same application.