Walker 250-54053 Oxygen Sensor - Upstream Left or Upstream Right

Walker Products OE Oxygen Sensor for Jaguar

Walker Products OE Part Number 250-54053 is a heated oxygen sensor built for specific OE-style fitment and the correct ECU feedback on the listed Jaguar applications. It is engineered for upstream right and upstream left positions on select Jaguar Vanden Plas, XJ8, XJR, XK8, and XKR models from 1999-2003.

The Walker Products OE line focuses on application-specific engine management sensors for direct replacement use. For vehicles such as the Jaguar XJ8 and Jaguar XK8, the correct sensor position and connector configuration matter for accurate air-fuel monitoring and fault-code diagnosis.

Key Features

• Part number 250-54053 oxygen sensor for specific Jaguar applications
• Heated sensor design for faster operating response
• Specific fit, not universal
• 4-wire configuration with female connector
• Threaded mounting with 18.0 mm thread diameter
• Wiring harness length: 15.28 in.
• Overall length: 18.82 in.
• Walker Products OE replacement line for engine management sensors

Detailed Description

Walker Products 250-54053 is an OE-style heated oxygen sensor made for upstream right and upstream left locations on select 1999-2003 Jaguar Vanden Plas, XJ8, and XJR models, plus 2000-2002 Jaguar XK8 and XKR applications. It also covers 1999 Jaguar XK8 vehicles built from chassis #V031303 and later for the listed upstream positions. This sensor is designed to provide the ECU with the diagnostic feedback needed for proper fuel control and emissions monitoring.

Walker Products OE sensors are built around application-specific fitment, connector shape, wire count, and mounting style so the replacement matches the original sensor location. The 250-54053 part number is a direct-fit option for Jaguar oxygen sensor service where the original heated sensor has failed or is reporting incorrect data.

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

What It Helps Address

• Check engine light related to oxygen sensor performance
• Poor engine operation caused by incorrect air-fuel feedback
• Increased fuel consumption from inaccurate sensor readings
• Higher exhaust emissions from a failing upstream sensor
• Stored ECU fault codes tied to the affected sensor circuit

Installation Notes and Tips

• Confirm the vehicle position before ordering: upstream right or upstream left.
• Verify connector shape, 4-wire layout, and 18.0 mm thread diameter against the original sensor.
• Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before installation.
• On 1999 Jaguar XK8 applications, confirm chassis breakpoints noted in the fitment data.
• After installation, clear fault codes and verify closed-loop operation with a scan tool.

Quality Assurance

Walker Products OE sensors are developed as original-equipment replacement parts for specific vehicle applications. The brand has produced engine management and fuel system components since 1946 and operates with ISO 9001/TS 16949 quality certification.

• Fits 1999-2003 Jaguar Vanden Plas, upstream right
• Fits 1999-2003 Jaguar Vanden Plas, upstream left
• Fits 1999-2003 Jaguar XJ8, upstream right
• Fits 1999-2003 Jaguar XJ8, upstream left
• Fits 1999-2003 Jaguar XJR, upstream right
• Fits 1999-2003 Jaguar XJR, upstream left
• Fits 2000-2002 Jaguar XK8, upstream right
• Fits 2000-2002 Jaguar XK8, upstream left
• Fits 2000-2002 Jaguar XKR, upstream right
• Fits 2000-2002 Jaguar XKR, upstream left
• Fits 1999 Jaguar XK8, upstream right, from chassis #V031303
• Fits 1999 Jaguar XK8, upstream left, from chassis #V031303