HomeEmission Control > SensorsWalker 250-54018 Oxygen Sensor - Upstream Left or Upstream Right
Part #: 250-54018

Walker 250-54018 Oxygen Sensor - Upstream Left or Upstream Right

Walker Products OE, Upstream Left
78 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$167.24Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products OE, Upstream Left
Fitment: Jaguar, X-Type, S-Type, Vanden Plas, XK8, XKR, Super V8, XJ8, and XJR
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 250-54018 Oxygen Sensor for Jaguar Vehicles

The Walker 250-54018 oxygen sensor is designed specifically for select Jaguar models, including the S-Type, Super V8, Vanden Plas, X-Type, XJ8, XJR, XK8, and XKR. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

  • Heated oxygen sensor with 4-wire configuration
  • Specific fit for Jaguar models listed
  • 15.28-inch wiring harness length for precise installation
  • Threaded mounting type with 18.0 mm thread diameter
  • Radiused polygon female connector for secure connection
  • Overall length of 18.82 inches
  • 20 gauge wire measurement for durability

Detailed Features and Specifications

This Walker Products OE oxygen sensor (part number 250-54018) features a heated sensor type that allows for faster warm-up times and improved sensor response. The 4-wire design supports both the sensor signal and heater circuit, ensuring reliable operation under various driving conditions. The wiring harness length of 15.28 inches provides sufficient reach for proper routing in the engine bay. The sensor’s threaded mounting type with an 18.0 mm diameter allows for secure installation in the exhaust system. The radiused polygon female connector ensures a precise and stable electrical connection, reducing the risk of signal loss or corrosion. With an overall length of 18.82 inches and 20 gauge wire measurement, this sensor is built to meet the specific requirements of Jaguar vehicles.

Walker Products OE Brand Line

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. This oxygen sensor is part of that line, ensuring compatibility and performance tailored to Jaguar’s emission control systems. Using a Walker Products OE sensor helps maintain the integrity of your vehicle’s emissions system and supports compliance with environmental regulations.

Common Applications and Problem Resolution

  • Restores accurate oxygen sensing for proper air-fuel mixture control
  • Resolves check engine light issues related to oxygen sensor faults
  • Improves fuel efficiency by providing correct exhaust gas readings
  • Reduces harmful emissions by ensuring proper catalytic converter function
  • Eliminates rough idling or engine hesitation caused by faulty sensors

Installation Notes and Tips

When installing the Walker 250-54018 oxygen sensor, ensure the engine and exhaust system are cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector type matches the vehicle’s wiring harness before installation. Properly route the wiring harness to prevent contact with hot or moving parts. After installation, clear any diagnostic trouble codes and perform a test drive to confirm sensor operation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. This part is designed to match original equipment specifications for Jaguar vehicles. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Consult product documentation or the supplier for exact warranty terms.

BrandWalker
Part Number250-54018
PositionWalker Products OE, Upstream Left
Connector GenderFemale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length18.82
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length15.28

This part fits 78 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2008JaguarX-Type3.0LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2008JaguarX-Type3.0LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2007JaguarX-Type3.0LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2007JaguarX-Type3.0LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2006JaguarS-Type4.2LV8GASUpstream RightTo Chassis #N52047; Para Chasis N52047; Upstream; Right; Walker Products OE
2006JaguarS-Type4.2LV8GASUpstream LeftTo Chassis #N52047; Para Chasis N52047; Upstream; Left; Walker Products OE
2006JaguarS-Type3.0LV6GASUpstream RightTo Chassis #N52047; Para Chasis N52047; Upstream; Right; Walker Products OE
2006JaguarS-Type3.0LV6GASUpstream LeftTo Chassis #N52047; Para Chasis N52047; Upstream; Left; Walker Products OE
2006JaguarS-Type4.2LV8GASUpstream RightTo Chassis #N52047; Upstream; Right; Walker Products OE
2006JaguarS-Type4.2LV8GASUpstream LeftTo Chassis #N52047; Upstream; Left; Walker Products OE
2006JaguarS-Type3.0LV6GASUpstream RightTo Chassis #N52047; Upstream; Right; Walker Products OE
2006JaguarS-Type3.0LV6GASUpstream LeftTo Chassis #N52047; Upstream; Left; Walker Products OE
2006JaguarVanden Plas4.2LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2006JaguarVanden Plas4.2LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2006JaguarX-Type3.0LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2006JaguarX-Type3.0LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2006JaguarXK84.2LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2006JaguarXK84.2LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2006JaguarXKR4.2LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2006JaguarXKR4.2LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2005JaguarS-Type4.2LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2005JaguarS-Type4.2LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2005JaguarS-Type3.0LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2005JaguarS-Type3.0LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2005JaguarSuper V84.2LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2005JaguarSuper V84.2LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2005JaguarVanden Plas4.2LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2005JaguarVanden Plas4.2LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2005JaguarX-Type3.0LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2005JaguarX-Type3.0LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2005JaguarX-Type2.5LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2005JaguarX-Type2.5LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2005JaguarXJ84.2LV8GASUpstream RightTo Chassis/VIN #G49700; Para Chasis / VIN # G49700; Upstream; Right; Walker Products OE
2005JaguarXJ84.2LV8GASUpstream LeftTo Chassis/VIN #G49700; Para Chasis / VIN # G49700; Upstream; Left; Walker Products OE
2005JaguarXJ84.2LV8GASUpstream RightTo Chassis/VIN #G49700; Upstream; Right; Walker Products OE
2005JaguarXJ84.2LV8GASUpstream LeftTo Chassis/VIN #G49700; Upstream; Left; Walker Products OE
2005JaguarXJR4.2LV8GASUpstream RightTo Chassis #G49700; Para Chasis G49700; Upstream; Right; Walker Products OE
2005JaguarXJR4.2LV8GASUpstream LeftTo Chassis #G49700; Para Chasis G49700; Upstream; Left; Walker Products OE
2005JaguarXJR4.2LV8GASUpstream RightTo Chassis #G49700; Upstream; Right; Walker Products OE
2005JaguarXJR4.2LV8GASUpstream LeftTo Chassis #G49700; Upstream; Left; Walker Products OE
2005JaguarXK84.2LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2005JaguarXK84.2LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2005JaguarXKR4.2LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2005JaguarXKR4.2LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2004JaguarS-Type4.2LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2004JaguarS-Type4.2LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2004JaguarS-Type3.0LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2004JaguarS-Type3.0LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2004JaguarVanden Plas4.2LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2004JaguarVanden Plas4.2LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2004JaguarX-Type3.0LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2004JaguarX-Type3.0LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2004JaguarX-Type2.5LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2004JaguarX-Type2.5LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2004JaguarXJ84.2LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2004JaguarXJ84.2LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2004JaguarXJR4.2LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2004JaguarXJR4.2LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2004JaguarXK84.2LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2004JaguarXK84.2LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2004JaguarXKR4.2LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2004JaguarXKR4.2LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2003JaguarS-Type4.2LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2003JaguarS-Type4.2LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2003JaguarS-Type3.0LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2003JaguarS-Type3.0LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2003JaguarX-Type3.0LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2003JaguarX-Type3.0LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2003JaguarX-Type2.5LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2003JaguarX-Type2.5LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2003JaguarXK84.2LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2003JaguarXK84.2LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2003JaguarXKR4.2LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2003JaguarXKR4.2LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2002JaguarX-Type3.0LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2002JaguarX-Type3.0LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2002JaguarX-Type2.5LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2002JaguarX-Type2.5LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.