HomeEmission Control > SensorsWalker 250-25129 Oxygen Sensor - Upstream Right
Part #: 250-25129

Walker 250-25129 Oxygen Sensor - Upstream Right

Walker Products OE, Upstream Right
14 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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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 Right
Fitment: Porsche, 718 Boxster and 718 Cayman
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker Products OE Oxygen Sensor 250-25129

The Walker Products OE Oxygen Sensor 250-25129 is designed specifically for Porsche 718 Boxster and 718 Cayman models. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector, ensuring precise fitment and reliable performance.

  • Heated oxygen sensor for accurate emissions control
  • Specific fit for Porsche 718 Boxster and 718 Cayman
  • Threaded mounting with 18.0 mm thread diameter
  • 41.53 inches wiring harness length with 5 wires of 20 gauge
  • Radiused polygon male connector for secure connection
  • Overall length of 46.25 inches for proper installation

Detailed Product Features and Specifications

This Walker Products OE oxygen sensor (part number 250-25129) is engineered with a heated sensor element to provide faster response times and improved fuel management. The sensor includes a 41.53-inch wiring harness with five 20-gauge wires, allowing for optimal electrical connectivity. Its radiused polygon male connector ensures a secure and precise fit, reducing the risk of connection issues. The threaded mounting type with an 18.0 mm diameter thread allows for straightforward installation in the exhaust system of Porsche 718 Boxster and 718 Cayman vehicles. The overall length of 46.25 inches accommodates proper placement within the vehicle’s emission control system.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts designed to meet or exceed factory specifications. This oxygen sensor is part of that line, ensuring compatibility and performance tailored to specific vehicle applications like the Porsche 718 Boxster and 718 Cayman. The OE designation indicates that this sensor matches the fit, form, and function of the original sensor installed by the manufacturer.

Common Applications and Issues Addressed

  • Restores accurate oxygen sensing for proper air-fuel mixture control
  • Helps resolve check engine light codes related to oxygen sensor failure
  • Improves fuel efficiency by providing precise emissions data
  • Reduces harmful exhaust emissions by maintaining sensor accuracy
  • Prevents drivability issues caused by faulty oxygen sensors

Installation Notes and Tips

When installing the Walker Products OE oxygen sensor 250-25129, ensure the threaded mounting hole is clean and free of debris. Use anti-seize compound on the threads if recommended by the vehicle manufacturer to prevent seizing. Verify the connector matches the radiused polygon male shape for a secure connection. Handle the wiring harness carefully to avoid damage to the 20-gauge wires. Proper torque specifications should be followed to avoid sensor damage or exhaust leaks.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring durability and reliable performance. This part number 250-25129 undergoes rigorous testing to comply with emissions control requirements. Warranty coverage details should be confirmed with the product documentation or supplier, as it may vary by region.

BrandWalker
Part Number250-25129
PositionWalker Products OE, Upstream Right
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length46.25
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity5
Wiring Harness Length41.53

This part fits 14 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2020Porsche718 Boxster2.5LH4Upstream RightOE Base Sensor
2020Porsche718 Cayman2.5LH4Upstream RightOE Base Sensor
2019Porsche718 Boxster2.5LH4Upstream RightOE Base Sensor
2019Porsche718 Cayman2.5LH4Upstream RightOE Base Sensor
2018Porsche718 BoxsterS2.5LH4GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2018Porsche718 BoxsterGTS2.5LH4GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2018Porsche718 BoxsterBase2.0LH4GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2018Porsche718 CaymanS2.5LH4GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2018Porsche718 CaymanGTS2.5LH4GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2018Porsche718 CaymanBase2.0LH4GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2017Porsche718 BoxsterS2.5LH4GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2017Porsche718 BoxsterBase2.0LH4GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2017Porsche718 CaymanS2.5LH4GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2017Porsche718 CaymanBase2.0LH4GASUpstream RightInstall upstream oxygen sensor on the right 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.