HomeEmission Control > SensorsWalker 250-54076 Oxygen Sensor - Upstream
Part #: 250-54076

Walker 250-54076 Oxygen Sensor - Upstream

Walker Products OE, Upstream
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
Fitment: Honda and Acura, Civic and RSX
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 250-54076 Oxygen Sensor for Acura and Honda

The Walker 250-54076 oxygen sensor is designed specifically for select Acura and Honda models, including the Civic and RSX. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle’s engine management system.

  • Heated oxygen sensor with 4-wire design for reliable operation
  • Specific fitment for Acura Civic and Honda RSX models
  • Threaded mounting type with 18.0 mm thread diameter
  • Radiused polygon male connector for secure electrical connection
  • Wiring harness length of 8.39 inches and overall length of 11.93 inches
  • Wire gauge measurement of 20 for durability and signal integrity

Detailed Features and Specifications

This Walker oxygen sensor (part number 250-54076) features a heated sensor type that allows for faster warm-up times and improved emissions control under various operating conditions. The sensor includes four wires, which support both the heating element and signal transmission, ensuring accurate oxygen level readings. The radiused polygon male connector provides a secure and precise fit, reducing the risk of electrical issues. With a threaded mounting type and an 18.0 mm thread diameter, installation is straightforward and compatible with the designated Acura and Honda models.

Walker Products OE Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed OEM specifications. This oxygen sensor is part of that line, ensuring it matches the fit, form, and function required by Acura and Honda vehicles. Using a Walker Products OE sensor helps maintain factory-level emissions performance and engine efficiency.

Common Applications and Problem Resolution

  • Replacement for faulty or failing oxygen sensors in Acura Civic and Honda RSX
  • Helps resolve engine performance issues related to incorrect air-fuel mixture
  • Reduces emissions by providing accurate oxygen level data to the engine control unit
  • Prevents check engine light triggers caused by sensor malfunctions
  • Improves fuel economy by enabling proper combustion adjustments

Installation Notes and Tips

When installing the Walker 250-54076 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to avoid damaging the sensor or threads. Verify the connector matches the vehicle’s wiring harness and secure it firmly to prevent electrical disconnections. Follow torque specifications recommended by the vehicle manufacturer for the threaded mounting.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain compliance with emissions regulations and supports long-term vehicle operation.

BrandWalker
Part Number250-54076
PositionWalker Products OE, Upstream
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length11.93
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length8.39

This part fits 14 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersFuel TypePositionNotes
2005HondaCivic2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2005HondaCivic2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2004AcuraRSXManual2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2004AcuraRSXManual2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2004HondaCivic2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2004HondaCivic2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2003AcuraRSXManual2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2003AcuraRSXManual2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2003HondaCivic2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2003HondaCivic2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2002AcuraRSXManual2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2002AcuraRSXManual2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2002HondaCivic2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2002HondaCivic2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; 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.