Walker 250-54076 Oxygen Sensor - Upstream

OE Oxygen Sensor for Honda Civic and Acura RSX

Walker Products OE 250-54076 is a heated, specific-fit oxygen sensor engineered as an OE-style replacement for select Honda and Acura applications. It is built for upstream placement and provides the ECU with the feedback needed for proper fuel control and emissions monitoring.

Fits 2002-2005 Honda Civic, upstream. Fits 2002-2004 Acura RSX, upstream. This Walker Products OE oxygen sensor is a direct-fit solution for drivers searching for a 2002-2005 Honda Civic upstream oxygen sensor or a 2002-2004 Acura RSX Bank 1 Sensor 1 replacement.

Key Features

• Part number: 250-54076
• Walker Products OE line for application-specific replacement
• Heated oxygen sensor design
• Specific fit for confirmed vehicle applications
• Upstream mounting position
• 4-wire configuration with 20-gauge wiring
• Radiused polygon male connector
• Threaded mount with 18.0 mm thread diameter
• Overall length: 11.93 in.
• Wiring harness length: 8.39 in.

Detailed Description

Walker Products OE 250-54076 is engineered for vehicles that require an upstream oxygen sensor with the correct connector, harness length, and threaded mounting style. The heated sensor design helps the engine control module receive accurate exhaust feedback for air-fuel management, emissions control, and diagnostic monitoring. For Honda Civic and Acura RSX owners, this part number 250-54076 is a direct replacement option built around the original application requirements.

Walker Products OE focuses on replacement sensors matched to the vehicle’s fitment position and ECU feedback needs. That makes this oxygen sensor a practical choice when servicing a 2002-2005 Honda Civic upstream oxygen sensor or a 2002-2004 Acura RSX upstream sensor location. Walker Products OE 250-54076 is also a fitment-specific option for Bank 1 Sensor 1 applications listed for these vehicles.

What It Helps Address

• Check engine light related to upstream oxygen sensor faults
• Poor fuel economy caused by incorrect exhaust feedback
• Rough engine operation from inaccurate air-fuel readings
• Elevated exhaust emissions from a failing sensor
• Diagnostic trouble codes stored in the ECU for sensor-related issues

Installation Notes and Tips

Confirm the upstream position, connector shape, wire count, and thread size before installation. Inspect the sensor wiring harness and connector for heat damage, corrosion, or physical wear, since damaged wiring can shorten sensor life and affect readings. Verify the vehicle application against the confirmed fitment for 2002-2005 Honda Civic and 2002-2004 Acura RSX before replacement.

Quality Assurance

Walker Products manufactures engine management and oxygen/air-fuel sensors as OE-style replacements for global vehicle applications. The brand operates under Automotive ISO9001/TS 16949 quality standards and has supplied engine management components since 1946. Walker Products OE 250-54076 reflects that application-specific approach for Honda Civic and Acura RSX fitment.