Walker 250-54075 Oxygen Sensor - Upstream

OE Oxygen Sensor for Honda Civic

Walker Products OE 250-54075 is a heated oxygen sensor built for specific vehicle applications and ECU feedback requirements. It is a direct-fit replacement for select 2004-2005 Honda Civic upstream positions, including Bank 1 Sensor 1 applications.

Walker Products OE focuses on application-specific engine management sensors, with each part engineered for the intended mounting position and connector style. For a 2004-2005 Honda Civic upstream oxygen sensor replacement, 250-54075 is designed to match the original fitment and signal needs of the vehicle’s emissions system.

Key Features

• Heated oxygen sensor for faster operating response
• Specific-fit design for the correct Honda Civic upstream location
• 4-wire configuration with female connector
• Threaded mounting type with 18.0 mm thread diameter
• 19.21 in. wiring harness length and 22.76 in. overall length
• Radiused polygon connector shape for OE-style connection
• Walker Products OE part number 250-54075

Detailed Description

This Walker Products OE oxygen sensor is engineered for emissions control feedback on select 2004-2005 Honda Civic models. It is a heated, threaded sensor with a specific-fit design, making it suitable for upstream installation where the ECU relies on accurate exhaust-gas data to manage fuel delivery and emissions performance. The 250-54075 part number should be matched to the vehicle’s original sensor location and connector style before installation.

Walker Products OE 250-54075 is also referenced for 2004-2005 Honda Civic front oxygen sensor applications. If your vehicle has an illuminated MIL or stored fault code related to the upstream sensor circuit, this replacement may restore proper sensor feedback when the original unit has failed or the harness/connector has been damaged.

What It Helps Address

• Check engine light related to upstream oxygen sensor faults
• Poor engine performance caused by incorrect exhaust feedback
• Increased fuel consumption from inaccurate air-fuel control
• Higher exhaust emissions from a failing sensor
• Fault codes stored in the ECU for Bank 1 Sensor 1

Installation Notes

Confirm the vehicle is a 2004-2005 Honda Civic with an upstream oxygen sensor requirement before ordering. Match the connector shape, wire count, thread diameter, and harness length to the original sensor. Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before installation, since physical damage can shorten sensor life and affect operation.

Fits 2004-2005 Honda Civic, upstream. Fits 2004-2005 Honda Civic, front oxygen sensor position.

Quality Assurance

Walker Products OE sensors are developed as original-equipment-style replacements for specific applications and are manufactured under Automotive ISO9001/TS 16949 quality systems. Since 1946, Walker Products has supplied engine management and fuel system components for vehicle service applications.