Walker 250-54112 Oxygen Sensor - Upstream

Walker OE Oxygen Sensor for Honda Civic

Walker Products OE 250-54112 is a heated oxygen sensor built for specific vehicle applications and upstream mounting positions. It is engineered to provide the ECU with the diagnostic feedback needed for proper fuel control on 2006-2008 Honda Civic models.

The Walker Products OE line focuses on direct-fit engine management sensors for application-specific replacement. Part number 250-54112 is made for the correct fitment position, connector style, and sensor response expected by the vehicle’s control system.

Key Features

• Heated oxygen sensor for upstream placement
• Specific-fit design for direct application matching
• 4-wire configuration with female connector
• Radiused polygon connector shape
• 18.0 mm thread diameter and threaded mounting type
• 13.31 in. wiring harness length
• 16.85 in. overall length
• Walker Products OE part number 250-54112

Detailed Description

Walker Products OE 250-54112 is an upstream oxygen sensor for 2006-2008 Honda Civic applications, including Bank 1 Sensor 1 service needs. It is designed to replace the original sensor in the correct position so the ECU can monitor exhaust oxygen content and adjust air-fuel delivery accurately. If the original sensor is slow, damaged, or out of range, the vehicle may store fault codes and show drivability or emissions-related symptoms. This part number 250-54112 is also listed for front oxygen sensor service on select Honda Civic applications.

Walker Products has supplied engine management and oxygen/air-fuel sensors since 1946, and the OE product line is built around application-specific replacement fitment. For Honda Civic owners searching for an upstream oxygen sensor, Honda Civic Bank 1 Sensor 1 replacement, or a front oxygen sensor for 2006-2008 Honda Civic, this part provides the correct sensor type and connector layout for the listed vehicles.

What It Helps Address

• Check engine light related to upstream oxygen sensor faults
• Poor fuel economy caused by inaccurate exhaust feedback
• Rough engine operation from incorrect air-fuel correction
• Elevated exhaust emissions from a failing sensor
• Stored ECU fault codes tied to Bank 1 Sensor 1

Installation Notes and Tips

Confirm the vehicle is a 2006-2008 Honda Civic and verify the upstream sensor location before installation. Inspect the sensor wiring harness and connector for heat damage, corrosion, or abrasion, since physical damage can shorten sensor life and affect readings. Match the threaded mounting style, connector shape, and wire count to the original part before replacement.

Quality Assurance

Walker Products is an ISO 9001/TS 16949 certified automotive manufacturer with long-standing experience in engine management sensors. The OE line is developed as an original-equipment-style replacement for specific applications, including Honda Civic oxygen sensor service. This part cross-references Walker Products OE 250-54112 for the same application.