Walker 250-24629 Oxygen Sensor

Walker OE Oxygen Sensor for Mazda and Ford

Walker Products OE 250-24629 is a heated oxygen sensor built for specific vehicle applications and ECU feedback requirements. It is engineered as an OE-style replacement for select Mazda Millenia, Mazda 626, Mazda MX-6, and Ford Probe models with the correct fitment position and connector configuration.

For drivers diagnosing a check engine light, poor fuel economy, or elevated exhaust emissions, this oxygen sensor helps restore accurate exhaust monitoring. The Walker Products OE line focuses on application-specific replacement parts for vehicles that need the correct sensor location and signal response.

Key Features

• Heated oxygen sensor for faster operating temperature
• Specific fit design for the listed Mazda and Ford applications
• 4-wire configuration with female connector
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon connector shape for proper vehicle-side connection
• 10.35 wiring harness length and 13.9 overall length
• Walker Products OE part number 250-24629

Product Details

Walker Products OE is the brand line for application-specific engine management and oxygen/air-fuel sensors developed as OE replacement parts. Part number 250-24629 is built for the exact sensor position required by the vehicle ECU, helping maintain proper feedback from the exhaust stream. This matters on Mazda 626 upstream Bank 1 Sensor 1 applications, Mazda Millenia upstream front and downstream front applications, Mazda MX-6 upstream applications, and Ford Probe downstream applications.

Fits 1995-1996 Mazda Millenia, downstream front; fits 1996-1997 Mazda 626, upstream; fits 1996-1997 Mazda MX-6, upstream; fits 1996-1997 Ford Probe, downstream; fits 1997-2000 Mazda Millenia, upstream front; fits 1998-2000 Mazda 626, upstream; fits 2001-2002 Mazda Millenia, downstream front. This part cross-references no listed alternate part numbers in the provided data.

Common Issues This Sensor May Address

• Check engine light related to oxygen sensor performance
• Poor fuel economy from incorrect exhaust feedback
• Rough engine operation caused by inaccurate air-fuel readings
• Higher exhaust emissions from a failing sensor
• Stored ECU fault codes tied to the affected sensor circuit

Installation Notes and Tips

Verify the sensor position before installation, since this part is application-specific and position-sensitive. Inspect the wiring harness and connector for heat damage, abrasion, or corrosion before replacing the sensor. Confirm the vehicle’s emissions calibration, especially on 1998-2000 Mazda 626 applications where California-emissions vehicles are excluded from the listed fitment.

Quality Assurance

Walker Products has produced engine management and fuel system components since 1946 and operates as an ISO 9001/TS 16949 certified company. The OE product line is developed for specific vehicle applications and diagnostic feedback requirements.