Walker 250-24701 Oxygen Sensor

Walker Products OE Oxygen Sensor for Ford and Mazda

Walker Products OE 250-24701 is a heated oxygen sensor built as an OE-style replacement for specific Ford, Lincoln, Mercury, and Mazda applications. It is engineered for the correct fitment position and ECU feedback, helping maintain proper air-fuel control on vehicles such as the Ford Ranger, Ford Explorer, and Ford F-150.

Key Features

• Heated oxygen sensor with specific fitment for targeted vehicle applications
• 4-wire design with a 22-gauge harness
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector for application-specific connection
• Overall length: 18.82 in.; wiring harness length: 15.28 in.
• Walker Products OE line focuses on application-matched engine management sensors

Detailed Description

Walker Products OE 250-24701 is an oxygen sensor for vehicles that require precise upstream or downstream feedback to the ECU. This sensor is listed for multiple positions, including upstream left, upstream right, downstream left, and downstream right, depending on the vehicle and engine configuration. It is a direct-fit style replacement for select Ford Ranger, Ford Explorer, Ford Expedition, Ford F-150, Lincoln Mark LT, Lincoln Navigator, Mercury Mountaineer, and Mazda B3000/B4000 applications.

The Walker Products OE product line is built around application-specific engine management components, with each part number matched to the intended vehicle position and diagnostic function. For fitment-based searches, this part is commonly referenced for Ford Ranger upstream oxygen sensor replacement, Ford Explorer upstream oxygen sensor replacement, and Ford F-150 downstream oxygen sensor replacement. Part number 250-24701 is also used in searches for 250-24701 oxygen sensor and Walker Products OE 250-24701.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Poor fuel economy caused by incorrect exhaust feedback
• Rough engine operation from inaccurate air-fuel readings
• Elevated exhaust emissions from a failing sensor
• Fault codes stored in the ECU for the affected sensor circuit

Installation Notes and Tips

Verify the exact position before ordering, since this part is listed for multiple upstream and downstream locations. Inspect the sensor, wiring harness, and connector for physical damage before installation, and confirm the connector shape, thread diameter, and harness length match the original unit. For fitment, use the vehicle-specific listing for your Ford Ranger, Ford Explorer, Ford F-150, or other listed application.

• Fits 2009-2012 Ford E-350 Super Duty, upstream left
• Fits 2009-2011 Ford E-350 Super Duty, upstream right
• Fits 2001-2011 Ford Ranger, upstream right
• Fits 2002-2011 Ford Ranger, upstream left
• Fits 2007-2008 Ford Expedition, upstream right
• Fits 2007-2008 Ford Expedition, upstream left
• Fits 2005-2008 Ford F-150, downstream right
• Fits 2005-2008 Ford F-150, downstream left
• Fits 2006-2008 Lincoln Mark LT, downstream right
• Fits 2006-2008 Lincoln Mark LT, downstream left
• Fits 2008 Lincoln Navigator, upstream right
• Fits 2008 Lincoln Navigator, upstream left
• Fits 2004-2005 Ford Explorer, upstream right
• Fits 1999-2002 Ford Explorer, upstream right
• Fits 2004-2005 Ford Explorer, upstream left
• Fits 1999-2002 Ford Explorer, upstream left
• Fits 2001-2005 Ford Explorer Sport Trac, upstream right
• Fits 2001-2005 Ford Explorer Sport Trac, upstream left
• Fits 2004-2005 Ford Explorer Sport Trac, downstream right
• Fits 2004-2005 Ford Explorer Sport Trac, downstream left
• Fits 2001-2003 Mazda B3000, upstream right
• Fits 2001-2003 Mazda B3000, upstream left
• Fits 2002-2003 Mazda B4000, upstream right
• Fits 2002-2003 Mazda B4000, upstream left
• Fits 2001-2002 Ford Explorer Sport, upstream right
• Fits 2001 Ford Ranger, upstream left
• Fits 1999-2001 Mercury Mountaineer, upstream right
• Fits 1999-2001 Mercury Mountaineer, upstream left

Quality Assurance

Walker Products has supplied engine management and oxygen sensor components since 1946 and manufactures OE-style replacement parts for specific vehicle applications. The company is ISO 9001/TS 16949 certified, with production focused on application accuracy and diagnostic feedback requirements.