HomeEmission Control > SensorsWalker 250-25060 Oxygen Sensor - Upstream Front or Upstream Rear
Part #: 250-25060

Walker 250-25060 Oxygen Sensor - Upstream Front or Upstream Rear

Walker Products OE, Upstream Front
⚙️ 18 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Walker Products OE, Upstream Front
🚗Fitment: Ford, Mazda, and Mercury, Fusion, 6, and Milan
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Overview of Walker 250-25060 Oxygen Sensor

The Walker 250-25060 oxygen sensor is designed specifically for select Ford Fusion, Mazda Milan, and Mercury models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

  • Heated sensor type for faster response times
  • Specific fit for Ford Fusion, Mazda Milan, and Mercury vehicles
  • Threaded mounting type with 18.0 mm thread diameter
  • 5-wire configuration with 20 gauge wire for reliable signal transmission
  • Radiused polygon male connector for secure electrical connection
  • Overall length of 12.52 inches and wiring harness length of 8.98 inches

Detailed Product Features and Specifications

This oxygen sensor from Walker Products OE is engineered with a heated sensor element to provide quicker warm-up and more accurate readings under various operating conditions. The 5-wire design supports advanced sensor functionality, improving the precision of air-fuel mixture adjustments. The sensor’s 18.0 mm threaded mounting ensures a secure fit in the exhaust system, while the radiused polygon male connector guarantees a stable electrical connection. With an overall length of 12.52 inches and a wiring harness length of 8.98 inches, this sensor is tailored for specific vehicle applications, including Ford Fusion, Mazda Milan, and Mercury models.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. This oxygen sensor is part of that line, ensuring compatibility and performance consistent with the original sensor installed in your vehicle. Walker Products OE parts are designed to integrate seamlessly with your vehicle’s emission control system, supporting regulatory compliance and engine efficiency.

Common Applications and Issues Addressed

  • Restores accurate oxygen sensing for proper fuel mixture control
  • Helps resolve rough idling caused by faulty sensor readings
  • Reduces increased emissions due to sensor malfunction
  • Improves fuel economy by maintaining correct air-fuel ratio
  • Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

Installation requires removal of the old oxygen sensor and threading the Walker 250-25060 sensor into the exhaust port. Ensure the connector matches the radiused polygon male type for proper connection. Use appropriate tools to avoid damaging the 18.0 mm threaded fitting. Verify wiring harness length and routing to prevent strain or interference with other components.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards. While specific warranty details are not provided here, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain compliance with emissions regulations and supports long-term vehicle reliability.

BrandWalker
Part Number250-25060
PositionWalker Products OE, Upstream Front
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length12.52
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity5
Wiring Harness Length8.98

This part fits 18 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2010FordFusion3.5LV6GASUpstream RearTo 08/03/2009; B1S1; Al 08/03/2009; Upstream; Rear; Walker Products OE
2010FordFusion3.5LV6GASUpstream FrontTo 08/03/2009; B2S1; Al 08/03/2009; Upstream; Front; Walker Products OE
2010FordFusion3.0LV6FLEXUpstream RearTo 08/03/2009; Al 08/03/2009; Upstream; Rear; Walker Products OE
2010FordFusion3.0LV6FLEXUpstream FrontTo 08/03/2009; Al 08/03/2009; Upstream; Front; Walker Products OE
2010FordFusion3.5LV6GASUpstream RearTo 08/03/2009; Al 08/03/2009; Upstream; Rear; B1S1; Walker Products OE
2010FordFusion3.5LV6GASUpstream FrontTo 08/03/2009; Al 08/03/2009; Upstream; Front; B2S1; Walker Products OE
2010FordFusion3.5LV6GASUpstream RearTo 08/03/2009; B1S1; Upstream; Rear; Walker Products OE
2010FordFusion3.5LV6GASUpstream FrontTo 08/03/2009; B2S1; Upstream; Front; Walker Products OE
2010FordFusion3.0LV6FLEXUpstream RearTo 08/03/2009; Upstream; Rear; Walker Products OE
2010FordFusion3.0LV6FLEXUpstream FrontTo 08/03/2009; Upstream; Front; Walker Products OE
2010Mazda63.7LV6GASUpstream RearUpstream oxygen sensor for rear exhaust system.; Walker Products OE
2010Mazda63.7LV6GASUpstream FrontFront upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products OE
2010MercuryMilan3.0LV6Upstream RearTo 08/03/2009; Al 08/03/2009; Upstream; Rear; Walker Products OE
2010MercuryMilan3.0LV6Upstream FrontTo 08/03/2009; Al 08/03/2009; Upstream; Front; Walker Products OE
2010MercuryMilan3.0LV6Upstream RearTo 08/03/2009; Upstream; Rear; Walker Products OE
2010MercuryMilan3.0LV6Upstream FrontTo 08/03/2009; Upstream; Front; Walker Products OE
2009Mazda63.7LV6GASUpstream RearUpstream oxygen sensor for rear exhaust system.; Walker Products OE
2009Mazda63.7LV6GASUpstream FrontFront upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products OE

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.