HomeEmission Control > SensorsWalker 250-24016 Oxygen Sensor - Upstream
Part #: 250-24016

Walker 250-24016 Oxygen Sensor - Upstream

Walker Products OE, Upstream
⚙️ 30 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
🚗Fitment: Ford and Mercury, Contour, Cougar, and Mystique
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Walker 250-24016 Oxygen Sensor

The Walker 250-24016 oxygen sensor is designed specifically for select Ford and Mercury vehicles, including the Contour, Cougar, and Mystique models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

  • Heated oxygen sensor with 4-wire configuration
  • 24.33-inch wiring harness length for precise fitment
  • 20-gauge wire for reliable signal transmission
  • Threaded mounting type with 18.0 mm thread diameter
  • Radiused polygon male connector for secure connection
  • Overall length of 27.87 inches for proper installation
  • Specific fit for Ford Contour, Mercury Cougar, and Mystique

Walker Products OE Line Details

This oxygen sensor is part of the Walker Products OE line, which focuses on providing original equipment quality parts designed to meet or exceed factory specifications. The OE line ensures compatibility and durability, making it suitable for emission control systems requiring precise sensor performance.

Product Description and Attributes

The Walker 250-24016 oxygen sensor features a heated sensor type that allows for faster warm-up times and improved fuel efficiency. Its 4-wire design includes two wires for the heating element and two for the sensor signal, ensuring accurate readings. The wiring harness length of 24.33 inches and overall length of 27.87 inches provide the necessary reach for proper installation in the exhaust system. The sensor mounts via a threaded connection with an 18.0 mm diameter, compatible with the specified Ford and Mercury models. The radiused polygon male connector ensures a secure and precise electrical connection, reducing the risk of signal loss or corrosion.

Common Applications and Issues Addressed

  • Helps maintain proper air-fuel mixture for efficient combustion
  • Reduces harmful emissions by providing accurate oxygen level data
  • Prevents engine performance issues related to faulty sensors
  • Addresses check engine light triggers related to oxygen sensor faults
  • Supports smooth engine idling and acceleration in Ford Contour, Mercury Cougar, and Mystique

Installation Notes and Tips

When installing the Walker 250-24016 oxygen sensor, ensure the threaded mounting hole is clean and free of debris. Use anti-seize compound on the threads to prevent seizing but avoid contaminating the sensor tip. Confirm the radiused polygon male connector aligns correctly with the vehicle’s wiring harness to ensure a secure fit. Proper torque specifications should be followed to avoid damage to the sensor or exhaust components.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. While specific warranty details for part number 250-24016 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship to support long-term use in emission control systems.

BrandWalker
Part Number250-24016
PositionWalker Products OE, Upstream
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length27.87
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length24.33

This part fits 30 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1999FordContour2.0LL4BI-FUELUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1999FordContour2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1999FordContour2.0LL4BI-FUELUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1999FordContour2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1999MercuryCougar2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1999MercuryCougar2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1999MercuryMystique2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1999MercuryMystique2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1998FordContour2.0LL4BI-FUELUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1998FordContour2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1998FordContour2.0LL4BI-FUELUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1998FordContour2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1998MercuryMystique2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1998MercuryMystique2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1997FordContour2.0LL4BI-FUELUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1997FordContour2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1997FordContour2.0LL4BI-FUELUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1997FordContour2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1997MercuryMystique2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1997MercuryMystique2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1996FordContour2.0LL4BI-FUELUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1996FordContour2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1996FordContour2.0LL4BI-FUELUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1996FordContour2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1996MercuryMystique2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1996MercuryMystique2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1995FordContour2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1995FordContour2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1995MercuryMystique2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1995MercuryMystique2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; 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.