HomeEmission Control > SensorsWalker 250-24072 Oxygen Sensor - Downstream, Downstream Front or Upstream
Part #: 250-24072

Walker 250-24072 Oxygen Sensor - Downstream, Downstream Front or Upstream

Walker Products OE, Downstream Front
⚙️ 11 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, Downstream Front
🚗Fitment: Mazda and Ford, Millenia, Aspire, and MPV
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Walker 250-24072 Oxygen Sensor

The Walker 250-24072 oxygen sensor is designed specifically for select Ford and Mazda vehicles, including the Aspire, Millenia, and MPV models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data.

  • Heated sensor type for faster response times
  • Specific fit for Ford Aspire, Mazda Millenia, and MPV
  • 31.81-inch wiring harness length for flexible installation
  • 20 gauge wire with 4-wire configuration
  • Radiused polygon male connector for secure connection
  • 18.0 mm threaded mounting for direct replacement
  • Overall length of 35.35 inches

Detailed Product Features and Specifications

This oxygen sensor from Walker Products OE features a heated sensor element that allows quicker sensor activation and improved emissions monitoring. The 4-wire design includes two wires for the heater circuit and two for the sensor signal, ensuring reliable operation. The wiring harness length of 31.81 inches provides ample reach for installation in the engine bay, while the 20 gauge wire ensures durability and signal integrity. The sensor’s radiused polygon male connector is designed for a secure and precise fit, reducing the risk of connection issues. The threaded mounting with an 18.0 mm diameter allows for straightforward replacement on compatible Ford Aspire, Mazda Millenia, and MPV 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 on your Ford or Mazda vehicle. Using a Walker Products OE sensor helps maintain proper emissions control and engine efficiency.

Common Applications and Problem Resolution

  • Restores accurate air-fuel ratio readings for engine control units
  • Resolves rough idling and poor fuel economy caused by faulty sensors
  • Helps correct check engine light issues related to oxygen sensor faults
  • Improves emissions system performance to meet regulatory standards
  • Prevents engine hesitation and stalling linked to sensor failure

Installation Notes and Tips

When installing the Walker 250-24072 oxygen sensor, ensure the engine is cool to avoid burns. Use the correct 18.0 mm oxygen sensor socket for removal and installation. Verify the connector orientation matches the radiused polygon male connector to avoid damage. Check wiring harness routing to prevent contact with hot or moving engine parts. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper sensor operation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards for durability and performance. This part number 250-24072 undergoes rigorous testing to ensure reliable operation in Ford Aspire, Mazda Millenia, and MPV vehicles. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to support long-term use.

BrandWalker
Part Number250-24072
PositionWalker Products OE, Downstream Front
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length35.35
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length31.81

This part fits 11 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersFuel TypePositionNotes
2000MazdaMillenia2.5LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products OE
1999MazdaMillenia2.5LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products OE
1998MazdaMillenia2.5LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products OE
1997FordAspire1.3LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
1997MazdaMillenia2.5LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products OE
1996FordAspire1.3LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
1995MazdaMPV3.0LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1994MazdaMPV3.0LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1993MazdaMPV3.0LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1992MazdaMPV3.0LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1991MazdaMPVAutomatic3.0LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; 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.