HomeEmission Control > SensorsWalker 250-24295 Oxygen Sensor - Downstream
Part #: 250-24295

Walker 250-24295 Oxygen Sensor - Downstream

Walker Products OE, Downstream
⚙️ 17 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
🚗Fitment: Subaru, Forester and Impreza
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Walker 250-24295 Oxygen Sensor for Subaru Vehicles

The Walker 250-24295 oxygen sensor is designed specifically for Subaru Forester and Impreza models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

  • Heated oxygen sensor type for faster response times
  • Specific fit for Subaru Forester and Impreza
  • 15.87-inch wiring harness length for precise installation
  • 20 gauge wire measurement with 4 wires for reliable signal transmission
  • Radiused polygon male connector for secure connection
  • Threaded mounting type with 18.0 mm thread diameter
  • Overall length of 19.41 inches for proper fitment

Walker Products OE Brand Line Details

This oxygen sensor is part of the Walker Products OE line, which focuses on providing original equipment quality parts. Walker Products OE components are engineered to meet or exceed factory specifications, ensuring compatibility and durability for emission control systems in Subaru vehicles.

Detailed Product Description

The Walker 250-24295 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. Its 4-wire design supports both the sensor signal and heater circuit, enhancing sensor responsiveness. The radiused polygon male connector ensures a secure and precise electrical connection, minimizing the risk of signal loss. With a threaded mounting type and an 18.0 mm thread diameter, this sensor installs directly into the exhaust system of Subaru Forester and Impreza models, maintaining proper fit and function.

Common Applications and Issues Addressed

  • Helps maintain optimal air-fuel mixture for efficient combustion
  • Reduces harmful emissions by providing accurate exhaust gas readings
  • Prevents engine performance issues related to faulty oxygen sensors
  • Resolves check engine light triggers caused by sensor failure
  • Supports proper operation of catalytic converters

Installation Notes and Tips

When installing the Walker 250-24295 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct socket size for the 18.0 mm threaded sensor to prevent damage. Verify the wiring harness length of 15.87 inches is sufficient for your specific Subaru Forester or Impreza model year. Confirm the radiused polygon male connector aligns properly with the vehicle’s wiring harness to ensure a secure connection.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to support long-term use in Subaru Forester and Impreza vehicles.

BrandWalker
Part Number250-24295
PositionWalker Products OE, Downstream
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length19.41
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length15.87

This part fits 17 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2004SubaruForester2.5LH4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2004SubaruImpreza2.5LH4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2003SubaruForester2.5LH4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2003SubaruImpreza2.5LH4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2002SubaruForester2.5LH4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2002SubaruImpreza2.5LH4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2001SubaruForester2.5LH4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2001SubaruImpreza2.5LH4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2000SubaruForester2.5LH4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2000SubaruImpreza2.5LH4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
1999SubaruForester2.5LH4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
1999SubaruImpreza2.5LH4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
1999SubaruImpreza2.2LH4GASDownstreamDownstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products OE
1999SubaruImpreza2.2LH4GASDownstreamDownstream oxygen sensor for B1S2 position in California emissions.; Walker Products OE
1999SubaruImpreza2.2LH4GASDownstreamDownstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products OE
1999SubaruImpreza2.2LH4GASDownstreamDownstream oxygen sensor compatible with California-ESV vehicles in bank 1 position 2.; Walker Products OE
1999SubaruImpreza2.2LH4GASDownstreamDownstream oxygen sensor for second bank, sensor 1, non-California emissions.; 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.