HomeEmission Control > SensorsWalker 250-24751 Oxygen Sensor
Part #: 250-24751

Walker 250-24751 Oxygen Sensor

Walker Products OE, Downstream
120 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products OE, Downstream
Fitment: Mitsubishi, Outlander, Montero, Lancer, and Outlander Sport
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 250-24751 Oxygen Sensor for Mitsubishi Vehicles

The Walker 250-24751 oxygen sensor is designed specifically for select Mitsubishi models including the Lancer, Montero, Outlander, and Outlander Sport. 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 Mitsubishi Lancer, Montero, Outlander, and Outlander Sport
  • 33.98-inch wiring harness length for flexible installation
  • 20 gauge wire measurement with 4 wires for reliable signal transmission
  • Threaded mounting type with 18.0 mm thread diameter
  • Female connector with radiused polygon shape for secure connection
  • Overall length of 37.52 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 designed to meet or exceed factory specifications. The Walker Products OE line ensures that this sensor integrates seamlessly with the vehicle’s emission system, maintaining compliance with emissions standards and supporting engine efficiency.

Product Features and Technical Specifications

The Walker 250-24751 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 4-wire design includes two wires for the sensor signal and two for the heater circuit, ensuring accurate data transmission and sensor longevity. The 33.98-inch wiring harness length and radiused polygon female connector provide a secure and precise fit, minimizing installation challenges. The threaded mounting type with an 18.0 mm diameter matches factory specifications for Mitsubishi vehicles, ensuring proper sealing and sensor placement.

Common Applications and Issues Addressed

  • Helps resolve rough idling and engine hesitation caused by faulty oxygen sensors
  • Reduces increased fuel consumption due to inaccurate air-fuel mixture readings
  • Prevents emission test failures by maintaining proper exhaust gas monitoring
  • Addresses check engine light triggers related to oxygen sensor faults
  • Supports optimal catalytic converter performance by providing accurate sensor data

Installation Notes and Tips

When installing the Walker 250-24751 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. Verify the connector shape and wire count match the vehicle’s harness before installation. Thread the sensor carefully to avoid cross-threading and tighten to manufacturer torque specifications. The 33.98-inch wiring harness length allows for flexible routing during installation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring durability and reliable performance. This part is engineered to match original equipment specifications for Mitsubishi vehicles. While specific warranty details are not provided here, Walker typically offers coverage against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandWalker
Part Number250-24751
PositionWalker Products OE, Downstream
Connector GenderFemale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length37.52
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length33.98

This part fits 120 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2020MitsubishiOutlander2.4LL4GASDownstreamB1S2; OE Base Sensor
2020MitsubishiOutlander Sport2.4LL4GASDownstreamB1S2; OE Base Sensor
2019MitsubishiOutlander2.4LL4GASDownstreamB1S2; OE Base Sensor
2019MitsubishiOutlander Sport2.4LL4GASDownstreamB1S2; OE Base Sensor
2018MitsubishiOutlander2.4LL4GASDownstreamB1S2; OE Base Sensor
2018MitsubishiOutlander Sport2.4LL4GASDownstreamB1S2; OE Base Sensor
2017MitsubishiOutlander2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2017MitsubishiOutlander Sport2.4LL4GASDownstreamB1S2; OE Base Sensor
2016MitsubishiMontero3.8LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2016MitsubishiMontero3.8LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2016MitsubishiOutlander2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2016MitsubishiOutlander Sport2.4LL4GASDownstreamB1S2; OE Base Sensor
2015MitsubishiLancer2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2015MitsubishiOutlander2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2015MitsubishiOutlander Sport2.4LL4GASDownstreamB1S2; OE Base Sensor
2014MitsubishiLancer2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2014MitsubishiLancer2.4LL4GASCenterCalif-ESV; B1S2; Center; Walker Products OE
2014MitsubishiLancer2.4LL4GASCenterCalif-ESV Center Oxygen Sensor B1S2; Walker Products OE
2014MitsubishiOutlander2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2014MitsubishiOutlander Sport2.0LL4GASDownstreamB1S2; OE Base Sensor
2013MitsubishiLancer2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2013MitsubishiOutlander2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2013MitsubishiOutlander Sport2.0LL4GASDownstreamB1S2; OE Base Sensor
2012MitsubishiLancer2.4LL4GASDownstreamNon Calif-ESV; B1S3; No Calif-ESV; Downstream; Walker Products OE
2012MitsubishiLancer2.4LL4GASCenterCalif-ESV; B1S2; Center; Walker Products OE
2012MitsubishiLancer2.4LL4GASCenterNon Calif-ESV; B1S2; No Calif-ESV; Center; Walker Products OE
2012MitsubishiLancer2.0LL4GASDownstreamDownstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products OE
2012MitsubishiLancer2.0LL4GASCenterCalif-ESV; B1S2; Center; Walker Products OE
2012MitsubishiLancer2.4LL4GASDownstreamNon-Calif-ESV/No Calif-ESV Downstream B1S3 Oxygen Sensor; Walker Products OE
2012MitsubishiLancer2.4LL4GASCenterNon-Calif-ESV, No Calif-ESV, Center, B1S2; Walker Products OE
2012MitsubishiLancer2.4LL4GASCenterCalif-ESV Center Oxygen Sensor B1S2; Walker Products OE
2012MitsubishiLancer2.0LL4GASDownstreamDownstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products OE
2012MitsubishiLancer2.0LL4GASCenterCalif-ESV Center Oxygen Sensor B1S2; Walker Products OE
2012MitsubishiLancer2.4LL4GASDownstreamNon Calif-ESV; B1S3; Downstream; Walker Products OE
2012MitsubishiLancer2.4LL4GASCenterNon Calif-ESV; B1S2; Center; Walker Products OE
2012MitsubishiLancer2.0LL4GASDownstreamDownstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products OE
2012MitsubishiOutlander2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2012MitsubishiOutlander Sport2.0LL4GASDownstreamB1S2; OE Base Sensor
2011MitsubishiLancer2.4LL4GASDownstreamDownstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products OE
2011MitsubishiLancer2.4LL4GASCenterCalif-ESV; B1S2; Center; Walker Products OE
2011MitsubishiLancer2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2011MitsubishiLancer2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2011MitsubishiLancer2.0LL4GASDownstreamDownstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products OE
2011MitsubishiLancer2.0LL4GASCenterCalif-ESV; B1S2; Center; Walker Products OE
2011MitsubishiLancer2.4LL4GASDownstreamDownstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products OE
2011MitsubishiLancer2.4LL4GASCenterCalif-ESV Center Oxygen Sensor B1S2; Walker Products OE
2011MitsubishiLancer2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2011MitsubishiLancer2.0LL4GASDownstreamDownstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products OE
2011MitsubishiLancer2.0LL4GASCenterCalif-ESV Center Oxygen Sensor B1S2; Walker Products OE
2011MitsubishiLancer2.4LL4GASDownstreamDownstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products OE
2011MitsubishiLancer2.0LL4GASDownstreamDownstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products OE
2011MitsubishiOutlander2.4LL4DownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2011MitsubishiOutlander Sport2.0LL4GASDownstreamDownstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products OE
2011MitsubishiOutlander Sport2.0LL4GASCenterCalif-ESV; B1S2; Center; Walker Products OE
2011MitsubishiOutlander Sport2.0LL4GASDownstreamDownstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products OE
2011MitsubishiOutlander Sport2.0LL4GASCenterCalif-ESV Center Oxygen Sensor B1S2; Walker Products OE
2011MitsubishiOutlander Sport2.0LL4GASDownstreamDownstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products OE
2010MitsubishiLancer2.4LL4GASDownstreamNon Calif-ESV; B1S3; No Calif-ESV; Downstream; Walker Products OE
2010MitsubishiLancer2.4LL4GASCenterCalif-ESV; B1S2; Center; Walker Products OE
2010MitsubishiLancer2.4LL4GASCenterNon Calif-ESV; B1S2; No Calif-ESV; Center; Walker Products OE
2010MitsubishiLancer2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2010MitsubishiLancer2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2010MitsubishiLancer2.0LL4GASDownstreamNon Calif-ESV; B1S3; No Calif-ESV; Downstream; Walker Products OE
2010MitsubishiLancer2.0LL4GASCenterNon Calif-ESV; B1S2; No Calif-ESV; Center; Walker Products OE
2010MitsubishiLancer2.0LL4GASCenterCalif-ESV; B1S2; Center; Walker Products OE
2010MitsubishiLancer2.4LL4GASDownstreamNon-Calif-ESV/No Calif-ESV Downstream B1S3 Oxygen Sensor; Walker Products OE
2010MitsubishiLancer2.4LL4GASCenterCalif-ESV Center Oxygen Sensor B1S2; Walker Products OE
2010MitsubishiLancer2.4LL4GASCenterNon-Calif-ESV, No Calif-ESV, Center, B1S2; Walker Products OE
2010MitsubishiLancer2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2010MitsubishiLancer2.0LL4GASDownstreamNon-Calif-ESV/No Calif-ESV Downstream B1S3 Oxygen Sensor; Walker Products OE
2010MitsubishiLancer2.0LL4GASCenterNon-Calif-ESV, No Calif-ESV, Center, B1S2; Walker Products OE
2010MitsubishiLancer2.0LL4GASCenterCalif-ESV Center Oxygen Sensor B1S2; Walker Products OE
2010MitsubishiLancer2.4LL4GASDownstreamNon Calif-ESV; B1S3; Downstream; Walker Products OE
2010MitsubishiLancer2.4LL4GASCenterNon Calif-ESV; B1S2; Center; Walker Products OE
2010MitsubishiLancer2.0LL4GASDownstreamNon Calif-ESV; B1S3; Downstream; Walker Products OE
2010MitsubishiLancer2.0LL4GASCenterNon Calif-ESV; B1S2; Center; Walker Products OE
2010MitsubishiOutlander2.4LL4CenterCalif-ESV; B1S2; Center; Walker Products OE
2010MitsubishiOutlander2.4LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products OE
2010MitsubishiOutlander2.4LL4GASDownstreamDownstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products OE
2010MitsubishiOutlander2.4LL4CenterCalif-ESV Center Oxygen Sensor B1S2; Walker Products OE
2010MitsubishiOutlander2.4LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products OE
2010MitsubishiOutlander2.4LL4GASDownstreamDownstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products OE
2010MitsubishiOutlander2.4LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products OE
2010MitsubishiOutlander2.4LL4GASDownstreamDownstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products OE
2009MitsubishiLancer2.4LL4GASDownstreamNon Calif-ESV; B1S3; No Calif-ESV; Downstream; Walker Products OE
2009MitsubishiLancer2.4LL4GASCenterNon Calif-ESV; B1S2; No Calif-ESV; Center; Walker Products OE
2009MitsubishiLancer2.4LL4GASCenterCalif-ESV; B1S2; Center; Walker Products OE
2009MitsubishiLancer2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2009MitsubishiLancer2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2009MitsubishiLancer2.0LL4GASDownstreamNon Calif-ESV; B1S3; No Calif-ESV; Downstream; Walker Products OE
2009MitsubishiLancer2.0LL4GASCenterNon Calif-ESV; B1S2; No Calif-ESV; Center; Walker Products OE
2009MitsubishiLancer2.0LL4GASCenterCalif-ESV; B1S2; Center; Walker Products OE
2009MitsubishiLancer2.4LL4GASDownstreamNon-Calif-ESV/No Calif-ESV Downstream B1S3 Oxygen Sensor; Walker Products OE
2009MitsubishiLancer2.4LL4GASCenterNon-Calif-ESV, No Calif-ESV, Center, B1S2; Walker Products OE
2009MitsubishiLancer2.4LL4GASCenterCalif-ESV Center Oxygen Sensor B1S2; Walker Products OE
2009MitsubishiLancer2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2009MitsubishiLancer2.0LL4GASDownstreamNon-Calif-ESV/No Calif-ESV Downstream B1S3 Oxygen Sensor; Walker Products OE
2009MitsubishiLancer2.0LL4GASCenterNon-Calif-ESV, No Calif-ESV, Center, B1S2; Walker Products OE
2009MitsubishiLancer2.0LL4GASCenterCalif-ESV Center Oxygen Sensor B1S2; Walker Products OE
2009MitsubishiLancer2.4LL4GASDownstreamNon Calif-ESV; B1S3; Downstream; Walker Products OE
2009MitsubishiLancer2.4LL4GASCenterNon Calif-ESV; B1S2; Center; Walker Products OE
2009MitsubishiLancer2.0LL4GASDownstreamNon Calif-ESV; B1S3; Downstream; Walker Products OE
2009MitsubishiLancer2.0LL4GASCenterNon Calif-ESV; B1S2; Center; Walker Products OE
2009MitsubishiOutlander2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2009MitsubishiOutlander2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2009MitsubishiOutlander2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2008MitsubishiLancer2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2008MitsubishiLancer2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2008MitsubishiLancer2.0LL4GASDownstreamNon Calif-ESV; B1S3; No Calif-ESV; Downstream; Walker Products OE
2008MitsubishiLancer2.0LL4GASCenterCalif-ESV; B1S2; Center; Walker Products OE
2008MitsubishiLancer2.0LL4GASCenterNon Calif-ESV; B1S2; No Calif-ESV; Center; Walker Products OE
2008MitsubishiLancer2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2008MitsubishiLancer2.0LL4GASDownstreamNon-Calif-ESV/No Calif-ESV Downstream B1S3 Oxygen Sensor; Walker Products OE
2008MitsubishiLancer2.0LL4GASCenterCalif-ESV Center Oxygen Sensor B1S2; Walker Products OE
2008MitsubishiLancer2.0LL4GASCenterNon-Calif-ESV, No Calif-ESV, Center, B1S2; Walker Products OE
2008MitsubishiLancer2.0LL4GASDownstreamNon Calif-ESV; B1S3; Downstream; Walker Products OE
2008MitsubishiLancer2.0LL4GASCenterNon Calif-ESV; B1S2; Center; Walker Products OE
2008MitsubishiOutlander2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2008MitsubishiOutlander2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2008MitsubishiOutlander2.4LL4GASUpstreamFront 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.