HomeEmission Control > SensorsWalker 250-24742 Oxygen Sensor - Downstream or Downstream Left
Part #: 250-24742

Walker 250-24742 Oxygen Sensor - Downstream or Downstream Left

Walker Products OE, Downstream
⚙️ 32 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: Mitsubishi, Lancer, Outlander, and Outlander Sport
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Overview of Walker 250-24742 Oxygen Sensor for Mitsubishi Vehicles

The Walker Products OE 250-24742 oxygen sensor is designed specifically for select Mitsubishi models, including the Lancer, Outlander, and Outlander Sport. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle's engine management system.

  • Heated oxygen sensor with 4-wire configuration
  • Specific fit for Mitsubishi Lancer, Outlander, and Outlander Sport
  • 33.98-inch wiring harness length for flexible installation
  • Threaded mounting type with 18.0 mm thread diameter
  • Radiused polygon female connector for secure connection
  • Wire gauge measurement of 20 for reliable signal transmission
  • Overall length of 37.52 inches for proper fitment

Detailed Features and Specifications

This Walker oxygen sensor (part number 250-24742) features a heated sensor element that allows for faster warm-up times and improved emissions control under various operating conditions. The sensor includes a 4-wire design, which supports both the sensor signal and heater circuit, ensuring consistent performance. The wiring harness length of 33.98 inches provides sufficient reach for installation in the engine bay, while the 20-gauge wire ensures durability and signal integrity.

The sensor is designed with a radiused polygon female connector, which matches the original equipment specifications for a secure and reliable electrical connection. The threaded mounting type with an 18.0 mm thread diameter allows for straightforward installation and proper sealing in the exhaust system. With an overall length of 37.52 inches, this sensor fits precisely in the designated mounting location on compatible Mitsubishi models.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering direct-fit replacement parts that meet or exceed original equipment specifications. This oxygen sensor is part of that line, ensuring compatibility and performance consistent with factory-installed components. Using Walker Products OE parts helps maintain vehicle emissions compliance and engine efficiency for Mitsubishi Lancer, Outlander, and Outlander Sport models.

Common Applications and Problem Resolution

  • Restores accurate air-fuel ratio readings for improved fuel economy
  • Resolves check engine light issues related to oxygen sensor faults
  • Helps reduce harmful emissions by maintaining proper sensor function
  • Prevents engine performance problems caused by faulty sensor signals
  • Supports smooth engine idling and acceleration response

Installation Notes and Tips

When installing the Walker 250-24742 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness or connector. Verify the connector shape and gender match the vehicle’s harness before installation. Thread the sensor carefully to avoid cross-threading and tighten to manufacturer torque specifications. After installation, clear any diagnostic trouble codes and verify sensor operation with a scan tool.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards and undergo rigorous testing to ensure durability and performance. This part is designed to provide reliable operation over the expected service life. Warranty coverage details should be confirmed with the product documentation or supplier.

BrandWalker
Part Number250-24742
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 32 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2014MitsubishiLancer2.4LL4GASDownstreamCalif-ESV; B1S3; Downstream; Walker Products OE
2014MitsubishiLancer2.4LL4GASDownstreamCalif-ESV; Downstream; B1S3; Walker Products OE
2013MitsubishiOutlander3.0LV6GASDownstream LeftOE Base Sensor
2012MitsubishiLancer2.4LL4GASDownstreamCalif-ESV; B1S3; Downstream; Walker Products OE
2012MitsubishiLancer2.0LL4GASDownstreamCalif-ESV; B1S3; Downstream; Walker Products OE
2012MitsubishiLancer2.4LL4GASDownstreamCalif-ESV; Downstream; B1S3; Walker Products OE
2012MitsubishiLancer2.0LL4GASDownstreamCalif-ESV; Downstream; B1S3; Walker Products OE
2012MitsubishiOutlander3.0LV6GASDownstream LeftOE Base Sensor
2012MitsubishiOutlander Sport2.0LL4GASDownstreamB1S3; OE Base Sensor
2011MitsubishiLancer2.4LL4GASDownstreamCalif-ESV; B1S3; Downstream; Walker Products OE
2011MitsubishiLancer2.0LL4GASDownstreamCalif-ESV; B1S3; Downstream; Walker Products OE
2011MitsubishiLancer2.4LL4GASDownstreamCalif-ESV; Downstream; B1S3; Walker Products OE
2011MitsubishiLancer2.0LL4GASDownstreamCalif-ESV; Downstream; B1S3; Walker Products OE
2011MitsubishiOutlander3.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2011MitsubishiOutlander Sport2.0LL4GASDownstreamCalif-ESV; B1S3; Downstream; Walker Products OE
2011MitsubishiOutlander Sport2.0LL4GASDownstreamCalif-ESV; Downstream; B1S3; Walker Products OE
2010MitsubishiLancer2.4LL4GASDownstreamCalif-ESV; B1S3; Downstream; Walker Products OE
2010MitsubishiLancer2.0LL4GASDownstreamCalif-ESV; B1S3; Downstream; Walker Products OE
2010MitsubishiLancer2.4LL4GASDownstreamCalif-ESV; Downstream; B1S3; Walker Products OE
2010MitsubishiLancer2.0LL4GASDownstreamCalif-ESV; Downstream; B1S3; Walker Products OE
2010MitsubishiOutlander3.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2010MitsubishiOutlander2.4LL4DownstreamCalif-ESV; B1S3; Downstream; Walker Products OE
2010MitsubishiOutlander2.4LL4DownstreamCalif-ESV; Downstream; B1S3; Walker Products OE
2009MitsubishiLancer2.4LL4GASDownstreamCalif-ESV; B1S3; Downstream; Walker Products OE
2009MitsubishiLancer2.0LL4GASDownstreamCalif-ESV; B1S3; Downstream; Walker Products OE
2009MitsubishiLancer2.4LL4GASDownstreamCalif-ESV; Downstream; B1S3; Walker Products OE
2009MitsubishiLancer2.0LL4GASDownstreamCalif-ESV; Downstream; B1S3; Walker Products OE
2009MitsubishiOutlander3.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2008MitsubishiLancer2.0LL4GASDownstreamCalif-ESV; B1S3; Downstream; Walker Products OE
2008MitsubishiLancer2.0LL4GASDownstreamCalif-ESV; Downstream; B1S3; Walker Products OE
2008MitsubishiOutlander3.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2007MitsubishiOutlander3.0LV6GASDownstream LeftDownstream left oxygen sensor required.; 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.