HomeEmission Control > SensorsWalker 250-24398 Oxygen Sensor - Center, Downstream or Upstream
Part #: 250-24398

Walker 250-24398 Oxygen Sensor - Center, Downstream or Upstream

Walker Products OE, Downstream
36 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: Honda and Acura, Element, Insight, Civic, and EL
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Overview of Walker 250-24398 Oxygen Sensor for Acura and Honda

The Walker 250-24398 oxygen sensor is designed specifically for select Acura and Honda models, including the Civic, EL, Element, and Insight. 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 design for reliable operation
  • Specific fit for Acura and Honda Civic, EL, Element, and Insight models
  • 10.16-inch wiring harness length with 20-gauge wire for durability
  • Threaded mounting type with 18.0 mm thread diameter for secure installation
  • Radiused polygon female connector for proper electrical connection
  • Overall sensor length of 13.7 inches for correct fitment

Detailed Features and Specifications

This Walker Products OE oxygen sensor (part number 250-24398) features a heated sensor type that allows for faster warm-up times and improved emissions monitoring. The sensor includes a 10.16-inch wiring harness with 20-gauge wires, providing a balance of flexibility and durability. The 4-wire configuration supports both the sensor signal and heater circuit, ensuring consistent performance. The radiused polygon female connector is designed to match factory specifications, preventing connection issues during installation. The threaded mounting type with an 18.0 mm diameter ensures a secure and leak-free fit in the exhaust system.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering emission control components that meet or exceed original equipment specifications. This oxygen sensor is part of that line, engineered to provide precise sensor readings and reliable operation for Acura and Honda vehicles. Using Walker Products OE parts helps maintain factory-level emissions compliance and engine efficiency.

Common Applications and Problem Resolution

  • Replacement for faulty or failing oxygen sensors in Acura Civic, EL, Element, and Insight
  • Resolves issues related to poor fuel economy caused by incorrect air-fuel mixture readings
  • Helps fix rough idling or engine hesitation due to sensor malfunction
  • Addresses check engine light triggers related to oxygen sensor faults
  • Improves emissions system performance to meet regulatory standards

Installation Notes and Tips

When installing the Walker 250-24398 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Confirm the radiused polygon female connector matches the vehicle’s wiring harness before connecting. Proper torque should be applied to the 18.0 mm threaded sensor to prevent exhaust leaks. It is recommended to clear any diagnostic trouble codes after installation to reset the engine control module.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards and original equipment specifications. This part number 250-24398 undergoes rigorous testing to ensure durability and accurate sensor output. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to support long-term reliability.

BrandWalker
Part Number250-24398
PositionWalker Products OE, Downstream
Connector GenderFemale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length13.7
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length10.16

This part fits 36 vehicles. Search below:

YearMakeModelSubmodelTransmissionLitersCylindersFuel TypePositionNotes
2011HondaElement2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2010HondaElement2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2009HondaElement2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2008HondaElement2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2007HondaElement2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2006HondaElement2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2006HondaInsightManual1.0LL3ELECTRIC/GASCenterInstall Bank 1 Sensor 2 Oxygen Sensor in center position.; Walker Products OE
2006HondaInsightManual1.0LL3ELECTRIC/GASCenterBank 1 Sensor 2 Center position; Walker Products OE
2005HondaCivic1.3LL4ELECTRIC/GASCenterNon Calif-ESV; B1S2; No Calif-ESV; Center; Walker Products OE
2005HondaCivic1.3LL4ELECTRIC/GASCenterNon-Calif-ESV, No Calif-ESV, Center, B1S2; Walker Products OE
2005HondaCivic1.3LL4ELECTRIC/GASCenterNon Calif-ESV; B1S2; Center; Walker Products OE
2005HondaElement2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2005HondaInsightManual1.0LL3ELECTRIC/GASCenterInstall Bank 1 Sensor 2 Oxygen Sensor in center position.; Walker Products OE
2005HondaInsightManual1.0LL3ELECTRIC/GASCenterBank 1 Sensor 2 Center position; Walker Products OE
2004HondaCivic1.3LL4ELECTRIC/GASCenterNon Calif-ESV; B1S2; No Calif-ESV; Center; Walker Products OE
2004HondaCivic1.3LL4ELECTRIC/GASCenterNon-Calif-ESV, No Calif-ESV, Center, B1S2; Walker Products OE
2004HondaCivic1.3LL4ELECTRIC/GASCenterNon Calif-ESV; B1S2; Center; Walker Products OE
2004HondaElement2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2004HondaInsightManual1.0LL3ELECTRIC/GASCenterInstall Bank 1 Sensor 2 Oxygen Sensor in center position.; Walker Products OE
2004HondaInsightManual1.0LL3ELECTRIC/GASCenterBank 1 Sensor 2 Center position; Walker Products OE
2003HondaCivic1.3LL4ELECTRIC/GASCenterNon Calif-ESV; B1S2; No Calif-ESV; Center; Walker Products OE
2003HondaCivic1.3LL4ELECTRIC/GASCenterNon-Calif-ESV, No Calif-ESV, Center, B1S2; Walker Products OE
2003HondaCivic1.3LL4ELECTRIC/GASCenterNon Calif-ESV; B1S2; Center; Walker Products OE
2003HondaElement2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2003HondaInsightManual1.0LL3ELECTRIC/GASCenterInstall Bank 1 Sensor 2 Oxygen Sensor in center position.; Walker Products OE
2003HondaInsightManual1.0LL3ELECTRIC/GASCenterBank 1 Sensor 2 Center position; Walker Products OE
2002HondaInsightManual1.0LL3ELECTRIC/GASCenterInstall Bank 1 Sensor 2 Oxygen Sensor in center position.; Walker Products OE
2002HondaInsightManual1.0LL3ELECTRIC/GASCenterBank 1 Sensor 2 Center position; Walker Products OE
2000AcuraELBase1.6LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2000AcuraELBase1.6LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2000HondaCivicEX1.6LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2000HondaCivicEX1.6LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1999AcuraELBase1.6LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1999AcuraELBase1.6LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1999HondaCivicEX1.6LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1999HondaCivicEX1.6LL4GASUpstreamFront 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.