HomeEmission Control > SensorsWalker 250-241256 Oxygen Sensor - Downstream
Part #: 250-241256

Walker 250-241256 Oxygen Sensor - Downstream

Walker Products OE, Downstream
5 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$81.59Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products OE, Downstream
Fitment: Honda, Civic
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker Oxygen Sensor for Honda Civic

The Walker 250-241256 oxygen sensor is designed specifically for Honda Civic models, ensuring precise emission control and optimal engine performance. This sensor plays a critical role in monitoring exhaust gases to maintain efficient fuel combustion.

  • Compatible with Honda Civic vehicles
  • Part number 250-241256 for accurate identification
  • Category: Emission Control > Sensors
  • Type: Oxygen Sensor
  • Manufactured by Walker under the Walker Products OE line

About the Walker Products OE Line

The Walker Products OE line focuses on providing original equipment quality parts that meet or exceed factory specifications. This ensures reliable fitment and performance for emission control components like the 250-241256 oxygen sensor, designed to integrate seamlessly with Honda Civic systems.

Product Description and Function

The Walker 250-241256 oxygen sensor monitors the oxygen levels in the exhaust stream of Honda Civic vehicles. By providing real-time data to the engine control unit (ECU), it helps regulate the air-fuel mixture for efficient combustion and reduced emissions. This sensor is essential for maintaining compliance with emission standards and supporting fuel economy.

Common Applications and Issues Addressed

  • Helps resolve rough idling and engine hesitation
  • Reduces increased fuel consumption caused by faulty sensors
  • Prevents check engine light triggers related to oxygen sensor faults
  • Supports emission system diagnostics and repairs
  • Improves overall engine performance and exhaust quality

Installation Notes and Tips

When installing the Walker 250-241256 oxygen sensor on a Honda Civic, ensure the engine is cool to avoid burns. Use proper tools to avoid damaging the sensor or threads. It is recommended to check the wiring harness and connectors for corrosion or damage before installation. Follow vehicle-specific torque specifications to secure the sensor properly.

Quality Assurance and Warranty

Walker oxygen sensors from the Walker Products OE line are manufactured to meet stringent quality standards. While specific warranty details are not provided here, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain the integrity of your Honda Civic’s emission control system.

This part fits 5 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2021HondaCivic2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2020HondaCivicType R2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2019HondaCivicType R2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2018HondaCivicType R2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2017HondaCivicType R2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific 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.