HomeEmission Control > SensorsWalker 350-34189 Oxygen Sensor - Downstream
Part #: 350-34189

Walker 350-34189 Oxygen Sensor - Downstream

Walker Products Aftermarket, Downstream
20 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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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 Aftermarket, Downstream
Fitment: Acura and Honda, Integra, CR-V, EL, and 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 350-34189 Oxygen Sensor

The Walker 350-34189 oxygen sensor is designed specifically for select Acura and Honda models, including the Civic, CR-V, EL, and Integra. This heated oxygen sensor provides accurate emissions control by monitoring exhaust gases and ensuring optimal engine performance.

  • Heated sensor type for faster response times
  • Specific fit for Acura and Honda vehicles
  • 12.72-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 16.26 inches for proper fitment

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing replacement emission control components that meet or exceed OEM specifications. The line emphasizes compatibility and durability, ensuring that parts like the 350-34189 oxygen sensor maintain vehicle emissions compliance and engine efficiency for Acura and Honda models.

Product Description and Attributes

The Walker 350-34189 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. Its 12.72-inch wiring harness and 20 gauge wires with four conductors ensure stable electrical signals to the engine control unit. The radiused polygon male connector provides a secure and precise fit, minimizing the risk of connection issues. The sensor mounts via a threaded design with an 18.0 mm diameter, matching factory specifications for a straightforward replacement. With an overall length of 16.26 inches, this sensor fits perfectly in the exhaust system of compatible Acura and Honda vehicles.

Common Applications and Issues Addressed

  • Restores accurate oxygen level readings for proper air-fuel mixture
  • Helps resolve rough idling and engine hesitation
  • Reduces increased emissions and failed emissions tests
  • Prevents poor fuel economy caused by faulty sensors
  • Eliminates check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

  • Ensure vehicle compatibility with Acura and Honda Civic, CR-V, EL, and Integra models
  • Use proper tools to avoid damaging the threaded mounting during installation
  • Verify connector type matches the vehicle’s wiring harness for a secure fit
  • Allow the sensor to reach operating temperature for accurate diagnostics
  • Follow manufacturer torque specifications when tightening the sensor

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The 350-34189 part number undergoes rigorous testing to comply with emission control requirements. Warranty details are provided by the manufacturer and typically cover defects in materials and workmanship under normal use conditions.

BrandWalker
Part Number350-34189
PositionWalker Products Aftermarket, Downstream
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length16.26
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length12.72

This part fits 20 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2001AcuraIntegra1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2001HondaCR-V2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2000AcuraELBase1.6LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2000AcuraIntegra1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2000HondaCivicEX1.6LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2000HondaCivicSi1.6LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2000HondaCR-V2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
1999AcuraELBase1.6LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
1999AcuraIntegra1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
1999HondaCivicEX1.6LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
1999HondaCivicSi1.6LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
1999HondaCR-V2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
1998AcuraELBase1.6LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
1998AcuraIntegra1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
1998HondaCivicEX1.6LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
1998HondaCR-V2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
1997AcuraELBase1.6LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
1997AcuraIntegra1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
1997HondaCR-V2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
1996AcuraIntegra1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket

* 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.