HomeEmission Control > SensorsWalker 350-64090 Oxygen Sensor - Upstream
Part #: 350-64090

Walker 350-64090 Oxygen Sensor - Upstream

Walker Products Aftermarket, Upstream
48 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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*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 Aftermarket, Upstream
Fitment: Acura and Honda, TSX, RDX, Accord, and CR-V
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 350-64090 Oxygen Sensor

The Walker 350-64090 oxygen sensor is designed specifically for select Acura and Honda models, including the Accord, City, CR-V, Fit, RDX, and TSX. 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 Acura and Honda vehicles
  • 11.34-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 14.88 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 engineered to meet or exceed OEM specifications. The line emphasizes compatibility and durability, making the 350-64090 a reliable choice for maintaining factory-level emissions performance in Acura and Honda vehicles.

Product Description and Specifications

The Walker 350-64090 oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. Its 11.34-inch wiring harness and 20-gauge wires with four conductors ensure consistent electrical performance. The radiused polygon male connector provides a secure and precise fit, while the threaded mounting type with an 18.0 mm diameter allows for straightforward installation. With an overall length of 14.88 inches, this sensor is tailored for specific Acura and Honda models, ensuring proper placement and function.

Common Applications and Issues Addressed

  • Restores accurate oxygen level readings for engine control units
  • Helps resolve rough idling and poor fuel economy
  • Reduces emissions-related check engine light triggers
  • Improves catalytic converter efficiency
  • Prevents drivability issues caused by faulty sensors

Installation Notes and Tips

  • Ensure vehicle compatibility with Acura and Honda models such as Accord, CR-V, and TSX
  • Use proper tools to avoid damaging the 18.0 mm threaded mounting
  • Verify connector orientation matches the radiused polygon male design
  • Handle wiring harness carefully to maintain integrity of the 20-gauge wires
  • Follow vehicle manufacturer torque specifications during installation

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. The 350-64090 part number undergoes rigorous testing to comply with emission control requirements. Warranty details are provided by Walker and typically cover defects in materials and workmanship, supporting long-term use in Acura and Honda vehicles.

BrandWalker
Part Number350-64090
PositionWalker Products Aftermarket, Upstream
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length14.88
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length11.34

This part fits 48 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2020HondaCity1.5LL4UpstreamOE Replacement
2019HondaCity1.5LL4UpstreamOE Replacement
2018HondaCity1.5LL4UpstreamOE Replacement
2016HondaCity1.5LL4UpstreamOE Replacement
2015HondaCity1.5LL4UpstreamOE Replacement
2014AcuraTSX2.4LL4UpstreamB1S1; OE Replacement
2014HondaCity1.5LL4UpstreamOE Replacement
2014HondaFit1.5LL4UpstreamOE Replacement
2013AcuraTSX2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2013AcuraTSX2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2013HondaCity1.5LL4UpstreamOE Replacement
2012AcuraRDX2.3LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2012AcuraRDX2.3LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2012AcuraTSX2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2012AcuraTSX2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2012HondaAccord2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2012HondaAccord2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2012HondaCity1.5LL4UpstreamOE Replacement
2011AcuraRDX2.3LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2011AcuraRDX2.3LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2011AcuraTSX2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2011AcuraTSX2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2011HondaAccord2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2011HondaAccord2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2011HondaCity1.5LL4UpstreamOE Replacement
2011HondaCR-V2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2011HondaCR-V2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2010AcuraRDX2.3LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2010AcuraRDX2.3LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2010AcuraTSX2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2010AcuraTSX2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2010HondaAccord2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2010HondaAccord2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2010HondaCity1.5LL4UpstreamOE Replacement
2010HondaCR-V2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2010HondaCR-V2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2009AcuraRDX2.3LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2009AcuraRDX2.3LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2009AcuraTSX2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2009AcuraTSX2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2009HondaAccord2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2009HondaAccord2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2008AcuraRDX2.3LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2008AcuraRDX2.3LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2008HondaAccord2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2008HondaAccord2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2007AcuraRDX2.3LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2007AcuraRDX2.3LL4GASUpstreamFront oxygen sensor compatible with various 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.