Homeโ€บ Emission Control > Sensorsโ€บ Walker 350-34641 Oxygen Sensor
Part #: 350-34641

Walker 350-34641 Oxygen Sensor

Walker Products Aftermarket, Downstream
82 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement โ€” Bolt-on fit, no modifications needed
Walker Products Aftermarket, Downstream
Fitment: Toyota, Scion, Lexus, and Pontiac, Yaris, xD, GS460, Vibe, xA, xB, Matrix, Echo, Prius, SC300, Supra, GS300, ES300, and Camry
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Overview of Walker 350-34641 Oxygen Sensor

The Walker 350-34641 oxygen sensor is designed for precise emission control in select Lexus, Pontiac, Scion, and Toyota vehicles. This heated oxygen sensor ensures accurate air-fuel mixture readings to maintain optimal engine performance and emissions compliance.

  • Heated oxygen sensor with 4-wire configuration
  • Specific fit for Lexus, Pontiac, Scion, and Toyota models including Camry, Prius, GS300, and Supra
  • 16.85-inch wiring harness length for flexible installation
  • Threaded mounting type with 18.0 mm thread diameter
  • Radiused polygon male connector for secure electrical connection
  • Overall length of 20.39 inches for proper fitment
  • Wire gauge measurement of 20 for reliable signal transmission

Detailed Product Description

The Walker 350-34641 oxygen sensor is a heated sensor designed to provide accurate oxygen level readings in the exhaust system. Featuring a 4-wire design, it includes a heating element that allows the sensor to reach operating temperature quickly, improving response time and reducing emissions during cold starts. The sensorโ€™s 16.85-inch wiring harness and radiused polygon male connector ensure a secure and precise fit, while the 18.0 mm threaded mounting type allows for straightforward installation. This sensor is specifically engineered for compatibility with various Lexus, Pontiac, Scion, and Toyota models such as the Camry, Echo, ES300, GS300, GS460, Matrix, Prius, SC300, Supra, Vibe, xA, xB, xD, and Yaris.

Walker Products Aftermarket Line

Walker Products Aftermarket offers a range of emission control components designed to meet or exceed OEM specifications. The 350-34641 oxygen sensor is part of this line, providing reliable performance and durability for specific vehicle applications. This product line focuses on delivering precise fitment and consistent sensor operation to support emission system efficiency and regulatory compliance.

Common Applications and Issues Addressed

  • Restores accurate air-fuel ratio readings for improved fuel efficiency
  • Helps resolve rough idling and engine hesitation caused by faulty sensors
  • Reduces excessive emissions and prevents failed emissions tests
  • Eliminates check engine light triggers related to oxygen sensor faults
  • Supports proper catalytic converter function by providing correct sensor data

Installation Notes and Tips

  • Ensure vehicle compatibility with the specific fitment list before installation
  • Use proper tools to avoid damaging the 18.0 mm threaded sensor mount
  • Verify connector type matches the vehicleโ€™s wiring harness (radiused polygon male)
  • Handle wiring harness carefully to prevent damage to the 16.85-inch cable
  • Follow manufacturer torque specifications for sensor installation

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors undergo rigorous testing to meet emission control standards and ensure durability. The 350-34641 sensor is manufactured to provide consistent performance throughout its service life. Warranty coverage details should be confirmed with the product documentation or supplier.

BrandWalker
Part Number350-34641
PositionWalker Products Aftermarket, Downstream
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length20.39
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length16.85

This part fits 82 vehicles. Search below:

YearMakeModelSubmodelDrive TypeLitersCylindersFuel TypePositionNotes
2015ToyotaYarisSE1.5LL4GASDownstreamFrom cylinder bank 1 Sensor 2 up to July of 2014, from July 2014 downstream.; Walker Products Aftermarket
2015ToyotaYarisLE1.5LL4GASDownstreamFrom cylinder bank 1 Sensor 2 up to July of 2014, from July 2014 downstream.; Walker Products Aftermarket
2015ToyotaYarisL1.5LL4GASDownstreamFrom cylinder bank 1 Sensor 2 up to July of 2014, from July 2014 downstream.; Walker Products Aftermarket
2015ToyotaYarisSE1.5LL4GASDownstreamUp to 07/2014; From 07/2014; Downstream; Bank 1 Sensor 2; Walker Products Aftermarket
2015ToyotaYarisLE1.5LL4GASDownstreamUp to 07/2014; From 07/2014; Downstream; Bank 1 Sensor 2; Walker Products Aftermarket
2015ToyotaYarisL1.5LL4GASDownstreamUp to 07/2014; From 07/2014; Downstream; Bank 1 Sensor 2; Walker Products Aftermarket
2015ToyotaYarisSE1.5LL4GASDownstreamUp to 07/2014, downstream oxygen sensor B1S2.; Walker Products Aftermarket
2015ToyotaYarisLE1.5LL4GASDownstreamUp to 07/2014, downstream oxygen sensor B1S2.; Walker Products Aftermarket
2015ToyotaYarisL1.5LL4GASDownstreamUp to 07/2014, downstream oxygen sensor B1S2.; Walker Products Aftermarket
2014ScionxD1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2014ToyotaYaris1.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2013ScionxD1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2013ToyotaYaris1.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2012ScionxD1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2012ToyotaYaris1.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2011LexusGS4604.6LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2011LexusGS4604.6LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2011ScionxD1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2011ToyotaYaris1.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2010LexusGS4604.6LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2010LexusGS4604.6LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2010ScionxD1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2010ToyotaYaris1.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2009LexusGS4604.6LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2009LexusGS4604.6LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2009ScionxD1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2009ToyotaYaris1.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2008LexusGS4604.6LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2008LexusGS4604.6LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2008ScionxD1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2008ToyotaYaris1.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2007ToyotaYaris1.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2006PontiacVibeBaseAWD1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2006ScionxA1.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2006ScionxB1.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2006ToyotaMatrixAWD1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2006ToyotaYaris1.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2005PontiacVibeBaseAWD1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2005ScionxA1.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2005ScionxB1.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2005ToyotaEcho1.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2005ToyotaMatrixAWD1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2004PontiacVibeBaseAWD1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2004ScionxA1.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2004ScionxB1.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2004ToyotaEcho1.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2004ToyotaMatrixXRAWD1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2004ToyotaMatrixBaseAWD1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2003PontiacVibeBaseAWD1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2003ToyotaEcho1.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2003ToyotaMatrixAWD1.8LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2003ToyotaPrius1.5LL4ELECTRIC/GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2002ToyotaEcho1.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2002ToyotaPrius1.5LL4ELECTRIC/GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2001ToyotaEcho1.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2001ToyotaPrius1.5LL4ELECTRIC/GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2000LexusSC3003.0LL6GASDownstreamDownstream oxygen sensor for cylinders 1-3.; Walker Products Aftermarket
2000LexusSC3003.0LL6GASDownstreamCylinder 1-3 Downstream Oxygen Sensor; Walker Products Aftermarket
2000ToyotaEcho1.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
1999LexusSC3003.0LL6GASDownstreamDownstream oxygen sensor for cylinders 1-3.; Walker Products Aftermarket
1999LexusSC3003.0LL6GASDownstreamCylinder 1-3 Downstream Oxygen Sensor; Walker Products Aftermarket
1998LexusSC3003.0LL6GASDownstreamDownstream oxygen sensor for cylinders 1-3.; Walker Products Aftermarket
1998LexusSC3003.0LL6GASDownstreamCylinder 1-3 Downstream Oxygen Sensor; Walker Products Aftermarket
1998ToyotaSupra3.0LL6GASUpstreamUpstream oxygen sensor for cylinders 4-6.; Walker Products Aftermarket
1997LexusGS3003.0LL6GASDownstreamDownstream oxygen sensor for cylinders 1-3.; Walker Products Aftermarket
1997LexusGS3003.0LL6GASDownstreamCylinder 1-3 Downstream Oxygen Sensor; Walker Products Aftermarket
1996LexusES3003.0LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products Aftermarket
1996LexusGS3003.0LL6GASDownstreamDownstream oxygen sensor for cylinders 1-3.; Walker Products Aftermarket
1996LexusGS3003.0LL6GASDownstreamCylinder 1-3 Downstream Oxygen Sensor; Walker Products Aftermarket
1996ToyotaCamry3.0LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products Aftermarket
1995LexusES3003.0LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products Aftermarket
1995LexusGS3003.0LL6GASDownstreamDownstream oxygen sensor for cylinders 1-3.; Walker Products Aftermarket
1995LexusGS3003.0LL6GASDownstreamCylinder 1-3 Downstream Oxygen Sensor; Walker Products Aftermarket
1995ToyotaCamry3.0LV6GASDownstreamDownstream oxygen sensor for vehicle installation.; Walker Products Aftermarket
1994LexusES3003.0LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products Aftermarket
1994LexusGS3003.0LL6GASDownstreamOxygen Sensor for California vehicles with ESV regulations.; Walker Products Aftermarket
1994ToyotaCamry3.0LV6GASDownstreamDownstream oxygen sensor for vehicle installation.; Walker Products Aftermarket
1993LexusES3003.0LV6GASDownstreamOxygen Sensor for California vehicles with ESV regulations.; Walker Products Aftermarket
1993LexusGS3003.0LL6GASDownstreamOxygen Sensor for California vehicles with ESV regulations.; Walker Products Aftermarket
1993ToyotaCamry3.0LV6GASDownstreamOxygen Sensor for California vehicles with ESV regulations.; Walker Products Aftermarket
1992LexusES3003.0LV6GASDownstreamOxygen Sensor for California vehicles with ESV regulations.; Walker Products Aftermarket
1992ToyotaCamry3.0LV6GASDownstreamOxygen Sensor for California vehicles with ESV regulations.; 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.