HomeEmission Control > SensorsWalker 350-32027 Oxygen Sensor - Upstream
Part #: 350-32027

Walker 350-32027 Oxygen Sensor - Upstream

Walker Products Aftermarket, Upstream
15 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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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products Aftermarket, Upstream
Fitment: Toyota, Celica, RAV4, and Camry
Easy Returns — Return within 60 days for a full refund
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Overview of Walker 350-32027 Oxygen Sensor for Toyota Vehicles

The Walker 350-32027 oxygen sensor is designed specifically for select Toyota models including the Camry, Celica, and RAV4. This non-heated sensor provides accurate emissions monitoring to help maintain engine performance and comply with emission standards.

  • Wiring harness length: 9.37 inches
  • Wire gauge measurement: 20 gauge
  • Sensor type: Non heated
  • Wire quantity: 2 wires
  • Connector shape: Radiused polygon
  • Connector gender: Male
  • Thread diameter: 18.0 mm
  • Overall length: 12.91 inches
  • Mounting type: Flange mount

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing reliable emission control components tailored to specific vehicle applications. The line emphasizes precise fitment and quality construction to meet or exceed OEM standards, ensuring compatibility and durability for Toyota Camry, Celica, and RAV4 models.

Product Description and Specifications

The Walker 350-32027 oxygen sensor features a flange mount design with an 18.0 mm thread diameter, allowing for secure installation in the exhaust system. Its 9.37-inch wiring harness and 20 gauge wires with a radiused polygon male connector ensure proper electrical connection and signal transmission. The sensor’s non-heated type is suitable for applications where heated sensors are not required, providing accurate oxygen level readings to the engine control unit.

Common Applications and Issues Addressed

  • Helps maintain optimal air-fuel mixture for efficient combustion
  • Reduces harmful emissions by monitoring exhaust gases
  • Prevents engine performance issues related to faulty oxygen sensors
  • Addresses check engine light triggers related to oxygen sensor faults
  • Supports emission compliance for Toyota Camry, Celica, and RAV4 vehicles

Installation Notes and Tips

When installing the Walker 350-32027 oxygen sensor, ensure the flange mount is properly seated and tightened to manufacturer torque specifications. Verify the connector matches the vehicle’s wiring harness with the radiused polygon male connector for a secure fit. Avoid damaging the sensor wiring during installation and confirm the sensor is compatible with the specific Toyota model year.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. While specific warranty details for part number 350-32027 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship to ensure reliable performance in Toyota Camry, Celica, and RAV4 vehicles.

BrandWalker
Part Number350-32027
PositionWalker Products Aftermarket, Upstream
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeFlange Mount
Overall Length12.91
Sensor TypeNon Heated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity2
Wiring Harness Length9.37

This part fits 15 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1999ToyotaCelica2.2LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1999ToyotaCelica2.2LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1998ToyotaCelica2.2LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1998ToyotaCelica2.2LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1997ToyotaCelica2.2LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1997ToyotaCelica2.2LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1997ToyotaRAV42.0LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket
1997ToyotaRAV42.0LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket
1997ToyotaRAV42.0LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket
1996ToyotaCamry2.2LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1996ToyotaCamry2.2LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1996ToyotaCelica2.2LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1996ToyotaCelica2.2LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1996ToyotaRAV42.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1996ToyotaRAV42.0LL4GASUpstreamFront 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.