HomeEmission Control > SensorsWalker 350-31005 Oxygen Sensor - Upstream
Part #: 350-31005

Walker 350-31005 Oxygen Sensor - Upstream

Walker Products Aftermarket, Upstream
34 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products Aftermarket, Upstream
Fitment: Toyota and Lexus, MR2, Supra, GS300, and SC300
Easy Returns — Return within 60 days for a full refund
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Overview of Walker 350-31005 Oxygen Sensor

The Walker 350-31005 oxygen sensor is designed specifically for select Lexus and Toyota models, including the GS300, MR2, SC300, and Supra. This non-heated sensor features a precise flange mount design and a radiused polygon male connector, ensuring a secure and accurate fit for emission control systems.

  • Wiring harness length: 15.28 inches
  • Wire gauge measurement: 20 gauge
  • Sensor type: Non heated oxygen sensor
  • Specific fit for Lexus and Toyota models
  • Wire quantity: 1
  • Connector shape: Radiused polygon
  • Connector gender: Male
  • Thread diameter: 18.0 mm
  • Overall length: 18.82 inches
  • Mounting type: Flange mount

Detailed Product Description

This oxygen sensor from Walker Products Aftermarket is engineered to meet the exact specifications required by the emission control systems of Lexus GS300, Toyota MR2, SC300, and Supra vehicles. The non-heated sensor design is suitable for applications where a heated sensor is not necessary, providing reliable oxygen level readings to the engine control unit. The 20-gauge wire and 15.28-inch wiring harness length allow for proper connectivity and installation without excess slack or strain. The radiused polygon male connector and flange mount ensure a secure and precise fit, reducing the risk of leaks or sensor misalignment. With an 18.0 mm thread diameter and an overall length of 18.82 inches, this sensor is tailored for specific fitment rather than universal use.

Compatible Vehicles and Applications

  • Compatible with Lexus GS300 models requiring a non-heated oxygen sensor
  • Designed for Toyota MR2 vehicles with specific emission sensor needs
  • Fits Toyota SC300 models for accurate oxygen sensing
  • Suitable for Toyota Supra applications requiring a flange mount oxygen sensor

Installation Notes and Tips

  • Ensure the vehicle is cooled before sensor removal to avoid burns
  • Use appropriate tools to avoid damaging the 18.0 mm thread diameter
  • Verify connector orientation matches the radiused polygon male connector
  • Check wiring harness length (15.28 inches) for proper routing and secure connections
  • Confirm flange mount seating to prevent exhaust leaks

Quality Assurance and Warranty

Walker Products Aftermarket maintains strict quality control standards for their oxygen sensors, including the 350-31005 part. Each sensor undergoes testing to ensure accurate readings and durability under typical operating conditions. While specific warranty details are not provided here, Walker Products Aftermarket is known for producing reliable emission control components that meet OEM specifications.

BrandWalker
Part Number350-31005
PositionWalker Products Aftermarket, Upstream
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeFlange Mount
Overall Length18.82
Sensor TypeNon Heated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity1
Wiring Harness Length15.28

This part fits 34 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1995LexusSC3003.0LL6GASUpstreamCyl 4-6, Exc. Calif-ESV; OE Replacement
1995ToyotaMR22.2LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1995ToyotaMR22.2LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1995ToyotaSupra3.0LL6GASUpstreamCyl 1-3, Non Calif-ESV; Cil 1-3, no Calif-ESV; Upstream; Cyl 1-3; Walker Products Aftermarket
1995ToyotaSupra3.0LL6GASUpstreamCyl 4-6, Non Calif-ESV; Cil 4-6, para no Calif-ESV; Upstream; Cyl 4-6; Walker Products Aftermarket
1995ToyotaSupra3.0LL6GASUpstreamCyl 1-3, Non Calif-ESV; Upstream; Cyl 1-3; Walker Products Aftermarket
1995ToyotaSupra3.0LL6GASUpstreamCylinders 4-6, non-California ESV, upstream.; Walker Products Aftermarket
1994LexusGS3003.0LL6GASUpstreamNon Calif-ESV; No Calif-ESV; Upstream; Walker Products Aftermarket
1994LexusGS3003.0LL6GASUpstreamUpstream oxygen sensor for non-California ESV vehicles.; Walker Products Aftermarket
1994LexusSC3003.0LL6GASUpstreamCyl 4-6, To 1/94; Cil 4-6, al 1/94; Upstream; Cyl 4-6; Walker Products Aftermarket
1994LexusSC3003.0LL6GASUpstreamCyl 1-3, To 1/94; Cil 1-3, al 1/94; Upstream; Cyl 1-3; Walker Products Aftermarket
1994LexusSC3003.0LL6GASUpstreamCyl 4-6, To 1/94; Upstream; Cyl 4-6; Walker Products Aftermarket
1994LexusSC3003.0LL6GASUpstreamCyl 1-3, To 1/94; Upstream; Cyl 1-3; Walker Products Aftermarket
1994ToyotaMR22.2LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1994ToyotaMR22.2LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1994ToyotaSupra3.0LL6GASUpstreamCyl 1-3, Non Calif-ESV; Cil 1-3, no Calif-ESV; Upstream; Cyl 1-3; Walker Products Aftermarket
1994ToyotaSupra3.0LL6GASUpstreamCyl 4-6, Non Calif-ESV; Cil 4-6, para no Calif-ESV; Upstream; Cyl 4-6; Walker Products Aftermarket
1994ToyotaSupra3.0LL6GASUpstreamCyl 1-3, Non Calif-ESV; Upstream; Cyl 1-3; Walker Products Aftermarket
1994ToyotaSupra3.0LL6GASUpstreamCylinders 4-6, non-California ESV, upstream.; Walker Products Aftermarket
1993LexusGS3003.0LL6GASUpstreamNon Calif-ESV; No Calif-ESV; Upstream; Walker Products Aftermarket
1993LexusGS3003.0LL6GASUpstreamUpstream oxygen sensor for non-California ESV vehicles.; Walker Products Aftermarket
1993LexusSC3003.0LL6GASUpstreamUpstream oxygen sensor for cylinders 4-6.; Walker Products Aftermarket
1993LexusSC3003.0LL6GASUpstreamOxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket
1993ToyotaMR22.2LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1993ToyotaMR22.2LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1993ToyotaSupra3.0LL6GASUpstreamCyl 4-6, Non Calif-ESV; Cil 4-6, para no Calif-ESV; Upstream; Cyl 4-6; Walker Products Aftermarket
1993ToyotaSupra3.0LL6GASUpstreamCyl 1-3, Non Calif-ESV; Cil 1-3, no Calif-ESV; Upstream; Cyl 1-3; Walker Products Aftermarket
1993ToyotaSupra3.0LL6GASUpstreamCylinders 4-6, non-California ESV, upstream.; Walker Products Aftermarket
1993ToyotaSupra3.0LL6GASUpstreamCyl 1-3, Non Calif-ESV; Upstream; Cyl 1-3; Walker Products Aftermarket
1992LexusSC3003.0LL6GASUpstreamUpstream oxygen sensor for cylinders 4-6.; Walker Products Aftermarket
1992LexusSC3003.0LL6GASUpstreamOxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket
1992ToyotaMR22.2LL4GASUpstreamFrom 1/92; B1S1; Del 1/92; Upstream; Walker Products Aftermarket
1992ToyotaMR22.2LL4GASUpstreamFrom 1/92; Del 1/92; Upstream; B1S1; Walker Products Aftermarket
1992ToyotaMR22.2LL4GASUpstreamFrom 1/92; B1S1; Upstream; 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.