HomeEmission Control > SensorsWalker 350-31010 Oxygen Sensor - Upstream
Part #: 350-31010

Walker 350-31010 Oxygen Sensor - Upstream

Walker Products Aftermarket, Upstream
27 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: Mazda and Ford, RX-7, Probe, 626, and MX-6
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 350-31010 Oxygen Sensor

The Walker 350-31010 oxygen sensor is designed specifically for select Ford and Mazda vehicles, including the Mazda 626, MX-6, RX-7, and Ford Probe. This non-heated oxygen sensor features a threaded mounting type and a radiused polygon male connector, ensuring precise fitment and reliable performance.

  • Wiring harness length: 19.41 inches
  • Wire gauge measurement: 20 gauge
  • Sensor type: Non-heated oxygen sensor
  • Wire quantity: Single wire
  • Connector shape: Radiused polygon
  • Connector gender: Male
  • Thread diameter: 18.0 mm
  • Overall length: 22.95 inches
  • Mounting type: Threaded

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing specific-fit emission control components for a range of vehicle makes and models. The line emphasizes compatibility and quality, offering sensors engineered to meet or exceed OEM specifications for reliable emissions monitoring and engine performance.

Product Description and Fitment

The Walker 350-31010 oxygen sensor is a specific-fit, non-heated sensor designed to replace factory-installed sensors on select Ford and Mazda models. Its 20-gauge single wire and radiused polygon male connector ensure a secure electrical connection. The threaded mounting type with an 18.0 mm thread diameter allows for straightforward installation in the exhaust system. With an overall length of 22.95 inches and a wiring harness length of 19.41 inches, this sensor is engineered to fit precisely in the designated locations on the Mazda 626, MX-6, RX-7, and Ford Probe.

Common Applications and Issues Addressed

  • Restores accurate oxygen level readings for optimal air-fuel mixture
  • Helps resolve engine performance issues related to faulty sensors
  • Reduces emissions by ensuring proper sensor function
  • Prevents check engine light triggers related to oxygen sensor faults
  • Improves fuel efficiency by maintaining correct sensor feedback

Installation Notes and Tips

Installation requires removal of the old oxygen sensor and threading the Walker 350-31010 sensor into the exhaust port. Ensure the connector matches the radiused polygon male type for proper electrical connection. Use appropriate tools to avoid damaging the 18.0 mm threaded mounting. Verify wiring harness length and routing to prevent strain or interference with other components.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet industry standards for durability and performance. While specific warranty details for part number 350-31010 are not provided here, Walker typically offers limited warranties covering defects in materials and workmanship. Refer to product documentation for exact warranty terms.

BrandWalker
Part Number350-31010
PositionWalker Products Aftermarket, Upstream
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length22.95
Sensor TypeNon Heated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity1
Wiring Harness Length19.41

This part fits 27 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1995MazdaRX-71.3LR2GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1995MazdaRX-71.3LR2GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1994MazdaRX-71.3LR2GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1994MazdaRX-71.3LR2GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1993MazdaRX-71.3LR2GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1993MazdaRX-71.3LR2GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1992FordProbe2.2LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1992FordProbe2.2LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1992Mazda6262.2LL4GASUpstreamNon-Turbo; B1S1; No Turbo; Upstream; Walker Products Aftermarket
1992Mazda6262.2LL4GASUpstreamNon-Turbo, No Turbo, Upstream, Bank 1 Sensor 1; Walker Products Aftermarket
1992Mazda6262.2LL4GASUpstreamNon-Turbo; B1S1; Upstream; Walker Products Aftermarket
1992MazdaMX-62.2LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1992MazdaMX-62.2LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1991FordProbe2.2LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1991FordProbe2.2LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1991Mazda6262.2LL4GASUpstreamNon-Turbo; B1S1; No Turbo; Upstream; Walker Products Aftermarket
1991Mazda6262.2LL4GASUpstreamNon-Turbo, No Turbo, Upstream, Bank 1 Sensor 1; Walker Products Aftermarket
1991Mazda6262.2LL4GASUpstreamNon-Turbo; B1S1; Upstream; Walker Products Aftermarket
1991MazdaMX-62.2LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1991MazdaMX-62.2LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1990FordProbe2.2LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1990FordProbe2.2LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1990Mazda6262.2LL4GASUpstreamNon-Turbo; B1S1; No Turbo; Upstream; Walker Products Aftermarket
1990Mazda6262.2LL4GASUpstreamNon-Turbo, No Turbo, Upstream, Bank 1 Sensor 1; Walker Products Aftermarket
1990Mazda6262.2LL4GASUpstreamNon-Turbo; B1S1; Upstream; Walker Products Aftermarket
1990MazdaMX-62.2LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1990MazdaMX-62.2LL4GASUpstreamFront 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.