HomeEmission Control > SensorsWalker 350-31033 Oxygen Sensor - Upstream
Part #: 350-31033

Walker 350-31033 Oxygen Sensor - Upstream

Walker Products Aftermarket, Upstream
6 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$46.71Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*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: Saturn, SC2, SL2, and SW2
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 350-31033 Oxygen Sensor for Saturn Vehicles

The Walker 350-31033 oxygen sensor is designed specifically for Saturn SC2, SL2, and SW2 models. This non-heated sensor provides precise emission control by monitoring exhaust gases, helping maintain optimal engine performance and compliance with emission standards.

  • Wiring harness length: 3.07 inches
  • Wire gauge measurement: 20 gauge
  • Sensor type: Non-heated oxygen sensor
  • Specific fit for Saturn SC2, SL2, SW2
  • Single wire configuration
  • Radiused polygon male connector
  • Thread diameter: 14.0 mm
  • Overall length: 6.61 inches
  • Threaded mounting type

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 Saturn models requiring this sensor.

Product Description and Specifications

The Walker 350-31033 oxygen sensor features a non-heated design with a single 20-gauge wire, making it suitable for specific Saturn SC2, SL2, and SW2 applications. Its 3.07-inch wiring harness length and radiused polygon male connector ensure a secure and proper connection. The sensor mounts via a threaded 14.0 mm diameter fitting, with an overall length of 6.61 inches, allowing for straightforward installation in the designated exhaust system location.

Common Applications and Issues Addressed

  • Helps regulate air-fuel mixture for efficient combustion
  • Reduces harmful emissions by providing accurate exhaust gas readings
  • Prevents engine performance issues related to faulty oxygen sensors
  • Addresses check engine light triggers related to oxygen sensor faults
  • Supports proper operation of the vehicle’s emission control system

Installation Notes and Tips

  • Ensure compatibility with Saturn SC2, SL2, or SW2 before installation
  • Use appropriate tools for threaded mounting to avoid damage
  • Verify connector type matches vehicle harness (radiused polygon male)
  • Handle sensor wiring carefully to prevent wire damage
  • Follow vehicle manufacturer torque specifications for sensor installation

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. The 350-31033 part number undergoes testing to ensure reliable performance and durability. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to support long-term use in Saturn SC2, SL2, and SW2 vehicles.

BrandWalker
Part Number350-31033
PositionWalker Products Aftermarket, Upstream
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length6.61
Sensor TypeNon Heated
Thread Diameter14.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity1
Wiring Harness Length3.07

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1994SaturnSC21.9LL4GASUpstreamCompatible with California-ESV vehicles, Upstream Oxygen Sensor; Walker Products Aftermarket
1994SaturnSC21.9LL4GASUpstreamCalifornia emissions ESV vehicles oxygen sensor; Walker Products Aftermarket
1994SaturnSL21.9LL4GASUpstreamCompatible with California-ESV vehicles, Upstream Oxygen Sensor; Walker Products Aftermarket
1994SaturnSL21.9LL4GASUpstreamCalifornia emissions ESV vehicles oxygen sensor; Walker Products Aftermarket
1994SaturnSW21.9LL4GASUpstreamCompatible with California-ESV vehicles, Upstream Oxygen Sensor; Walker Products Aftermarket
1994SaturnSW21.9LL4GASUpstreamCalifornia emissions ESV vehicles oxygen sensor; 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.