OE Quality
60-Day Returns

Walker 350-31033 Oxygen Sensor - Upstream
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.
| Brand | Walker |
|---|---|
| Part Number | 350-31033 |
| Position | Walker Products Aftermarket, Upstream |
| Connector Gender | Male |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 6.61 |
| Sensor Type | Non Heated |
| Thread Diameter | 14.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 20 |
| Wire Quantity | 1 |
| Wiring Harness Length | 3.07 |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1994 | Saturn | SC2 | 1.9L | L4 | GAS | Upstream | Compatible with California-ESV vehicles, Upstream Oxygen Sensor; Walker Products Aftermarket |
| 1994 | Saturn | SC2 | 1.9L | L4 | GAS | Upstream | California emissions ESV vehicles oxygen sensor; Walker Products Aftermarket |
| 1994 | Saturn | SL2 | 1.9L | L4 | GAS | Upstream | Compatible with California-ESV vehicles, Upstream Oxygen Sensor; Walker Products Aftermarket |
| 1994 | Saturn | SL2 | 1.9L | L4 | GAS | Upstream | California emissions ESV vehicles oxygen sensor; Walker Products Aftermarket |
| 1994 | Saturn | SW2 | 1.9L | L4 | GAS | Upstream | Compatible with California-ESV vehicles, Upstream Oxygen Sensor; Walker Products Aftermarket |
| 1994 | Saturn | SW2 | 1.9L | L4 | GAS | Upstream | California 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.