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Walker 250-21029 Oxygen Sensor - Upstream
Overview of Walker 250-21029 Oxygen Sensor for Saturn Vehicles
The Walker 250-21029 oxygen sensor is designed specifically for select Saturn models, including SC, SC1, SC2, SL, SL1, SL2, SW1, and SW2. This non-heated oxygen sensor features a precise fit and reliable performance to support your vehicle's emission control system.
- Wiring harness length: 2.68 inches
- Wire gauge measurement: 20 gauge
- Sensor type: Non-heated oxygen sensor
- Specific fit for Saturn models
- Single wire configuration
- Radiused polygon female connector
- Thread diameter: 14.0 mm
- Overall length: 6.22 inches
- Threaded mounting type
Detailed Product Description
The Walker 250-21029 oxygen sensor is engineered to meet the exact specifications required by various Saturn models such as the SC, SL, and SW series. This non-heated sensor uses a single 20-gauge wire and a radiused polygon female connector to ensure a secure and accurate connection. With a wiring harness length of 2.68 inches and an overall length of 6.22 inches, it is designed for a threaded mounting type with a 14.0 mm thread diameter, providing a precise and stable installation.
This oxygen sensor is part of the Walker Products OE line, which focuses on delivering original equipment quality parts that match the fit, form, and function of the factory components. The Walker Products OE line is known for its adherence to strict manufacturing standards, ensuring compatibility and durability for emission control sensors like this oxygen sensor.
Common Applications and Issues Addressed
- Helps maintain optimal air-fuel mixture for Saturn SC and SL models
- Prevents engine performance issues related to faulty oxygen sensors
- Reduces emissions by providing accurate feedback to the engine control unit
- Addresses check engine light triggers related to oxygen sensor faults
- Supports fuel efficiency by ensuring proper sensor operation
Installation Notes and Tips
- Ensure the vehicle is cool before removing the old sensor to avoid burns
- Use appropriate tools for threaded mounting to prevent damage to the sensor or exhaust manifold
- Verify connector compatibility with the radiused polygon female connector on the vehicle wiring harness
- Check wiring harness length and routing to avoid tension or interference
- Follow torque specifications for the 14.0 mm thread diameter to secure the sensor properly
Quality Assurance and Warranty
The Walker 250-21029 oxygen sensor is manufactured under strict quality control standards as part of the Walker Products OE line. This ensures that the sensor meets or exceeds original equipment specifications for fit and function. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to provide confidence in product reliability.
| Brand | Walker |
| Part Number | 250-21029 |
| Position | Walker Products OE, Upstream |
| Connector Gender | Female |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 6.22 |
| Sensor Type | Non Heated |
| Thread Diameter | 14.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 20 |
| Wire Quantity | 1 |
| Wiring Harness Length | 2.68 |
This part fits 47 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1994 | Saturn | SC1 | 1.9L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 1994 | Saturn | SC1 | 1.9L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE |
| 1994 | Saturn | SC2 | 1.9L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products OE |
| 1994 | Saturn | SC2 | 1.9L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products OE |
| 1994 | Saturn | SC2 | 1.9L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products OE |
| 1994 | Saturn | SL | 1.9L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 1994 | Saturn | SL | 1.9L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE |
| 1994 | Saturn | SL1 | 1.9L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 1994 | Saturn | SL1 | 1.9L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE |
| 1994 | Saturn | SL2 | 1.9L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products OE |
| 1994 | Saturn | SL2 | 1.9L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products OE |
| 1994 | Saturn | SL2 | 1.9L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products OE |
| 1994 | Saturn | SW1 | 1.9L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 1994 | Saturn | SW1 | 1.9L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE |
| 1994 | Saturn | SW2 | 1.9L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products OE |
| 1994 | Saturn | SW2 | 1.9L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products OE |
| 1994 | Saturn | SW2 | 1.9L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products OE |
| 1993 | Saturn | SC1 | 1.9L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 1993 | Saturn | SC1 | 1.9L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE |
| 1993 | Saturn | SC2 | 1.9L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 1993 | Saturn | SC2 | 1.9L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE |
| 1993 | Saturn | SL | 1.9L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 1993 | Saturn | SL | 1.9L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE |
| 1993 | Saturn | SL1 | 1.9L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 1993 | Saturn | SL1 | 1.9L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE |
| 1993 | Saturn | SL2 | 1.9L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 1993 | Saturn | SL2 | 1.9L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE |
| 1993 | Saturn | SW1 | 1.9L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 1993 | Saturn | SW1 | 1.9L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE |
| 1993 | Saturn | SW2 | 1.9L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 1993 | Saturn | SW2 | 1.9L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE |
| 1992 | Saturn | SC | 1.9L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 1992 | Saturn | SC | 1.9L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE |
| 1992 | Saturn | SL | 1.9L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 1992 | Saturn | SL | 1.9L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE |
| 1992 | Saturn | SL1 | 1.9L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 1992 | Saturn | SL1 | 1.9L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE |
| 1992 | Saturn | SL2 | 1.9L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 1992 | Saturn | SL2 | 1.9L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE |
| 1991 | Saturn | SC | 1.9L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 1991 | Saturn | SC | 1.9L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE |
| 1991 | Saturn | SL | 1.9L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 1991 | Saturn | SL | 1.9L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE |
| 1991 | Saturn | SL1 | 1.9L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 1991 | Saturn | SL1 | 1.9L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE |
| 1991 | Saturn | SL2 | 1.9L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 1991 | Saturn | SL2 | 1.9L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE |
* 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.