OE Quality
60-Day Returns

Walker 350-31026 Oxygen Sensor - Upstream
Overview of Walker 350-31026 Oxygen Sensor
The Walker 350-31026 oxygen sensor is designed for specific vehicle applications including Dodge, Hyundai, Mitsubishi, and Plymouth models. This non-heated sensor provides accurate emissions control by monitoring oxygen levels in the exhaust system, helping maintain optimal engine performance and fuel efficiency.
- Wiring harness length: 28.07 inches
- Wire gauge measurement: 20 gauge
- Sensor type: Non heated
- Specific fit for select vehicle models
- Single wire configuration
- Radiused polygon female connector
- Thread diameter: 18.0 mm
- Overall length: 31.61 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 exact vehicle specifications. The product line emphasizes precise fitment and quality construction to meet or exceed OEM standards, ensuring compatibility and durability for vehicles such as the Dodge Colt, Hyundai Sonata, and Mitsubishi Eclipse.
Product Description and Specifications
The Walker 350-31026 oxygen sensor features a non-heated design with a single 20-gauge wire, making it suitable for vehicles that do not require heated sensors. Its 28.07-inch wiring harness and 31.61-inch overall length provide adequate reach for installation in the exhaust system. The sensor’s radiused polygon female connector and 18.0 mm threaded mounting ensure a secure and proper fit. This sensor is engineered specifically for models including the Dodge Colt, Hyundai Sonata, Mitsubishi Eclipse, Plymouth Laser, and others, ensuring precise compatibility and performance.
Common Applications and Issues Addressed
- Replacement for faulty or damaged oxygen sensors in Dodge, Hyundai, Mitsubishi, and Plymouth vehicles
- Helps resolve engine performance issues related to incorrect air-fuel mixture
- Assists in reducing emissions by providing accurate oxygen level readings
- Prevents check engine light triggers caused by sensor failure
- Supports fuel efficiency by maintaining proper combustion control
Installation Notes and Tips
Installation requires removal of the old oxygen sensor and threading the Walker 350-31026 sensor into the exhaust manifold or pipe. Ensure the connector matches the vehicle’s wiring harness with its radiused polygon female design. Use appropriate tools to avoid damaging the 18.0 mm threaded mounting. Verify wiring harness length and routing to prevent strain or interference. It is recommended to follow vehicle-specific service manuals for torque specifications and sensor location.
Quality Assurance and Warranty
Walker Products Aftermarket oxygen sensors are manufactured to meet industry standards for emission control components. The 350-31026 part number undergoes quality checks to ensure durability and reliable performance. While specific warranty details are not provided here, Walker typically offers coverage against manufacturing defects. Consult product documentation or authorized sources for warranty terms.
| Brand | Walker |
|---|---|
| Part Number | 350-31026 |
| Position | Walker Products Aftermarket, Upstream |
| Connector Gender | Female |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 31.61 |
| Sensor Type | Non Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 20 |
| Wire Quantity | 1 |
| Wiring Harness Length | 28.07 |
This part fits 104 vehicles. Search below:
| Year | Make | Model | Transmission | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 1993 | Hyundai | Excel | 1.5L | L4 | GAS | Upstream | Non Calif-ESV , To 07/16/93; B1S1; No Calif-ESV, al 07/16/93; Upstream; Walker Products Aftermarket | |
| 1993 | Hyundai | Excel | 1.5L | L4 | GAS | Upstream | Non Calif-ESV , To 07/16/93; No Calif-ESV, al 07/16/93; Upstream; B1S1; Walker Products Aftermarket | |
| 1993 | Hyundai | Excel | 1.5L | L4 | GAS | Upstream | Non Calif-ESV , To 07/16/93; B1S1; Upstream; Walker Products Aftermarket | |
| 1993 | Hyundai | Scoupe | 1.5L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket | |
| 1993 | Hyundai | Scoupe | 1.5L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket | |
| 1993 | Hyundai | Scoupe | 1.5L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket | |
| 1993 | Mitsubishi | Precis | 1.5L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket | |
| 1993 | Mitsubishi | Precis | 1.5L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket | |
| 1993 | Mitsubishi | Precis | 1.5L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket | |
| 1992 | Hyundai | Excel | 1.5L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket | |
| 1992 | Hyundai | Excel | 1.5L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket | |
| 1992 | Hyundai | Excel | 1.5L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket | |
| 1992 | Hyundai | Scoupe | 1.5L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket | |
| 1992 | Hyundai | Scoupe | 1.5L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket | |
| 1992 | Hyundai | Scoupe | 1.5L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket | |
| 1992 | Mitsubishi | Precis | 1.5L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket | |
| 1992 | Mitsubishi | Precis | 1.5L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket | |
| 1992 | Mitsubishi | Precis | 1.5L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket | |
| 1991 | Hyundai | Excel | 1.5L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket | |
| 1991 | Hyundai | Excel | 1.5L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket | |
| 1991 | Hyundai | Excel | 1.5L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket | |
| 1991 | Hyundai | Scoupe | 1.5L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket | |
| 1991 | Hyundai | Scoupe | 1.5L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket | |
| 1991 | Hyundai | Scoupe | 1.5L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket | |
| 1991 | Mitsubishi | Precis | 1.5L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket | |
| 1991 | Mitsubishi | Precis | 1.5L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket | |
| 1991 | Mitsubishi | Precis | 1.5L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket | |
| 1990 | Dodge | Colt | 1.8L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 1990 | Dodge | Colt | 1.6L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket | |
| 1990 | Dodge | Colt | Automatic | 1.5L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket |
| 1990 | Dodge | Colt | 1.8L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 1990 | Dodge | Colt | 1.6L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket | |
| 1990 | Dodge | Colt | Automatic | 1.5L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket |
| 1990 | Dodge | Colt | 1.6L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket | |
| 1990 | Dodge | Colt | Automatic | 1.5L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket |
| 1990 | Hyundai | Excel | 1.5L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket | |
| 1990 | Hyundai | Excel | 1.5L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket | |
| 1990 | Hyundai | Excel | 1.5L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket | |
| 1990 | Hyundai | Sonata | 2.4L | L4 | GAS | Upstream | Non Calif-ESV , To 7/1/90; B1S1; No Calif-ESV, al 07/01/90; Upstream; Walker Products Aftermarket | |
| 1990 | Hyundai | Sonata | 2.4L | L4 | GAS | Upstream | Non Calif-ESV , To 7/1/90; No Calif-ESV, al 07/01/90; Upstream; B1S1; Walker Products Aftermarket | |
| 1990 | Hyundai | Sonata | 2.4L | L4 | GAS | Upstream | Non Calif-ESV , To 7/1/90; B1S1; Upstream; Walker Products Aftermarket | |
| 1990 | Mitsubishi | Eclipse | 1.8L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket | |
| 1990 | Mitsubishi | Eclipse | 1.8L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket | |
| 1990 | Mitsubishi | Eclipse | 1.8L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket | |
| 1990 | Mitsubishi | Precis | 1.5L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket | |
| 1990 | Mitsubishi | Precis | 1.5L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket | |
| 1990 | Mitsubishi | Precis | 1.5L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket | |
| 1990 | Mitsubishi | Van | 2.4L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 1990 | Mitsubishi | Van | 2.4L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 1990 | Plymouth | Laser | 1.8L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket | |
| 1990 | Plymouth | Laser | 1.8L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket | |
| 1990 | Plymouth | Laser | 1.8L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket | |
| 1989 | Dodge | Colt | 1.8L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 1989 | Dodge | Colt | 1.5L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket | |
| 1989 | Dodge | Colt | 1.8L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 1989 | Dodge | Colt | 1.5L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket | |
| 1989 | Dodge | Colt | 1.5L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket | |
| 1989 | Hyundai | Sonata | 2.4L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket | |
| 1989 | Hyundai | Sonata | 2.4L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket | |
| 1989 | Hyundai | Sonata | 2.4L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket | |
| 1989 | Mitsubishi | Mirage | 1.5L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket | |
| 1989 | Mitsubishi | Mirage | 1.5L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket | |
| 1989 | Mitsubishi | Mirage | 1.5L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket | |
| 1989 | Mitsubishi | Van | 2.4L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 1989 | Mitsubishi | Van | 2.4L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 1988 | Dodge | Colt | 2.0L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 1988 | Dodge | Colt | 1.6L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 1988 | Dodge | Colt | 1.5L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 1988 | Dodge | Colt | 2.0L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 1988 | Dodge | Colt | 1.6L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 1988 | Dodge | Colt | 1.5L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 1988 | Mitsubishi | Mirage | 1.6L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 1988 | Mitsubishi | Mirage | 1.5L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 1988 | Mitsubishi | Mirage | 1.6L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 1988 | Mitsubishi | Mirage | 1.5L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 1988 | Mitsubishi | Van | 2.4L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 1988 | Mitsubishi | Van | 2.4L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 1987 | Dodge | Colt | 2.0L | L4 | GAS | Upstream | From 10/86; B1S1; Del 10/86; Upstream; Walker Products Aftermarket | |
| 1987 | Dodge | Colt | 1.6L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 1987 | Dodge | Colt | 1.5L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 1987 | Dodge | Colt | 2.0L | L4 | GAS | Upstream | From 10/86; Del 10/86; Upstream; B1S1; Walker Products Aftermarket | |
| 1987 | Dodge | Colt | 1.6L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 1987 | Dodge | Colt | 1.5L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 1987 | Dodge | Colt | 2.0L | L4 | GAS | Upstream | From 10/86; B1S1; Upstream; Walker Products Aftermarket | |
| 1987 | Hyundai | Excel | Manual | 1.5L | L4 | GAS | Upstream | To 5/87; B1S1; Al 5/87; Upstream; Walker Products Aftermarket |
| 1987 | Hyundai | Excel | Manual | 1.5L | L4 | GAS | Upstream | To 5/87; Al 5/87; Upstream; B1S1; Walker Products Aftermarket |
| 1987 | Hyundai | Excel | Manual | 1.5L | L4 | GAS | Upstream | To 5/87; B1S1; Upstream; Walker Products Aftermarket |
| 1987 | Mitsubishi | Galant | 2.4L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 1987 | Mitsubishi | Galant | 2.4L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 1987 | Mitsubishi | Mirage | 1.6L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 1987 | Mitsubishi | Mirage | 1.5L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 1987 | Mitsubishi | Mirage | 1.6L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 1987 | Mitsubishi | Mirage | 1.5L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 1987 | Mitsubishi | Precis | 1.5L | L4 | GAS | Upstream | To 5/87; B1S1; Al 5/87; Upstream; Walker Products Aftermarket | |
| 1987 | Mitsubishi | Precis | 1.5L | L4 | GAS | Upstream | To 5/87; Al 5/87; Upstream; B1S1; Walker Products Aftermarket | |
| 1987 | Mitsubishi | Precis | 1.5L | L4 | GAS | Upstream | To 5/87; B1S1; Upstream; Walker Products Aftermarket | |
| 1987 | Mitsubishi | Van | 2.4L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 1987 | Mitsubishi | Van | 2.4L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 1986 | Hyundai | Excel | 1.5L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 1986 | Hyundai | Excel | 1.5L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 1986 | Mitsubishi | Galant | 2.4L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 1986 | Mitsubishi | Galant | 2.4L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 1985 | Mitsubishi | Galant | 2.4L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 1985 | Mitsubishi | Galant | 2.4L | L4 | GAS | Upstream | Front 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.