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Walker 350-33019 Oxygen Sensor - Upstream
| Brand | Walker 350-33019 |
|---|---|
| Position | Upstream |
| Connector Gender | Male |
| Connector Shape | Radiused Polygon |
| Mounting Type | Flange Mount |
| Overall Length | 20.79 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 20 |
| Wire Quantity | 3 |
| Wiring Harness Length | 17.24 |
| Product line | Walker Products Aftermarket |
| Fits | Toyota · 4 vehicles |
OE replacement. Engineered as a direct-fit oxygen sensor for reliable diagnostic feedback.
Heated sensor. Helps the engine management system reach operating temperature faster.
Flange mount. Simplifies installation with a secure, application-specific design.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Walker 350-33019 Oxygen Sensor for Toyota Supra
Walker Products 350-33019 is a heated oxygen sensor built as a specific-fit OE replacement for select Toyota applications. It is engineered to provide the ECU with the feedback needed for proper fuel control and emissions monitoring, making it a direct-fit option for 1987-1990 Toyota Supra upstream service.
Key Features
- Heated oxygen sensor for faster operating response
- Specific-fit design for the correct application and mounting position
- 3-wire configuration with 20-gauge wiring
- Radiused polygon male connector for vehicle-side connection
- 18.0 mm thread diameter with flange mount design
- Wiring harness length: 17.24 in.; overall length: 20.79 in.
Product Details
Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors engineered for OE-style replacement use. Part number 350-33019 is built for upstream placement on the Toyota Supra and is intended to restore accurate exhaust-gas feedback to the engine control unit. For 1987-1990 Toyota Supra owners, this sensor supports the emissions and fuel-management system by helping the ECU read exhaust oxygen content correctly.
This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
What It Helps Address
- Check engine or malfunction indicator light related to oxygen sensor performance
- Rough running caused by incorrect air-fuel feedback
- Increased fuel consumption from inaccurate sensor readings
- Higher exhaust emissions from a degraded upstream sensor
- Fault codes stored in the ECU for sensor or related system issues
Installation Notes
Fits 1987-1990 Toyota Supra, upstream. Confirm connector shape, thread diameter, harness length, and mounting style before installation. Inspect the sensor wiring harness and connector for heat damage, corrosion, or physical wear, since damaged wiring can shorten sensor life and affect readings. Verify the upstream location on the vehicle before replacement.
Quality Assurance
Walker Products manufactures engine management sensors as OE-replacement components and operates under Automotive ISO9001/TS 16949 certification standards. The 350-33019 is application-specific for the Toyota Supra and built to deliver the diagnostic feedback expected by the ECU.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1990 | Toyota | Supra | 3.0L | L6 | GAS | Upstream | Install upstream oxygen sensor for optimal performance.; Walker Products Aftermarket |
| 1989 | Toyota | Supra | 3.0L | L6 | GAS | Upstream | Install upstream oxygen sensor for optimal performance.; Walker Products Aftermarket |
| 1988 | Toyota | Supra | 3.0L | L6 | GAS | Upstream | Install upstream oxygen sensor for optimal performance.; Walker Products Aftermarket |
| 1987 | Toyota | Supra | 3.0L | L6 | GAS | Upstream | Install upstream oxygen sensor for optimal performance.; Walker Products Aftermarket |
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