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Delphi ES20071 Oxygen Sensor - Front or Rear
| Brand | Delphi ES20071 |
|---|---|
| Position | Rear |
| Connector Shape | Square |
| Overall Length | 555.0 |
| Package Contents | Oxygen Sensor, Instruction Sheet |
| Position(s) | Front, Rear. For the position specific to your vehicle, refer to the Application tab. |
| Sensor Type | Heated |
| Thread Size | 18 x 1.5 mm |
| Wire Quantity | 4 |
| Fits | Toyota and Lexus · 31 vehicles |
Heated sensor. Delivers faster operation for more responsive emissions monitoring.
Square connector. Simplifies connection with a straightforward plug-in design.
OE heritage. Built from 100 years of OE experience and supplier knowledge.
Cross-references BBB Industries 13988, Bosch 13095 and Bosch 13136 for the same application. See all 55.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Delphi ES20071 Oxygen Sensor Overview
The Delphi ES20071 is a heated oxygen sensor built for precise exhaust monitoring in select Toyota, Lexus, and related applications. With OE heritage behind the design, this sensor supports accurate air-fuel feedback for rear and front positions where listed, including Toyota 4Runner, Tacoma, Previa, Land Cruiser, T100, Lexus LX450, and Toyota Land Cruiser applications.
Key Features
- Heated oxygen sensor for faster operating temperature and stable signal output
- 4-wire design for reliable sensor communication
- Square connector shape for application-specific fitment
- 18 x 1.5 mm thread size for direct exhaust mounting
- Overall length: 555.0
- Includes oxygen sensor and instruction sheet
- Fits front and rear positions where specified by vehicle application
Detailed Description
Delphi ES20071 is an OE-style oxygen sensor engineered from more than a century of original equipment experience. Delphi’s background supplying major automakers is reflected in the sensor’s construction, calibration focus, and fitment coverage. This part is listed for rear applications on 1993-2000 Toyota 4Runner, 1995-2000 Toyota Tacoma, 1996-1997 Lexus LX450, 1996-1997 Toyota Land Cruiser, 1994-1997 Toyota Previa, and 1993-1994 Toyota T100, plus front applications on 1994-1997 Toyota Previa. The Delphi ES20071 also cross-references Bosch 13095 for the same application.
What It Helps Address
- Check engine light related to oxygen sensor performance
- Incorrect air-fuel ratio readings from a worn sensor
- Reduced fuel control accuracy during closed-loop operation
- Slow sensor response after exhaust heat-up
- Emission test failures tied to sensor degradation
Installation Notes and Tips
Verify the exact position before ordering, since this part is listed for front and rear locations depending on the vehicle. Confirm thread size, connector shape, and wire count against the original sensor before installation. For Toyota 4Runner, Tacoma, Previa, Land Cruiser, T100, and Lexus LX450 fitment, match the application notes in the vehicle catalog to ensure the correct placement and emissions configuration.
Quality Assurance
Delphi builds this oxygen sensor using OE heritage and application knowledge developed through long-term original equipment experience. That background supports consistent fitment and signal performance for the listed Toyota and Lexus applications.
| Year | Make | Model | Submodel | Drive Type | Transmission | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2000 | Toyota | 4Runner | — | RWD | — | Rear | without California Emission System |
| 2000 | Toyota | 4Runner | — | 4WD | — | Rear | with California Emission System |
| 2000 | Toyota | Tacoma | SR5 | — | Manual | Rear | without California Emission System |
| 2000 | Toyota | Tacoma | Base | — | Manual | Rear | without California Emission System |
| 1999 | Toyota | 4Runner | — | RWD | — | Rear | without California Emission System |
| 1999 | Toyota | 4Runner | — | 4WD | — | Rear | with California Emission System |
| 1999 | Toyota | 4Runner | — | RWD | — | Rear | — |
| 1999 | Toyota | Tacoma | — | — | Manual | Rear | — |
| 1998 | Toyota | 4Runner | — | RWD | — | Rear | — |
| 1998 | Toyota | Tacoma | SR5 | — | Manual | Rear | — |
| 1998 | Toyota | Tacoma | Base | — | Manual | Rear | — |
| 1997 | Lexus | LX450 | — | — | — | Rear | — |
| 1997 | Toyota | 4Runner | — | RWD | — | Rear | — |
| 1997 | Toyota | Land Cruiser | — | — | — | Rear | — |
| 1997 | Toyota | Previa | — | — | — | Rear | — |
| 1997 | Toyota | Previa | — | — | — | Front | — |
| 1997 | Toyota | Tacoma | — | — | Manual | Rear | — |
| 1996 | Lexus | LX450 | — | — | — | Rear | — |
| 1996 | Toyota | 4Runner | — | RWD | — | Rear | — |
| 1996 | Toyota | Land Cruiser | — | — | — | Rear | — |
| 1996 | Toyota | Previa | — | — | — | Rear | — |
| 1996 | Toyota | Previa | — | — | — | Front | — |
| 1996 | Toyota | Tacoma | — | — | Manual | Rear | — |
| 1995 | Toyota | Land Cruiser | — | — | — | Rear | From 01/1995 |
| 1995 | Toyota | Previa | — | — | — | Rear | — |
| 1995 | Toyota | Previa | — | — | — | Front | — |
| 1995 | Toyota | Tacoma | — | — | Manual | Rear | — |
| 1994 | Toyota | Previa | — | — | — | Rear | — |
| 1994 | Toyota | Previa | — | — | — | Front | — |
| 1994 | Toyota | T100 | — | RWD | — | Rear | with California Emission System |
| 1993 | Toyota | T100 | — | — | — | Rear | with California Emission System |
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