/live/media/DE/DE_ES20180_Fro.jpg)
Will it fit your vehicle?
Confirm before you buy. Free return shipping if it doesn't fit.
Delphi ES20180 Oxygen Sensor - Rear or Rear Right
| Brand | Delphi ES20180 |
|---|---|
| Position | Rear Right |
| Connector Shape | Flat |
| Overall Length | 670.0 |
| Package Contents | Oxygen Sensor, Instruction Sheet |
| Position(s) | Rear, Rear Right. 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 · 9 vehicles |
Heated sensor. Helps the oxygen sensor reach operating temperature quickly.
Flat connector. Simplifies hookup with a low-profile connector shape.
OE heritage. Built from 100 years of OE experience and supplier knowledge.
Cross-references Bosch 15620, Bosch 15683 and DENSO Auto Parts 234-4503 for the same application. See all 33.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Delphi ES20180 Oxygen Sensor Overview
The Delphi ES20180 is a heated oxygen sensor built for rear exhaust monitoring on select Toyota applications. It combines OE-based engineering with a 4-wire design, flat connector, and 18 x 1.5 mm thread size for direct replacement service on the listed vehicles.
Compatible With 2004-2010 Toyota Sienna, rear right, and 2004-2005 Toyota RAV4, rear. This Delphi oxygen sensor is a practical choice when replacing a worn rear O2 sensor on a Toyota Sienna or Toyota RAV4 with the confirmed fitment shown below.
Key Features
- Heated oxygen sensor for rear exhaust position monitoring
- 4-wire configuration with flat connector shape
- 18 x 1.5 mm thread size for the specified application
- Overall length: 670.0
- Package contents: oxygen sensor and instruction sheet
- Delphi part number ES20180
OE-Based Engineering
Delphi draws on more than a century of OE experience and supplier knowledge used by major automakers. That background is reflected in the ES20180, which is built as an aftermarket replacement with the sensor type, connector style, and mounting dimensions needed for the listed Toyota rear oxygen sensor applications. Cross-reference part numbers include DENSO 234-4503 and Bosch 15620 for the same application.
What This Sensor Helps Address
- Check engine light related to rear oxygen sensor performance
- Fault codes tied to slow sensor response or heater circuit issues
- Incorrect exhaust feedback from a deteriorated rear O2 sensor
- Emissions inspection failures caused by a failing sensor
- Driveability concerns linked to inaccurate exhaust oxygen readings
Installation Notes
Verify the position before ordering: this part is listed for rear right on 2004-2010 Toyota Sienna and rear on 2004-2005 Toyota RAV4. Confirm connector shape, wire count, and thread size against the original sensor, and follow the vehicle service procedure for exhaust sensor replacement. The Delphi ES20180 is intended for the exact applications shown in the fitment data.
Quality Assurance
Delphi builds aftermarket parts using OE heritage and application knowledge developed through long-term work with top automakers. The ES20180 reflects that OE-based approach for the specified Toyota rear oxygen sensor positions.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2010 | Toyota | Sienna | Rear Right | — |
| 2009 | Toyota | Sienna | Rear Right | — |
| 2008 | Toyota | Sienna | Rear Right | — |
| 2007 | Toyota | Sienna | Rear Right | — |
| 2006 | Toyota | Sienna | Rear Right | — |
| 2005 | Toyota | RAV4 | Rear | — |
| 2005 | Toyota | Sienna | Rear Right | — |
| 2004 | Toyota | RAV4 | Rear | — |
| 2004 | Toyota | Sienna | Rear Right | — |
| No rows match your filter. | ||||