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Delphi ES20103 Oxygen Sensor - Front, Rear, Rear Left or Rear Right
| Brand | Delphi ES20103 |
|---|---|
| Position | Rear |
| Connector Shape | Square |
| Overall Length | 500.0 |
| Package Contents | Oxygen Sensor, Instruction Sheet |
| Position(s) | Front, Rear, Rear Left, 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 | Scion, Lexus, Toyota, and Pontiac · 61 vehicles |
Heated sensor. Provides faster operation for more responsive emissions monitoring.
Square connector. Simplifies installation with a straightforward electrical connection.
OE heritage. Built with 100 years of OE experience and supplier knowledge.
Cross-references BBB Industries 13556, BBB Industries 15273 and Bosch 13353 for the same application. See all 69.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Delphi ES20103 Oxygen Sensor Overview
The Delphi ES20103 is a heated oxygen sensor built for precise exhaust monitoring in select Toyota, Lexus, Scion, Pontiac, and related applications. It uses OE-based engineering from Delphi’s long history supplying original equipment to major automakers, helping support accurate air-fuel feedback for emissions control.
Compatible With rear, front, rear left, and rear right positions depending on vehicle application, this oxygen sensor is a direct-fit replacement for a range of Toyota Camry, Toyota Prius, Lexus GS300, and Scion xB fitments.
Key Features
- Heated oxygen sensor design for faster operating temperature
- 4-wire configuration
- Square connector shape
- 18 x 1.5 mm thread size
- Overall length: 500.0
- Package contents: oxygen sensor and instruction sheet
- OE-informed construction from Delphi
Detailed Description
Delphi ES20103 oxygen sensor replacement is engineered for emissions control systems that rely on accurate exhaust oxygen readings. The heated sensor design helps the unit reach operating temperature efficiently, which supports stable feedback to the engine control system during normal driving and cold starts. With a 4-wire layout, square connector, and 18 x 1.5 mm thread size, this part is built for straightforward replacement in the correct application.
This part cross-references DENSO Auto Parts (e.g., 234-4069, 234-4623) for the same application. It is a strong fitment match for vehicles such as the Toyota Camry, Toyota Prius, and Lexus GS300 when the application calls for the listed position.
What It Helps Address
- Check engine light related to oxygen sensor performance
- Incorrect air-fuel ratio feedback
- Reduced emissions system efficiency
- Rough idle or drivability issues tied to sensor signal errors
- Failed emissions inspection caused by a worn rear or front sensor
Installation Notes and Tips
Verify the exact position before ordering, since this part is listed for front, rear, rear left, and rear right applications depending on the vehicle. Confirm connector shape, wire count, and thread size against the original sensor before installation. For fitment-specific examples, this part fits 2008-2014 Scion xD, rear; fits 2008-2011 Lexus GS460, rear right; fits 2007-2011 Toyota Yaris, rear; fits 2003-2006 Toyota Matrix, rear; and fits 2000-2005 Toyota Echo, rear.
Additional fitments include 2001-2003 Toyota Prius, rear; 1998 Toyota Supra, front; 1995-1997 Lexus GS300, rear; 1994-1996 Toyota Camry, rear; and 1992-1993 Toyota Camry, rear with California Emission System. Always match the application notes for your vehicle before installation.
Quality Assurance
Delphi builds aftermarket parts using OE heritage and knowledge developed through more than 100 years of original equipment experience. That background is reflected in the ES20103’s application-specific design and emissions-focused construction.
| Year | Make | Model | Submodel | Drive Type | Position | Notes |
|---|---|---|---|---|---|---|
| 2014 | Scion | xD | — | — | Rear | — |
| 2013 | Scion | xD | — | — | Rear | — |
| 2012 | Scion | xD | — | — | Rear | — |
| 2011 | Lexus | GS460 | — | — | Rear Right | — |
| 2011 | Lexus | GS460 | — | — | Rear Left | — |
| 2011 | Scion | xD | — | — | Rear | — |
| 2011 | Toyota | Yaris | — | — | Rear | — |
| 2010 | Lexus | GS460 | — | — | Rear Right | — |
| 2010 | Lexus | GS460 | — | — | Rear Left | — |
| 2010 | Scion | xD | — | — | Rear | — |
| 2010 | Toyota | Yaris | — | — | Rear | — |
| 2009 | Lexus | GS460 | — | — | Rear Right | — |
| 2009 | Lexus | GS460 | — | — | Rear Left | — |
| 2009 | Scion | xD | — | — | Rear | — |
| 2009 | Toyota | Yaris | — | — | Rear | — |
| 2008 | Lexus | GS460 | — | — | Rear Right | — |
| 2008 | Lexus | GS460 | — | — | Rear Left | — |
| 2008 | Scion | xD | — | — | Rear | — |
| 2008 | Toyota | Yaris | — | — | Rear | — |
| 2007 | Toyota | Yaris | — | — | Rear | — |
| 2006 | Pontiac | Vibe | — | AWD | Rear | — |
| 2006 | Scion | xA | — | — | Rear | — |
| 2006 | Scion | xB | — | — | Rear | — |
| 2006 | Toyota | Matrix | — | AWD | Rear | — |
| 2005 | Pontiac | Vibe | — | AWD | Rear | — |
| 2005 | Scion | xA | — | — | Rear | — |
| 2005 | Scion | xB | — | — | Rear | — |
| 2005 | Toyota | Echo | — | — | Rear | — |
| 2005 | Toyota | Matrix | — | AWD | Rear | — |
| 2004 | Pontiac | Vibe | — | AWD | Rear | — |
| 2004 | Scion | xA | — | — | Rear | — |
| 2004 | Scion | xB | — | — | Rear | — |
| 2004 | Toyota | Echo | — | — | Rear | — |
| 2004 | Toyota | Matrix | — | AWD | Rear | — |
| 2003 | Pontiac | Vibe | — | AWD | Rear | — |
| 2003 | Toyota | Echo | — | — | Rear | — |
| 2003 | Toyota | Matrix | — | AWD | Rear | — |
| 2003 | Toyota | Prius | — | — | Rear | — |
| 2002 | Toyota | Echo | — | — | Rear | — |
| 2002 | Toyota | Prius | — | — | Rear | — |
| 2001 | Toyota | Echo | — | — | Rear | — |
| 2001 | Toyota | Prius | — | — | Rear | — |
| 2000 | Toyota | Echo | — | — | Rear | — |
| 1998 | Toyota | Supra | Base | — | Front | Cylinders 4 through 6 |
| 1997 | Lexus | GS300 | — | — | Rear | — |
| 1996 | Lexus | ES300 | — | — | Rear | — |
| 1996 | Lexus | GS300 | — | — | Rear | — |
| 1996 | Toyota | Camry | — | — | Rear | — |
| 1995 | Lexus | ES300 | — | — | Rear | — |
| 1995 | Lexus | GS300 | — | — | Rear | — |
| 1995 | Toyota | Camry | — | — | Rear | — |
| 1994 | Lexus | ES300 | — | — | Rear | — |
| 1994 | Lexus | GS300 | — | — | Rear | with California Emission System |
| 1994 | Toyota | Camry | — | — | Rear | — |
| 1993 | Lexus | ES300 | — | — | N/A | with California Emission System; with Screw Type |
| 1993 | Lexus | GS300 | — | — | Rear | with California Emission System |
| 1993 | Toyota | Camry | — | — | Rear | with California Emission System |
| 1992 | Lexus | ES300 | — | — | N/A | with California Emission System; with Screw Type |
| 1992 | Toyota | Camry | SE | — | Rear | with California Emission System |
| 1992 | Toyota | Camry | LE | — | Rear | with California Emission System |
| 1992 | Toyota | Camry | DLX | — | Rear | with California Emission System |
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