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Delphi ES20134 Oxygen Sensor - Rear, Rear Left or Rear Right
| Brand | Delphi ES20134 |
|---|---|
| Position | Rear |
| Connector Shape | Square |
| Overall Length | 550.0 |
| Package Contents | Oxygen Sensor, Instruction Sheet |
| Position(s) | 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 | Cadillac, Chevrolet, GMC, Hummer, Pontiac, and Saturn · 82 vehicles |
Heated sensor. Helps the oxygen sensor reach operating temperature quickly.
Square connector. Simplifies a clean, secure electrical connection.
OE heritage. Built with decades of original-equipment experience.
Cross-references Bosch 15165, Bosch 15901 and DENSO Auto Parts 234-4252 for the same application. See all 24.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Delphi ES20134 Rear Oxygen Sensor
The Delphi ES20134 is a heated oxygen sensor built for rear sensor locations on select GM trucks, SUVs, and cars. It combines OE heritage with application-specific fitment for vehicles such as the Chevrolet Silverado 2500 HD, GMC Sierra 3500, and Cadillac CTS.
- Heated oxygen sensor for rear, rear left, and rear right positions
- 4-wire design with square connector shape
- 18 x 1.5 mm thread size for direct-thread installation
- Overall length: 550.0
- Package contents: oxygen sensor and instruction sheet
- Delphi part number ES20134
OE-Style Emissions Monitoring
Delphi builds this oxygen sensor using more than a century of OE experience and knowledge gained from supplying major automakers. The ES20134 is engineered for rear exhaust monitoring on applications including 2002-2006 Chevrolet Silverado 2500 HD, 2002-2006 GMC Sierra 3500, 2009-2015 Cadillac CTS, and 2008-2012 Chevrolet Malibu. It also cross-references Bosch 15165 for the same application.
Vehicle Fitment
- Fits 2009-2015 Cadillac CTS, rear.
- Fits 2008-2012 Chevrolet Malibu, rear right.
- Fits 2007-2010 Chevrolet Silverado 3500 HD, rear left.
- Fits 2007-2010 GMC Sierra 3500 HD, rear left.
- Fits 2009 Hummer H2, rear.
- Fits 2007-2009 Pontiac G6, rear right.
- Fits 2007-2009 Saturn Aura, rear right.
- Fits 2007 Chevrolet Silverado 1500 HD Classic, rear left.
- Fits 2007 Chevrolet Silverado 2500 HD Classic, rear left.
- Fits 2007 Chevrolet Silverado 3500 Classic, rear left.
- Fits 2007 GMC Sierra 1500 HD Classic, rear left.
- Fits 2007 GMC Sierra 2500 HD Classic, rear left.
- Fits 2007 GMC Sierra 3500 Classic, rear left.
- Fits 2005-2006 Chevrolet Silverado 1500 HD, rear left.
- Fits 2002-2003 Chevrolet Silverado 1500 HD, rear left.
- Fits 2002-2006 Chevrolet Silverado 2500 HD, rear left.
- Fits 2002-2006 Chevrolet Silverado 3500, rear left.
- Fits 2002-2006 Chevrolet Suburban 2500, rear left.
- Fits 2005-2006 GMC Sierra 1500 HD, rear left.
- Fits 2002-2003 GMC Sierra 1500 HD, rear left.
- Fits 2002-2006 GMC Sierra 2500 HD, rear left.
- Fits 2002-2006 GMC Sierra 3500, rear left.
- Fits 2002-2006 GMC Yukon XL 2500, rear left.
- Fits 2002-2004 Chevrolet Silverado 2500, rear left.
- Fits 2002-2004 GMC Sierra 2500, rear left.
Common Issues This Sensor Can Address
- Check engine light related to rear oxygen sensor performance
- Incorrect exhaust oxygen readings from a failing heated sensor
- Emissions monitor faults during inspection or diagnostics
- Rough or inconsistent fuel-trim feedback caused by sensor degradation
- Replacement needs after sensor contamination or age-related wear
Installation Notes
Confirm the exact rear, rear left, or rear right position for your vehicle before ordering. Match the 4-wire square connector, 18 x 1.5 mm thread size, and 550.0 overall length to the original sensor. Use the vehicle application tab or service information to verify placement on Chevrolet Silverado, GMC Sierra, Cadillac CTS, and related applications.
Quality Assurance
Delphi draws on OE supplier experience and original-equipment engineering knowledge to support consistent fit and function in aftermarket replacement parts. The ES20134 is built as a direct replacement oxygen sensor for the listed applications.
| Year | Make | Model | Submodel | Body Type | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2015 | Cadillac | CTS | — | — | — | Rear | — |
| 2014 | Cadillac | CTS | — | — | — | Rear | — |
| 2013 | Cadillac | CTS | — | — | — | Rear | — |
| 2012 | Cadillac | CTS | — | — | — | Rear | — |
| 2012 | Chevrolet | Malibu | — | — | — | Rear Right | — |
| 2011 | Cadillac | CTS | — | — | — | Rear | — |
| 2011 | Chevrolet | Malibu | — | — | — | Rear Right | — |
| 2010 | Cadillac | CTS | — | — | — | Rear | — |
| 2010 | Chevrolet | Malibu | — | — | — | Rear Right | — |
| 2010 | Chevrolet | Silverado 3500 HD | LT | Cab & Chassis | GAS | Rear Left | — |
| 2010 | GMC | Sierra 3500 HD | — | Cab & Chassis | GAS | Rear Left | — |
| 2009 | Cadillac | CTS | — | — | — | Rear | — |
| 2009 | Chevrolet | Malibu | — | — | — | Rear Right | — |
| 2009 | Chevrolet | Silverado 3500 HD | — | Cab & Chassis | — | Rear Left | — |
| 2009 | GMC | Sierra 3500 HD | — | Cab & Chassis | — | Rear Left | — |
| 2009 | Hummer | H2 | — | — | — | Rear | — |
| 2009 | Pontiac | G6 | — | — | — | Rear Right | — |
| 2009 | Saturn | Aura | — | — | — | Rear Right | — |
| 2008 | Chevrolet | Malibu | — | — | — | Rear Right | — |
| 2008 | Chevrolet | Silverado 3500 HD | — | Cab & Chassis | — | Rear Left | — |
| 2008 | GMC | Sierra 3500 HD | — | Cab & Chassis | — | Rear Left | — |
| 2008 | Pontiac | G6 | — | — | — | Rear Right | — |
| 2008 | Saturn | Aura | — | — | — | Rear Right | — |
| 2007 | Chevrolet | Silverado 1500 HD Classic | — | — | — | Rear Left | — |
| 2007 | Chevrolet | Silverado 2500 HD Classic | — | — | — | Rear Left | — |
| 2007 | Chevrolet | Silverado 3500 Classic | — | — | — | Rear Left | — |
| 2007 | Chevrolet | Silverado 3500 HD | — | Cab & Chassis | — | Rear Left | — |
| 2007 | GMC | Sierra 1500 HD Classic | — | — | — | Rear Left | — |
| 2007 | GMC | Sierra 2500 HD Classic | — | — | — | Rear Left | — |
| 2007 | GMC | Sierra 3500 Classic | — | — | — | Rear Left | — |
| 2007 | GMC | Sierra 3500 HD | — | Cab & Chassis | — | Rear Left | — |
| 2007 | Pontiac | G6 | — | — | — | Rear Right | — |
| 2007 | Saturn | Aura | — | — | — | Rear Right | — |
| 2006 | Chevrolet | Silverado 1500 HD | — | — | — | Rear Left | — |
| 2006 | Chevrolet | Silverado 2500 HD | — | — | — | Rear Left | — |
| 2006 | Chevrolet | Silverado 3500 | — | — | — | Rear Left | — |
| 2006 | Chevrolet | Suburban 2500 | — | — | — | Rear Left | — |
| 2006 | GMC | Sierra 1500 HD | — | — | — | Rear Left | — |
| 2006 | GMC | Sierra 2500 HD | — | — | — | Rear Left | — |
| 2006 | GMC | Sierra 3500 | — | — | — | Rear Left | — |
| 2006 | GMC | Yukon XL 2500 | — | — | — | Rear Left | — |
| 2005 | Chevrolet | Silverado 1500 HD | — | — | — | Rear Left | — |
| 2005 | Chevrolet | Silverado 2500 HD | — | — | — | Rear Left | — |
| 2005 | Chevrolet | Silverado 3500 | — | — | — | Rear Left | — |
| 2005 | Chevrolet | Suburban 2500 | — | — | — | Rear Left | — |
| 2005 | GMC | Sierra 1500 HD | — | — | — | Rear Left | — |
| 2005 | GMC | Sierra 2500 HD | — | — | — | Rear Left | — |
| 2005 | GMC | Sierra 3500 | — | — | — | Rear Left | — |
| 2005 | GMC | Yukon XL 2500 | — | — | — | Rear Left | — |
| 2004 | Chevrolet | Silverado 2500 | — | — | — | Rear Left | — |
| 2004 | Chevrolet | Silverado 2500 HD | — | — | — | Rear Left | — |
| 2004 | Chevrolet | Silverado 3500 | — | — | — | Rear Left | — |
| 2004 | Chevrolet | Suburban 2500 | — | — | — | Rear Left | — |
| 2004 | GMC | Sierra 2500 | — | — | — | Rear Left | — |
| 2004 | GMC | Sierra 2500 HD | — | — | — | Rear Left | — |
| 2004 | GMC | Sierra 3500 | — | — | — | Rear Left | — |
| 2004 | GMC | Yukon XL 2500 | — | — | — | Rear Left | — |
| 2003 | Chevrolet | Silverado 1500 HD | — | — | — | Rear Left | — |
| 2003 | Chevrolet | Silverado 2500 | — | — | — | Rear Left | — |
| 2003 | Chevrolet | Silverado 2500 HD | LT | — | — | Rear Left | — |
| 2003 | Chevrolet | Silverado 2500 HD | LS | — | — | Rear Left | — |
| 2003 | Chevrolet | Silverado 2500 HD | Base | — | — | Rear Left | — |
| 2003 | Chevrolet | Silverado 3500 | — | — | — | Rear Left | — |
| 2003 | Chevrolet | Suburban 2500 | — | — | — | Rear Left | — |
| 2003 | GMC | Sierra 1500 HD | — | — | — | Rear Left | — |
| 2003 | GMC | Sierra 2500 | — | — | — | Rear Left | — |
| 2003 | GMC | Sierra 2500 HD | — | — | — | Rear Left | — |
| 2003 | GMC | Sierra 3500 | — | — | — | Rear Left | — |
| 2003 | GMC | Yukon XL 2500 | — | — | — | Rear Left | — |
| 2002 | Chevrolet | Silverado 1500 HD | — | — | — | Rear Left | — |
| 2002 | Chevrolet | Silverado 2500 | — | — | — | Rear Left | — |
| 2002 | Chevrolet | Silverado 2500 HD | — | — | — | Rear Left | — |
| 2002 | Chevrolet | Silverado 3500 | — | — | — | Rear Left | — |
| 2002 | Chevrolet | Suburban 2500 | — | — | — | Rear Left | — |
| 2002 | GMC | Sierra 1500 HD | — | — | — | Rear Left | — |
| 2002 | GMC | Sierra 2500 | SLT | — | — | Rear Left | — |
| 2002 | GMC | Sierra 2500 | SLE | — | GAS | Rear Left | — |
| 2002 | GMC | Sierra 2500 | SL | — | GAS | Rear Left | — |
| 2002 | GMC | Sierra 2500 | Base | — | — | Rear Left | — |
| 2002 | GMC | Sierra 2500 HD | — | — | — | Rear Left | — |
| 2002 | GMC | Sierra 3500 | — | — | — | Rear Left | — |
| 2002 | GMC | Yukon XL 2500 | — | — | — | Rear Left | — |
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