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Delphi ES20075 Oxygen Sensor - Rear Left
| Brand | Delphi ES20075 |
|---|---|
| Position | Rear Left |
| Connector Shape | Square |
| Overall Length | 550.0 |
| Package Contents | Oxygen Sensor, Instruction Sheet |
| Sensor Type | Heated |
| Thread Size | 18 x 1.5 mm |
| Wire Quantity | 4 |
| Fits | Chevrolet and GMC · 18 vehicles |
Heated sensor. Delivers faster operation for responsive emissions monitoring.
Square connector. Helps ensure a straightforward electrical connection.
OE heritage. Built with decades of original-equipment experience.
Cross-references Bosch 13029, DENSO Auto Parts 234-4024 and NTK 21510 for the same application. See all 12.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Delphi ES20075 Oxygen Sensor for Rear Left Applications
The Delphi ES20075 is a heated oxygen sensor built for rear left exhaust positions on select Chevrolet and GMC trucks and SUVs. It combines OE-based engineering with the fitment and connector details needed for direct replacement service on covered applications.
Key Features
- Heated oxygen sensor for rear left placement
- 4-wire design with square connector shape
- 18 x 1.5 mm thread size for the specified exhaust bung
- Overall length: 550.0
- Package contents: oxygen sensor and instruction sheet
- OE heritage informed by Delphi’s long history supplying automakers
Detailed Description
Delphi ES20075 is an emission control oxygen sensor engineered for rear left installation on select 1999-2001 Chevrolet Silverado 2500, 2001 Chevrolet Silverado 1500 HD, Silverado 2500 HD, Silverado 3500, 2000-2001 Chevrolet Suburban 2500, and 2001 GMC Sierra and Yukon applications. It also fits 2001 GMC Sierra 1500 HD, Sierra 2500 HD, Sierra 3500, Yukon, Yukon XL 1500, and 2000-2001 Yukon XL 2500. The heated sensor design supports faster operating temperature, while the 4-wire configuration and square connector help match the original vehicle interface on the listed applications. This part cross-references Bosch 13029 and DENSO Auto Parts 234-4024 for the same application.
What It Helps Address
- Check engine light related to rear oxygen sensor performance
- Incorrect exhaust oxygen signal readings
- Fuel trim issues caused by a worn sensor
- Emission test failures tied to sensor response problems
- Connector or thread mismatch during replacement service
Installation Notes and Tips
Verify rear left position, connector shape, wire count, and thread size before installation. Confirm the vehicle application against the listed fitment for 1999-2001 Chevrolet Silverado 2500, 2001 Chevrolet Silverado 1500 HD, and 2001 GMC Sierra and Yukon models. Inspect the exhaust bung threads and wiring routing before tightening the sensor to the specified 18 x 1.5 mm thread size.
Quality Assurance
Delphi builds aftermarket parts using OE experience and knowledge developed through decades of supplying original equipment to major automakers. That OE-based background is reflected in the ES20075 oxygen sensor’s construction and application-specific fitment.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2001 | Chevrolet | Silverado 1500 HD | Rear Left | — |
| 2001 | Chevrolet | Silverado 2500 | Rear Left | — |
| 2001 | Chevrolet | Silverado 2500 HD | Rear Left | — |
| 2001 | Chevrolet | Silverado 3500 | Rear Left | — |
| 2001 | Chevrolet | Suburban 2500 | Rear Left | — |
| 2001 | GMC | Sierra 1500 HD | Rear Left | — |
| 2001 | GMC | Sierra 2500 | Rear Left | — |
| 2001 | GMC | Sierra 2500 HD | Rear Left | — |
| 2001 | GMC | Sierra 3500 | Rear Left | — |
| 2001 | GMC | Yukon | Rear Left | — |
| 2001 | GMC | Yukon XL 1500 | Rear Left | — |
| 2001 | GMC | Yukon XL 2500 | Rear Left | — |
| 2000 | Chevrolet | Silverado 2500 | Rear Left | — |
| 2000 | Chevrolet | Suburban 2500 | Rear Left | — |
| 2000 | GMC | Sierra 2500 | Rear Left | — |
| 2000 | GMC | Yukon XL 2500 | Rear Left | — |
| 1999 | Chevrolet | Silverado 2500 | Rear Left | — |
| 1999 | GMC | Sierra 2500 | Rear Left | — |
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