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Delphi ES20140 Oxygen Sensor - Rear
| Brand | Delphi ES20140 |
|---|---|
| Position | Rear |
| Connector Shape | Square |
| Overall Length | 680.0 |
| Package Contents | Oxygen Sensor, Instruction Sheet |
| Sensor Type | Heated |
| Thread Size | 18 x 1.5 mm |
| Wire Quantity | 4 |
| Fits | Saturn · 25 vehicles |
Heated sensor. Helps the oxygen sensor reach operating temperature quickly.
Square connector. Designed for a secure, straightforward electrical connection.
OE heritage. Built with decades of original-equipment experience.
Cross-references BBB Industries 13055, DENSO Auto Parts 234-4618 and FEL-PRO 13365 for the same application. See all 15.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Delphi ES20140 Rear Oxygen Sensor
The Delphi ES20140 is a heated rear oxygen sensor built for direct-fit replacement on select Saturn applications. It uses a 4-wire design, square connector, and 18 x 1.5 mm thread size to match the original sensor interface on covered vehicles.
- Heated oxygen sensor for rear position applications
- 4-wire configuration for OE-style signal and heater circuit operation
- Square connector shape
- 18 x 1.5 mm thread size
- Overall length: 680.0
- Package contents: oxygen sensor and instruction sheet
OE Heritage and Fitment
Delphi draws on more than a century of OE experience and supplier knowledge used by major automakers. That background is reflected in the ES20140, which is built for Saturn SC1, Saturn SC2, Saturn SL, Saturn SL1, Saturn SL2, Saturn SW1, and Saturn SW2 rear oxygen sensor replacement across the listed model years. This part number, ES20140, is also cross-referenced with DENSO Auto Parts 234-4618 for the same application.
What This Sensor Helps Address
- Check engine light related to rear oxygen sensor performance
- Incorrect exhaust oxygen feedback after sensor aging or contamination
- Slow sensor response affecting emissions monitoring
- Fault codes tied to heater circuit or sensor signal issues
- Failed emissions inspection caused by a worn rear O2 sensor
Installation Notes
Verify the connector shape, wire count, thread size, and rear position before installation. The ES20140 is specified for rear placement on compatible Saturn SC1, SC2, SL, SL1, SL2, SW1, and SW2 models from 1996-1999 as listed. Follow the included instruction sheet and confirm the exhaust bung threads are clean and undamaged before threading in the sensor.
Quality Assurance
Delphi builds aftermarket parts using OE heritage and application knowledge developed through long-term supplier relationships with leading automakers. The ES20140 is engineered to meet the fit and function expectations of the original rear oxygen sensor replacement on the listed Saturn vehicles.
Compatible Vehicles
- Fits 1996-1999 Saturn SC1, rear
- Fits 1996-1999 Saturn SC2, rear
- Fits 1996-1999 Saturn SL, rear
- Fits 1996-1999 Saturn SL1, rear
- Fits 1996-1999 Saturn SL2, rear
- Fits 1999 Saturn SW1, rear
- Fits 1996-1999 Saturn SW2, rear
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1999 | Saturn | SC1 | Rear | — |
| 1999 | Saturn | SC2 | Rear | — |
| 1999 | Saturn | SL | Rear | — |
| 1999 | Saturn | SL1 | Rear | — |
| 1999 | Saturn | SL2 | Rear | — |
| 1999 | Saturn | SW1 | Rear | — |
| 1999 | Saturn | SW2 | Rear | — |
| 1998 | Saturn | SC1 | Rear | — |
| 1998 | Saturn | SC2 | Rear | — |
| 1998 | Saturn | SL | Rear | — |
| 1998 | Saturn | SL1 | Rear | — |
| 1998 | Saturn | SL2 | Rear | — |
| 1998 | Saturn | SW2 | Rear | — |
| 1997 | Saturn | SC1 | Rear | — |
| 1997 | Saturn | SC2 | Rear | — |
| 1997 | Saturn | SL | Rear | — |
| 1997 | Saturn | SL1 | Rear | — |
| 1997 | Saturn | SL2 | Rear | — |
| 1997 | Saturn | SW2 | Rear | — |
| 1996 | Saturn | SC1 | Rear | — |
| 1996 | Saturn | SC2 | Rear | — |
| 1996 | Saturn | SL | Rear | — |
| 1996 | Saturn | SL1 | Rear | — |
| 1996 | Saturn | SL2 | Rear | — |
| 1996 | Saturn | SW2 | Rear | — |
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