/live/media/DE/DE_ES20416_Fro.jpg)
Will it fit your vehicle?
Confirm before you buy. Free return shipping if it doesn't fit.
Delphi ES20416 Oxygen Sensor - Front
| Brand | Delphi ES20416 |
|---|---|
| Position | Front |
| Connector Shape | Flat |
| Overall Length | 560.0 |
| Package Contents | Oxygen Sensor, Instruction Sheet |
| Sensor Type | Heated |
| Thread Size | 18 x 1.5 mm |
| Wire Quantity | 4 |
| Fits | Buick, Chevrolet, and Cadillac · 36 vehicles |
Heated sensor. Provides faster operation for dependable emissions monitoring.
Flat connector. Simplifies installation with a straightforward electrical connection.
OE heritage. Built with 100 years of OE experience and supplier knowledge.
Cross-references BBB Industries 16737, Bosch 16734 and DENSO Auto Parts 234-4529 for the same application. See all 7.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Delphi ES20416 Front Oxygen Sensor
The Delphi ES20416 is a heated front oxygen sensor built for precise exhaust monitoring on select Buick, Chevrolet, and Cadillac applications. It draws on Delphi’s OE heritage and decades of supplier experience to deliver the sensor response and fitment detail needed for emissions control service.
Key Features
- Heated oxygen sensor for faster operating temperature and stable signal output
- 4-wire design with flat connector shape
- 18 x 1.5 mm thread size for direct exhaust installation
- 560.0 overall length for the specified front sensor location
- Includes oxygen sensor and instruction sheet
- Delphi ES20416 replacement for front oxygen sensor service
Detailed Product Overview
Built for the front position, this Delphi oxygen sensor is specified for 2011-2021 Buick Encore, Chevrolet Trax, Chevrolet Sonic, Chevrolet Cruze, Chevrolet Cruze Limited, Chevrolet Volt, and Cadillac ELR applications listed in the fitment data. It is a heated sensor with a 4-wire layout and flat connector, making it a direct-match service part for vehicles that rely on accurate air-fuel feedback and emissions monitoring. The Delphi ES20416 is also cross-referenced to Bosch 16734 and DENSO Auto Parts 234-4529 for the same application.
What This Sensor Helps Address
- Check engine lights related to oxygen sensor performance
- Incorrect air-fuel ratio readings at the front exhaust location
- Reduced emissions system accuracy
- Rough idle or drivability concerns tied to sensor signal issues
- Failed emissions inspection caused by a worn front O2 sensor
Installation Notes and Tips
Verify the front sensor location, connector style, thread size, and overall length before installation. This part is listed for front applications only, including Fits 2013-2021 Buick Encore, front; Fits 2015-2021 Chevrolet Trax, front; Fits 2018-2020 Chevrolet Sonic, front; Fits 2012-2013 Chevrolet Sonic, front; Fits 2017 Chevrolet Sonic, front, 21in Length; Fits 2014-2016 Cadillac ELR, front; Fits 2016 Chevrolet Cruze Limited, front, 21in Length; Fits 2011-2015 Chevrolet Cruze, front; and Fits 2011-2015 Chevrolet Volt, front. Confirm the original sensor connector and exhaust mounting point match the vehicle before service.
Quality Assurance
Delphi builds this replacement sensor with OE experience and supplier knowledge developed through work with major automakers. That OE background is reflected in the sensor design, connector configuration, and application-specific fitment support for front oxygen sensor replacement on the listed vehicles.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2021 | Buick | Encore | 1.4L | L4 | Front | — |
| 2021 | Chevrolet | Trax | 1.4L | L4 | Front | — |
| 2020 | Buick | Encore | — | — | Front | — |
| 2020 | Chevrolet | Sonic | — | — | Front | — |
| 2020 | Chevrolet | Trax | — | — | Front | — |
| 2019 | Buick | Encore | — | — | Front | — |
| 2019 | Chevrolet | Sonic | — | — | Front | — |
| 2019 | Chevrolet | Trax | — | — | Front | — |
| 2018 | Buick | Encore | — | — | Front | — |
| 2018 | Chevrolet | Sonic | — | — | Front | — |
| 2018 | Chevrolet | Trax | — | — | Front | — |
| 2017 | Buick | Encore | — | — | Front | — |
| 2017 | Chevrolet | Sonic | — | — | Front | 21in Length |
| 2017 | Chevrolet | Trax | — | — | Front | — |
| 2016 | Buick | Encore | — | — | Front | — |
| 2016 | Cadillac | ELR | — | — | Front | — |
| 2016 | Chevrolet | Cruze Limited | — | — | Front | 21in Length |
| 2016 | Chevrolet | Trax | — | — | Front | — |
| 2015 | Buick | Encore | — | — | Front | — |
| 2015 | Cadillac | ELR | — | — | Front | — |
| 2015 | Chevrolet | Cruze | — | — | Front | — |
| 2015 | Chevrolet | Trax | — | — | Front | — |
| 2015 | Chevrolet | Volt | — | — | Front | — |
| 2014 | Buick | Encore | — | — | Front | — |
| 2014 | Cadillac | ELR | — | — | Front | — |
| 2014 | Chevrolet | Cruze | — | — | Front | — |
| 2014 | Chevrolet | Volt | — | — | Front | — |
| 2013 | Buick | Encore | — | — | Front | — |
| 2013 | Chevrolet | Cruze | — | — | Front | — |
| 2013 | Chevrolet | Sonic | — | — | Front | — |
| 2013 | Chevrolet | Volt | — | — | Front | — |
| 2012 | Chevrolet | Cruze | — | — | Front | — |
| 2012 | Chevrolet | Sonic | — | — | Front | — |
| 2012 | Chevrolet | Volt | — | — | Front | — |
| 2011 | Chevrolet | Cruze | — | — | Front | — |
| 2011 | Chevrolet | Volt | — | — | Front | — |
| No rows match your filter. | ||||||