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Delphi ES20098 Oxygen Sensor - Rear
| Brand | Delphi ES20098 |
|---|---|
| Position | Rear |
| Connector Shape | Square |
| Overall Length | 1425.0 |
| Package Contents | Oxygen Sensor, Instruction Sheet |
| Sensor Type | Heated |
| Thread Size | 18 x 1.5 mm |
| Wire Quantity | 4 |
| Fits | Chevrolet and Pontiac · 2 vehicles |
OE heritage. Built with 100 years of OE experience and supplier knowledge.
Heated sensor. Heats quickly for faster, more consistent readings.
Square connector. Simplifies installation with a straightforward electrical connection.
Cross-references Bosch 13483, DENSO Auto Parts 234-4616 and Gates 21519 for the same application. See all 15.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Delphi ES20098 Rear Oxygen Sensor
Delphi ES20098 is a heated rear oxygen sensor built for precise exhaust monitoring on select applications. It is a direct-fit emission control sensor for 1998 Chevrolet Cavalier and 1998 Pontiac Sunfire rear positions, with OE-based engineering drawn from Delphi’s long history supplying original equipment to major automakers.
Key Features
- Heated oxygen sensor for faster operating temperature and stable signal output
- 4-wire design with square connector shape
- 18 x 1.5 mm thread size for the specified application
- Overall length: 1425.0
- Rear position sensor for emission control monitoring
- Package contents: oxygen sensor and instruction sheet
Detailed Description
The Delphi ES20098 oxygen sensor is engineered for rear exhaust placement and is built around OE heritage and application knowledge. For 1998 Chevrolet Cavalier and 1998 Pontiac Sunfire rear sensor replacement, this part supports accurate exhaust feedback to the vehicle’s engine management system. The heated design helps the sensor reach operating temperature quickly, which is important for consistent emissions monitoring after startup and during normal driving. This part cross-references Bosch 13483 for the same application.
What It Helps Address
- Check engine light related to rear oxygen sensor performance
- Faulty exhaust oxygen readings affecting emissions monitoring
- Slow sensor warm-up after cold starts
- Rough or inconsistent fuel control caused by inaccurate feedback
- Failed emissions inspection tied to sensor output issues
Installation Notes and Tips
Verify rear sensor placement before installation and confirm the connector shape, wire count, and thread size match the original unit. Inspect the exhaust bung threads and wiring routing before tightening the sensor. For 1998 Chevrolet Cavalier and 1998 Pontiac Sunfire rear applications, compare the original sensor length and connector orientation to ensure proper fitment. Use the included instruction sheet during installation.
Quality Assurance
Delphi builds this sensor using OE experience and supplier knowledge developed over decades of original equipment production. That background is reflected in the design and application-specific engineering of the ES20098.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1998 | Chevrolet | Cavalier | Rear | — |
| 1998 | Pontiac | Sunfire | Rear | — |
| No rows match your filter. | ||||