Delphi ES10950 Oxygen Sensor

Delphi ES10950 Oxygen Sensor Overview

The Delphi ES10950 is a front oxygen sensor built for emission control service on select Saturn applications. It features a non-heated design, a single wire, a round connector, and a 14 x 1.25 mm thread size for the specified fitment.

Built with OE heritage and knowledge from Delphi’s long history supplying original equipment to major automakers, this oxygen sensor is made for direct replacement use on 1994 Saturn SC2, SL2, and SW2 models with California Emission System and 140 mm overall length.

Key Features

• Delphi ES10950 oxygen sensor for emission control repair
• Non-heated sensor type with 1-wire design
• Round connector shape
• 14 x 1.25 mm thread size
• 140.0 overall length
• Front position application
• Package contents: oxygen sensor and instruction sheet

Detailed Description

The Delphi ES10950 is an OE-style oxygen sensor engineered for front sensor replacement on 1994 Saturn SC2, Saturn SL2, and Saturn SW2 models equipped with the California Emission System and 140 mm overall length. As part of Delphi’s emission control sensor lineup, it reflects the company’s OE experience and manufacturing knowledge developed through decades of supplying automakers.

This part cross-references Gates 21503 for the same application. The ES10950 is also referenced by common aftermarket numbers used for the same fitment, including 5S3902 and 138-562. For buyers searching for a 1994 Saturn SC2 oxygen sensor, 1994 Saturn SL2 front oxygen sensor, or 1994 Saturn SW2 emission sensor, this part number is a direct match to the listed configuration.

Common Issues This Part May Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel mixture readings
• Reduced emissions system efficiency
• Rough idle or drivability concerns tied to sensor feedback
• Failed emissions inspection caused by a worn front O2 sensor

Installation Notes and Tips

Verify the vehicle uses the California Emission System and the 140 mm overall length before ordering. Confirm the front sensor location, thread size, connector style, and wire count against the original part to ensure proper replacement on the Saturn SC2, SL2, or SW2.

Inspect the exhaust bung and wiring route before installation, and compare the removed sensor to the Delphi ES10950 to confirm the connector shape and length match the application.

Quality Assurance

Delphi builds this oxygen sensor using OE experience and application knowledge drawn from its role as a supplier to major automakers. That OE heritage is reflected in the ES10950’s fitment-focused design and emission control application coverage.