Delphi ES10915 Oxygen Sensor - Front

Delphi ES10915 Oxygen Sensor for Ford Focus

The Delphi ES10915 is a heated oxygen sensor built for front-position exhaust monitoring on select Ford Focus models. It combines OE-based engineering with the correct connector, thread size, and wire configuration for a direct-fit replacement.

Fits 2003-2007 Ford Focus, front.

Key Features

• Heated oxygen sensor for faster sensor operation and exhaust feedback
• 4-wire design with square connector shape
• 18 x 1.5 mm thread size for the specified application
• 460.0 overall length
• Front position fitment for 2003-2007 Ford Focus
• Includes oxygen sensor and instruction sheet

Detailed Description

Delphi ES10915 is an emission control oxygen sensor engineered for front placement on 2003-2007 Ford Focus models. Delphi draws on more than a century of OE experience and supplier knowledge, bringing OE-style fit and function to the aftermarket. The heated sensor design helps the engine management system monitor exhaust oxygen levels efficiently, supporting accurate air-fuel control and emissions performance. This part cross-references DENSO Auto Parts 234-4375 for the same application.

For buyers searching for a Ford Focus front oxygen sensor, Delphi ES10915 offers the specified 4-wire, square-connector configuration with the correct 18 x 1.5 mm thread size. It is a practical replacement choice when servicing the front O2 sensor on the 2003-2007 Ford Focus.

Common Issues This Part May Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel mixture readings from a failing front sensor
• Reduced emissions monitoring accuracy
• Rough idle or drivability concerns tied to exhaust feedback
• Sensor response problems caused by age or contamination

Installation Notes and Tips

Confirm the vehicle is a 2003-2007 Ford Focus with front sensor placement before ordering. Match the connector shape, wire count, thread size, and overall length to the original part. Inspect the exhaust bung threads and wiring routing during installation, and follow the included instruction sheet for proper replacement steps.

Quality Assurance

Delphi builds this oxygen sensor using OE heritage and supplier experience developed through work with major automakers. The ES10915 is made to meet the application-specific requirements of the listed Ford Focus fitment and supports dependable emission control service.