Delphi ES10240 Oxygen Sensor

Delphi ES10240 Oxygen Sensor for Front Applications

The Delphi ES10240 is a heated oxygen sensor built for front sensor locations on a wide range of European vehicles. It combines OE-based engineering with the correct thread size, connector style, and overall length for direct replacement service.

Key Features

• Heated oxygen sensor for front position applications
• 3-wire design with square and round connector shape
• 18 x 1.5 mm thread size for proper exhaust fitment
• Overall length: 985.0 mm
• Package contents include the oxygen sensor and instruction sheet
• Delphi part number ES10240

OE-Based Design and Fitment

Delphi draws on more than 100 years of OE experience, and that heritage is reflected in the ES10240 oxygen sensor. This front heated O2 sensor is listed for applications such as 1985-1992 Volkswagen Golf, 1988-1992 Volkswagen Jetta, 1989-1991 Audi 100, 1988-1991 Audi 90, 1991-1993 Volvo 940, and 1990-1994 Audi V8 Quattro. It also cross-references Bosch 13019 and DENSO Auto Parts 234-3019 for the same application.

What This Oxygen Sensor Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel mixture readings at the front exhaust location
• Reduced fuel control caused by a worn heated O2 sensor
• Slow sensor response during cold starts
• Exhaust feedback issues on older Audi, Volkswagen, Jaguar, and Volvo models

Installation Notes and Tips

Verify the connector shape, wire count, thread size, and 985 mm overall length before installation. This ES10240 oxygen sensor is listed for front position use, so confirm the vehicle’s sensor location and compare the original connector and harness routing before replacement. Fitment includes 1990-1994 Audi V8 Quattro, 1988-1992 Audi 80, 1985-1992 Volkswagen Golf, 1988-1992 Volkswagen Jetta, and 1991-1993 Volvo 940.

Quality Assurance

Delphi builds aftermarket parts using OE heritage and application knowledge developed through long-term supplier experience with major automakers. The ES10240 is engineered to meet the fit and function expected for front heated oxygen sensor replacement service.