Delphi FP10302 Fuel Injection Pressure Regulator

Fuel Pressure Control for OE-Style Performance

The Delphi FP10302 fuel injection pressure regulator helps maintain consistent fuel delivery in the fuel injection system. Built with a metal body and OE-focused engineering, it supports stable fuel pressure for a wide range of BMW, Volkswagen, Volvo, and Hyundai applications.

Compatible with select BMW 325i, 535i, 735i, and M3 applications, as well as Volkswagen Golf, Jetta, Corrado, and Cabriolet models, this regulator is a direct-fit style replacement for vehicles that require a 43 psi system pressure specification. The Delphi FP10302 is also cross-referenced to Beck/Arnley 158-0242 and Dorman OE Solutions 800-172 for the same application.

Key Features

• Fuel injection pressure regulator for air and fuel delivery systems
• Metal construction for durable under-hood service
• Push-in inlet and hose outlet configuration
• Single inlet and single outlet design
• Bolt-on mounting type for OE-style installation
• Fixed 43 psi system pressure specification
• No gauge port and non-adjustable design
• Delphi FP10302 replacement part number for targeted fitment searches

Detailed Description

The Delphi FP10302 is engineered for vehicles that rely on precise fuel pressure control to support proper injector operation and consistent engine performance. With a 13.0 mm push-in inlet, 9.0 mm hose outlet, and metal housing, it matches the needs of select import fuel systems found on BMW 325is, BMW 735iL, Volkswagen Fox, and Volvo 850 applications. Delphi draws on OE heritage and supplier experience to build aftermarket parts with application-specific fitment and functional accuracy.

This fuel pressure regulator is a practical replacement when the original unit can no longer hold steady pressure or maintain the correct fuel delivery profile. Search terms such as fuel injection pressure regulator for 1987-1993 BMW 325i, fuel pressure regulator for 1988-1992 Volkswagen Golf, and Delphi FP10302 for Volvo 850 help identify the correct part for these vehicles.

What It Helps Address

• Fuel pressure that is too high or too low
• Rough idle caused by unstable fuel delivery
• Hard starting related to inconsistent rail pressure
• Rich or lean running conditions from regulator wear
• Fuel system drivability issues on older OE-style injection setups

Installation Notes and Tips

Verify inlet and outlet port sizes, mounting style, and the 43 psi system pressure requirement before installation. Confirm vehicle application by year, make, and model, especially on BMW 535i, BMW M3, Volkswagen Jetta, and Hyundai Scoupe listings. Inspect fuel hoses and connections for wear before replacing the regulator, and follow the vehicle service procedure for depressurizing the fuel system.

Quality Assurance

Delphi builds this part using OE experience and knowledge developed through long-term supplier relationships with major automakers. The FP10302 reflects that background in its application-specific design and material selection.

• Fits 1993-1995 Hyundai Scoupe
• Fits 1993-1995 Volvo 850
• Fits 1987-1993 BMW 325i
• Fits 1985-1993 BMW 535i
• Fits 1990-1993 Volkswagen Cabriolet
• Fits 1992-1993 Volkswagen Fox
• Fits 1985-1992 BMW 735i
• Fits 1988-1992 BMW 735iL
• Fits 1990-1992 Volkswagen Corrado
• Fits 1988-1992 Volkswagen Golf
• Fits 1987-1992 Volkswagen Jetta
• Fits 1987-1991 BMW 325is
• Fits 1988-1991 BMW 325iX
• Fits 1988-1991 BMW M3
• Fits 1991 Volkswagen Fox, from 11/1990
• Fits 1989-1990 BMW 525i
• Fits 1988-1989 BMW 635CSi
• Fits 1988 BMW 535is
• Fits 1988 BMW M5
• Fits 1987-1988 BMW M6
• Fits 1985-1987 BMW 635CSi, with 3.0 Bar
• Fits 1985 BMW 318i