Delphi FP10450 Fuel Injection Pressure Regulator

Fuel Pressure Control for Mitsubishi and Plymouth

Delphi FP10450 is a fuel injection pressure regulator built for precise fuel system control in select Mitsubishi and Plymouth applications. It uses a metal body, a push-in inlet, and a hose outlet to match the original-style layout on supported vehicles.

Key Features

• Fuel injection pressure regulator for air and fuel delivery systems
• Metal construction for durable fuel system service
• Push-in inlet and hose outlet for OE-style routing
• Single inlet and single outlet configuration
• Fixed design with no adjustment provision
• System pressure rating: 51
• Mounts with a bolt-style attachment

Application Details

Compatible with 1990-1994 Mitsubishi Eclipse and 1990 Plymouth Laser. Delphi FP10450 is a direct-fit fuel injection pressure regulator for these applications, helping maintain the fuel pressure level required by the injection system. This part cross-references Dorman - OE Solutions 800-297 for the same application.

What It Helps Address

• Fuel pressure that is too high or too low
• Hard starting caused by unstable fuel delivery
• Rough idle related to inconsistent injector pressure
• Fuel smell or rich-running symptoms tied to regulator failure
• Driveability issues on Mitsubishi Eclipse and Plymouth Laser fuel systems

Installation Notes

Verify inlet and outlet port sizes, mounting style, and system pressure before installation. This regulator uses a push-in inlet, hose outlet, and bolt mounting arrangement, so the fuel line connections and bracket location should match the original setup. Confirm vehicle application by year and model before ordering Delphi FP10450.

Quality Assurance

Delphi draws on OE heritage and more than 100 years of original-equipment experience, with knowledge from supplying major automakers built into its aftermarket fuel system parts. That background supports consistent fit and function for FP10450 in the listed Mitsubishi Eclipse and Plymouth Laser applications.