Delphi FP10508 Fuel Injection Pressure Regulator

Delphi FP10508 Fuel Pressure Regulator

The Delphi FP10508 fuel injection pressure regulator is built for precise fuel system control in select Acura and Honda applications. It uses a metal body, threaded inlet, hose outlet, and clamp mounting design to support stable system pressure in the fuel injection circuit.

Key Features

• Metal construction for fuel system durability
• Threaded inlet with 12.0 mm inlet port diameter
• Hose outlet with 8.0 mm outlet port diameter
• Non-adjustable design for direct replacement use
• Single inlet and single outlet configuration
• System pressure rating of 51
• No gauge port

Product Details

Delphi FP10508 is a fuel injection pressure regulator engineered for consistent fuel delivery control in the fuel injection system. Delphi draws on OE heritage and supplier experience with major automakers, and that background is reflected in the fit, materials, and pressure specification of this replacement part. This part cross-references Standard Ignition PR225 for the same application. It is a direct-fit option for 1997-2001 Acura CL, 1999-2001 Acura TL, 1998-2001 Honda Accord, and 1999-2001 Honda Odyssey applications, making it a practical choice when replacing a worn or failing regulator on these vehicles.

Common Issues This Part Can 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 odor or rich-running symptoms from regulator wear
• Driveability concerns tied to fuel system pressure control

Installation Notes and Tips

Verify inlet and outlet port sizes, threaded inlet style, hose outlet routing, and clamp mounting location before installation. Confirm the vehicle’s fuel system specification matches the 51 pressure rating and inspect connected hoses and seals for wear during replacement. For Acura CL, Acura TL, Honda Accord, and Honda Odyssey applications, compare the original regulator layout to ensure proper fitment and connection style.

Quality Assurance

Delphi builds aftermarket parts using OE experience and knowledge developed through long-term supplier relationships with leading automakers. The FP10508 reflects that OE-based approach in its materials, pressure specification, and application coverage.