Delphi FP10451 Fuel Injection Pressure Regulator

Fuel Pressure Control for Mitsubishi Galant

The Delphi FP10451 fuel injection pressure regulator is a metal OE-style replacement built for stable fuel delivery in the fuel injection system. It fits 1989-1992 Mitsubishi Galant applications and reflects Delphi’s OE heritage in aftermarket form.

Key Features

• Fuel injection pressure regulator for air and fuel delivery systems
• Metal construction for durability in engine-bay conditions
• Push-in inlet and hose outlet for the specified fuel line layout
• Fixed-pressure design with no adjustment provision
• Single inlet and single outlet configuration
• System pressure rating: 51
• Bolt-mounted design for secure installation
• No gauge port

Detailed Product Overview

Delphi FP10451 is engineered as a direct-fit fuel injection pressure regulator for 1989-1992 Mitsubishi Galant models. It uses a push-in inlet, hose outlet, and bolt mounting style to match the original fuel system configuration, while the metal body supports consistent operation in demanding underhood environments. This part cross-references Gates 23018 and MD126263 for the same application.

Built from Delphi’s OE experience, FP10451 is intended to maintain proper fuel pressure at the injector rail so the engine receives the fuel volume it needs under varying load conditions. If you are searching for a Mitsubishi Galant fuel injection pressure regulator, Delphi FP10451 provides the fitment and specifications needed for a direct replacement.

What This Part Helps Address

• Fuel pressure that is too high or too low
• Hard starting caused by unstable fuel delivery
• Rich or lean running conditions from pressure irregularities
• Fuel odor or drivability issues related to regulator failure
• Inconsistent injector performance on Mitsubishi Galant fuel systems

Installation Notes and Tips

Verify inlet and outlet port sizes, mounting style, and system pressure before installation. Confirm the fuel line routing on the vehicle and inspect related hoses and seals for wear before replacing the regulator. For 1989-1992 Mitsubishi Galant fuel system service, match the regulator to the original push-in inlet and hose outlet configuration to avoid fitment issues.

Quality Assurance

Delphi draws on more than 100 years of OE experience and supplier knowledge used by major automakers. That OE background is built into FP10451 to support accurate fuel system service on compatible Mitsubishi Galant applications.