Delphi FP10547 Fuel Injection Pressure Regulator

Delphi FP10547 Fuel Pressure Regulator

The Delphi FP10547 fuel injection pressure regulator is built for precise fuel system control in select Mitsubishi, Lexus, and Toyota applications. With OE-based engineering and a metal body, it supports stable fuel pressure for consistent injector performance.

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 design
• Clamp mounting type for in-tank or fuel system installation
• Fixed 51 system pressure
• 1 inlet port and 1 outlet port
• No gauge port and non-adjustable design
• Delphi OE heritage built into aftermarket replacement parts

Application Details

Compatible with 2004-2011 Mitsubishi Galant, 2004-2008 Mitsubishi Endeavor, 2006-2008 Lexus RX400h, 2002-2003 Lexus ES300, 2002-2003 Toyota Avalon, and 2003 Toyota Avalon applications listed for this part. The Delphi FP10547 is also a direct reference for fuel injection pressure regulator replacement searches on these vehicles.

This part cross-references Four Seasons 24139 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 system performance issues in tank-mounted regulator setups
• Replacement needs for worn or leaking pressure regulators

Installation Notes

Verify inlet and outlet port sizes, push-in inlet fitment, and clamp mounting before installation. This regulator is noted for fuel tank placement on certain Lexus and Toyota applications, so confirm the vehicle’s fuel system layout against the original part. Match the 51 system pressure specification and confirm the OE interchange before service.

Quality Assurance

Delphi draws on more than a century of OE experience and supplier knowledge from top automakers, with that engineering background reflected in this aftermarket fuel injection pressure regulator. The FP10547 is built to OE-style expectations for fit and fuel system control.