Delphi FP10549 Fuel Injection Pressure Regulator

Delphi FP10549 Fuel Pressure Regulator

The Delphi FP10549 fuel injection pressure regulator is built for precise fuel system control in select Toyota and Lexus applications. It uses a metal body, push-in inlet and outlet connections, and a bolt-on mounting style to match OE-style fuel delivery requirements.

Key Features

• Metal construction for fuel system durability
• Fixed system pressure rating of 44
• 1 inlet and 1 outlet with push-in connection design
• Bolt-mounted regulator layout
• No gauge port and non-adjustable design
• OE heritage informed by Delphi’s long history supplying automakers

Application Details

Compatible with fuel injection systems that require a 44 system pressure regulator and OE-style push-in ports. Fits 1999-2003 Toyota Solara, N/A; 2000-2001 Lexus ES300, N/A, in fuel tank with NipponDenso produced OE; 1998-2001 Toyota Avalon, N/A; 1997-2001 Toyota Camry, N/A; 1998-2000 Toyota Sienna, N/A; 1997-1999 Lexus ES300, N/A, with Type A; and 1997-1998 Toyota Camry, N/A, with Type A. This part cross-references Standard Ignition PR226 for the same application.

What It Helps Address

• Fuel pressure that is too high or too low for the injection system
• Hard starting caused by unstable fuel delivery
• Rough idle related to inconsistent rail pressure
• Driveability issues tied to incorrect injector fuel supply
• Fuel system performance problems in Toyota Camry, Avalon, Solara, Sienna, and Lexus ES300 applications

Installation Notes

Verify the inlet and outlet port sizes, push-in connection style, and bolt-mount layout before installation. Confirm the vehicle’s OE configuration, including Type A or in-tank application details where listed, to ensure the regulator matches the original fuel system setup. For Toyota Camry and Lexus ES300 applications, confirm the exact model year and OE fuel system type before replacement.

Quality Assurance

Delphi builds aftermarket parts using OE experience gained from supplying major automakers, and that OE heritage is reflected in the FP10549’s materials and design approach. The part number FP10549 is intended to meet the fitment and pressure requirements listed for the specified Toyota and Lexus vehicles.