Delphi FP10683 Fuel Injection Pressure Regulator

Fuel Pressure Control for Toyota Applications

The Delphi FP10683 fuel injection pressure regulator is built for precise fuel system control in select Toyota applications. It uses a metal body, a push-in inlet, a hose outlet, and a bolt-on mounting style to match the original fuel rail setup on covered vehicles.

With OE-focused engineering informed by Delphi’s long history supplying automakers, this regulator is made for direct replacement service on Toyota 4Runner, FJ Cruiser, and Tundra fuel injection systems.

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 configuration
• Bolt-mounted design for OE-style installation
• 41 system pressure specification
• No gauge port and non-adjustable design
• Fits Toyota 4Runner, FJ Cruiser, and Tundra applications listed below

Detailed Description

Delphi FP10683 is a fuel injection pressure regulator engineered for select Toyota fuel rail applications. It is designed with one push-in inlet, one hose outlet, and a metal housing to support stable fuel pressure control in the injection system. The 41 system pressure specification and non-adjustable layout match the needs of the covered OE-style applications.

This part cross-references Standard Ignition PR506 for the same application. Fits 2018-2020 Toyota 4Runner, Location-Fuel Rail; fits 2010-2017 Toyota 4Runner; fits 2021-2022 Toyota 4Runner; fits 2010-2014 Toyota FJ Cruiser; fits 2012 Toyota Tundra, From 01/2012; fits 2013-2014 Toyota Tundra.

What It Helps Address

• Fuel pressure that is outside the specified range
• Rough idle caused by inconsistent fuel delivery
• Hard starting related to fuel rail pressure control
• Fuel trim issues tied to regulator performance
• Driveability concerns in Toyota 4Runner, FJ Cruiser, and Tundra fuel systems

Installation Notes and Tips

Verify the inlet and outlet style, mounting type, and system pressure before installation. This regulator uses a push-in inlet, hose outlet, and bolt mounting arrangement, so the fuel rail connection must match the original configuration. Confirm the vehicle year and any location notes, including fuel rail placement on 2018-2020 Toyota 4Runner and the 01/2012 note for 2012 Toyota Tundra.

Quality Assurance

Delphi draws on OE experience and supplier knowledge developed through work with major automakers, and that engineering approach is reflected in this aftermarket replacement part.