Delphi FP10461 Fuel Injection Pressure Regulator

Fuel Pressure Control for Toyota and Lexus

Delphi FP10461 is a fuel injection pressure regulator built for precise fuel system control in select Toyota and Lexus applications. It uses a metal body, a push-in inlet, a hose outlet, and a bolt-on mounting style to match the original fuel delivery layout on covered vehicles.

Compatible with Toyota Tundra, Toyota Sequoia, Toyota Land Cruiser, and Lexus LX570 applications, this regulator supports consistent system pressure at 39 psi. Delphi FP10461 combines OE-focused engineering with fitment-specific design for direct replacement service.

Key Features

• Fuel injection pressure regulator for air and fuel delivery systems
• Metal construction for durability in fuel system service
• Push-in inlet and hose outlet configuration
• Bolt-mounted design for application-specific installation
• System pressure rated at 39 psi
• No gauge port and non-adjustable design
• Fits Toyota and Lexus fuel injection applications

Detailed Product Overview

Delphi FP10461 is engineered for vehicles that require stable fuel pressure control to support proper injector operation and fuel delivery balance. The inlet measures 11.0 mm (0.43 in) with a push-in connection, while the outlet measures 8.0 mm (0.31 in) with a hose connection. This configuration helps maintain the original fuel line routing used on the listed Toyota and Lexus platforms. Delphi’s OE heritage and supplier experience are reflected in the aftermarket part design, making FP10461 a practical replacement for service work on fuel injection systems.

This part cross-references Standard Ignition PR461 for the same application.

Common Issues This Part Can Address

• Fuel pressure that is outside the specified 39 psi range
• Rough idle caused by inconsistent fuel delivery
• Hard starting related to pressure regulation problems
• Fuel trim issues tied to unstable injector supply pressure
• Fuel system performance concerns on Toyota Tundra, Sequoia, Land Cruiser, and Lexus LX570 models

Installation Notes and Tips

• Verify inlet and outlet sizes before installation: 11.0 mm inlet and 8.0 mm outlet.
• Confirm the vehicle uses a bolt-mounted regulator with a push-in inlet and hose outlet.
• Inspect fuel lines, seals, and surrounding components for wear before replacing the regulator.
• Use the vehicle service information to confirm fuel system pressure specifications during diagnosis.
• Fits 2007-2011 Toyota Tundra, N/A
• Fits 2012 Toyota Tundra, N/A, To 09/2011
• Fits 2008-2011 Toyota Sequoia, N/A
• Fits 2008-2011 Toyota Land Cruiser, N/A
• Fits 2013-2021 Toyota Land Cruiser, N/A
• Fits 2008-2011 Lexus LX570, N/A
• Fits 2013-2021 Lexus LX570, N/A

Quality Assurance

Delphi builds this fuel injection pressure regulator using OE-focused knowledge developed through long-term supplier experience with major automakers. That background supports application-specific fitment and fuel system consistency for covered Toyota and Lexus vehicles.