Delphi FP10493 Fuel Injection Pressure Regulator

Fuel Pressure Control for OE Applications

Delphi FP10493 is a metal fuel injection pressure regulator built for precise fuel system control in OE-style applications. It uses a push-in inlet, hose outlet, and bolt-on mounting design to support stable fuel pressure at 24 system pressure.

With Delphi’s OE heritage behind it, this regulator is built from the company’s long history supplying top automakers and translating that experience into aftermarket replacement parts. It is a direct-fit style solution for fuel injection system service where consistent pressure regulation is required.

Key Features

• Delphi FP10493 fuel injection pressure regulator
• Metal construction for durable fuel system service
• Push-in inlet with 10.0 mm inlet port diameter
• Hose outlet with 8.0 mm outlet port diameter
• Bolt mounting type for secure installation
• Non-adjustable design
• No gauge port
• System pressure rating: 24

Detailed Description

The Delphi FP10493 is engineered for fuel injection systems that require regulated pressure delivery and stable operation. Its single inlet and single outlet layout, along with the push-in inlet and hose outlet configuration, makes it a practical replacement for service work on vehicles such as Honda Civic and Toyota Corolla applications where OE-style fuel pressure control is needed. Delphi FP10493 also cross-references Dorman OE Solutions 800-126 for the same application.

As a metal fuel injection pressure regulator, this part is suited to replacement scenarios where the original regulator has worn, leaked, or lost pressure control. The non-adjustable design keeps the unit focused on factory-style regulation rather than tuning changes, which is important for maintaining proper fuel delivery in everyday driving conditions.

What It Helps Solve

• Fuel pressure that is too high or too low
• Hard starting caused by unstable fuel delivery
• Rich or lean running conditions tied to regulator wear
• Fuel odor or seepage from a failing regulator body
• Driveability issues related to inconsistent injector pressure

Installation Notes and Tips

Confirm inlet and outlet port sizes before installation: 10.0 mm inlet and 8.0 mm outlet. Verify the bolt-mount location, push-in inlet connection, and hose outlet routing match the original part on the vehicle. For fitment-based searches, this part is commonly referenced for Honda Civic and Toyota Corolla fuel system service, and the Delphi FP10493 should be matched to the original regulator style before replacement.

Quality Assurance

Delphi draws on more than a century of OE experience and supplier knowledge from top automakers, and that background is reflected in the design and material selection of this aftermarket fuel pressure regulator. The FP10493 is built to support OE-style fuel system service with the specifications listed above.