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Delphi FP10446 Fuel Injection Pressure Regulator
| Brand | Delphi FP10446 |
|---|---|
| Material | Metal |
| Outlet Port Diameter | 0.31 |
| Outlet Port Diameter | 8.0 |
| Adjustable | No |
| Inlet Port Diameter | 0.43 |
| Inlet Port Diameter | 11.0 |
| Inlet Type | Push in |
| Outlet Type | Hose |
| Inlet Quantity | 1 |
| Outlet Quantity | 1 |
| Mounting Type | Bolt |
| Gauge Port | No |
| Material | Metal |
| System Pressure | 51 |
| Fits | Mitsubishi · 3 vehicles |
OE heritage. Built from a century of OE experience and knowledge.
Metal construction. Durable metal body for dependable fuel system performance.
Fuel pressure regulator. Helps maintain consistent fuel injection system pressure.
Cross-references Gates 23002, 5G1275 and MD120817 for the same application. See all 4.
Fuel Pressure Control for Mitsubishi Applications
Delphi FP10446 is a fuel injection pressure regulator built with a metal body and OE-focused engineering for stable fuel delivery. It is a direct-fit style component for select Mitsubishi models, including the 1988 Mitsubishi Galant and 1989-1990 Mitsubishi Sigma.
Key Features
- Metal construction for fuel system durability
- Fixed-pressure design; not adjustable
- Push-in inlet with hose outlet for the specified fuel line layout
- Bolt-mounted regulator body
- System pressure rating: 51
- Single inlet and single outlet configuration
- No gauge port
Detailed Product Overview
Delphi FP10446 is a fuel injection pressure regulator engineered for consistent pressure control in the fuel delivery system. With an 11.0 mm push-in inlet and an 8.0 mm hose outlet, this regulator is built to match the specified connection style used on compatible Mitsubishi fuel injection setups. The metal housing supports long-term service in a demanding underhood environment, while the 51 system pressure specification helps maintain the fuel pressure required for proper injector operation. Delphi draws on OE heritage and supplier experience from its aftermarket engineering, which is reflected in the fit and function of FP10446.
This part cross-references Gates 23002 for the same application.
Vehicle Fitment
- Fits 1988 Mitsubishi Galant, N/A
- Fits 1989-1990 Mitsubishi Sigma, N/A
Common Replacement Reasons
- 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 or connection
- Driveability issues related to inconsistent injector pressure
Installation Notes
Verify inlet and outlet sizes before installation: 11.0 mm push-in inlet and 8.0 mm hose outlet. Confirm the bolt-mount location and fuel system pressure specification match the original application. Inspect nearby fuel lines and seals for wear before replacing the regulator, and follow proper fuel system depressurization procedures during service.
Quality Assurance
Delphi FP10446 is backed by Delphi’s OE-focused manufacturing experience and fuel system engineering knowledge developed through decades of supplying automakers and the aftermarket.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1990 | Mitsubishi | Sigma | N/A | — |
| 1989 | Mitsubishi | Sigma | N/A | — |
| 1988 | Mitsubishi | Galant | N/A | — |
| No rows match your filter. | ||||