/live/media/DE/DE_FP10425_Fro.jpg)
Will it fit your vehicle?
Confirm before you buy. Free return shipping if it doesn't fit.
Delphi FP10425 Fuel Injection Pressure Regulator
| Brand | Delphi FP10425 |
|---|---|
| Adjustable | No |
| Gauge Port | No |
| Inlet Port Diameter | 0.43 |
| Inlet Port Diameter | 11.0 |
| Inlet Quantity | 1 |
| Inlet Type | Push In |
| Material | Metal |
| Material | Metal |
| Mounting Type | Bolt |
| Outlet Port Diameter | 0.35 |
| Outlet Port Diameter | 9.0 |
| Outlet Quantity | 1 |
| Outlet Type | Hose |
| System Pressure | 39 |
| Fits | Mazda · 4 vehicles |
OE heritage. Built with 100 years of OE experience and knowledge.
Metal construction. Durable metal body for dependable fuel system performance.
Bolt mount. Push-in inlet and hose outlet for straightforward installation.
Cross-references Beck/Arnley 158-0267, Dorman - OE Solutions 800-191 and Gates 21887 for the same application. See all 7.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Fuel Pressure Control for Mazda Miata
Delphi FP10425 is a fuel injection pressure regulator built for precise fuel system control in 1990-1993 Mazda Miata applications. It uses OE-based engineering and metal construction to help maintain consistent system pressure for reliable drivability.
Key Features
- Direct-fit fuel injection pressure regulator for select Mazda Miata models
- Metal body construction for fuel system durability
- Push-in inlet and hose outlet configuration
- Single inlet and single outlet port layout
- Bolt-on mounting type for secure installation
- Fixed-pressure design with 39 system pressure
- No gauge port and non-adjustable design
Product Details
Delphi FP10425 is engineered for fuel delivery systems that require stable pressure regulation at 39 psi. The regulator features a 0.43 in. (11.0 mm) push-in inlet, a 0.35 in. (9.0 mm) hose outlet, and a metal housing that supports dependable operation in the fuel injection system. Delphi draws on OE heritage and supplier experience with major automakers, and that background is reflected in the fit and function of this aftermarket replacement. This part cross-references Beck/Arnley 158-0267 for the same application.
What It Helps Address
- Fuel pressure that is too high or too low
- Hard starting caused by unstable fuel delivery
- Rough idle from inconsistent injector pressure
- Fuel mixture issues tied to regulator wear
- Driveability problems in Mazda Miata fuel injection systems
Installation Notes and Tips
Fits 1990-1993 Mazda Miata. Confirm inlet and outlet port sizes, push-in inlet style, hose outlet routing, and bolt-mount location before installation. Replace any aged fuel hoses or seals during service, and verify fuel pressure after installation to confirm the system is operating at the specified 39 psi.
Quality Assurance
Delphi builds this regulator using OE experience gained from supplying major automakers, with design knowledge carried into its aftermarket fuel system parts. FP10425 is intended to meet the needs of select Mazda Miata fuel injection applications with a focus on consistent pressure control and fitment accuracy.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1993 | Mazda | Miata | N/A | — |
| 1992 | Mazda | Miata | N/A | — |
| 1991 | Mazda | Miata | N/A | — |
| 1990 | Mazda | Miata | N/A | — |
| No rows match your filter. | ||||