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Delphi FP10421 Fuel Injection Pressure Regulator
| Brand | Delphi FP10421 |
|---|---|
| Adjustable | No |
| Gauge Port | No |
| Inlet Port Diameter | 0.62 |
| Inlet Port Diameter | 15.8 |
| Inlet Quantity | 1 |
| Inlet Type | Push In |
| Material | Metal |
| Material | Metal |
| Mounting Type | Bolt |
| Outlet Port Diameter | 0.31 |
| Outlet Port Diameter | 8.0 |
| Outlet Quantity | 1 |
| Outlet Type | Threaded |
| System Pressure | 44 |
| Fits | Hyundai · 5 vehicles |
OE heritage. Built with 100 years of OE experience and knowledge.
Metal construction. Durable fuel injection pressure regulator with a metal body.
Bolt mount. Features a push-in inlet and threaded outlet for secure installation.
Cross-references Gates 23070, Standard Ignition PR309 and 5G1184 for the same application. See all 7.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Fuel Pressure Control for Hyundai Accent
The Delphi FP10421 fuel injection pressure regulator helps maintain consistent fuel system pressure for 1995-1999 Hyundai Accent applications. Built with OE-focused engineering and metal construction, it supports stable injector performance and reliable fuel delivery.
Key Features
- Fuel injection pressure regulator for air and fuel delivery systems
- Fits 1995-1999 Hyundai Accent
- Metal body construction for durability
- Fixed design with no adjustability
- Push-in inlet and threaded outlet connection style
- Single inlet and single outlet configuration
- 44 system pressure specification
- Bolt-mounted design
- No gauge port
Detailed Product Overview
Delphi FP10421 is a fuel injection pressure regulator engineered for Hyundai Accent fuel systems that require controlled pressure at the rail. The unit uses a push-in inlet, threaded outlet, and bolt mounting to match the specified application, while the metal housing supports dependable service in the fuel delivery circuit. Delphi draws on OE experience from supplying major automakers, and that background is reflected in the fit and function of this replacement part. This part cross-references Gates 23070 for the same application.
Common Issues This Part Can Address
- Fuel pressure that is too high or too low at the injector rail
- Rough idle caused by unstable fuel delivery
- Hard starting related to pressure regulation problems
- Fuel mixture concerns tied to inconsistent regulator performance
- Driveability issues on 1995-1999 Hyundai Accent fuel injection systems
Installation Notes and Tips
Verify the inlet and outlet port sizes, mounting style, and system pressure before installation. Confirm direct fitment for your Hyundai Accent by matching the vehicle year and fuel system configuration to the FP10421 specification. Inspect fuel lines, seals, and mounting points during replacement to help ensure a proper seal and stable operation.
Quality Assurance
Delphi applies OE heritage and manufacturing knowledge to aftermarket fuel system components, with engineering informed by decades of original equipment supply experience. The FP10421 is built to meet the specified application requirements for consistent fuel pressure control.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1999 | Hyundai | Accent | N/A | — |
| 1998 | Hyundai | Accent | N/A | — |
| 1997 | Hyundai | Accent | N/A | — |
| 1996 | Hyundai | Accent | N/A | — |
| 1995 | Hyundai | Accent | N/A | — |
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