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Delphi FP10501 Fuel Injection Pressure Regulator
| Brand | Delphi FP10501 |
|---|---|
| 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 | 0.31 |
| Outlet Port Diameter | 8.0 |
| Outlet Quantity | 1 |
| Outlet Type | Hose |
| System Pressure | 44 |
| Fits | Nissan · 4 vehicles |
OE heritage. Built with 100 years of OE experience and knowledge.
Metal construction. Durable metal body for dependable fuel system performance.
Fuel pressure regulator. Maintains consistent fuel pressure in the injection system.
Cross-references Dorman - OE Solutions 800-229, Gates 21886 and Standard Ignition PR117 for the same application. See all 7.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Fuel Pressure Control for Nissan Applications
The Delphi FP10501 fuel injection pressure regulator is built for 1989-1990 Nissan Pulsar NX and 1989-1990 Nissan Sentra applications. It uses a metal body with a bolt-on mount, push-in inlet, and hose outlet to support stable fuel pressure control in the injection system.
- Direct-fit fuel injection pressure regulator for select Nissan fuel systems
- Metal construction for durability in engine-bay conditions
- Push-in inlet with 11.0 mm inlet port diameter
- Hose outlet with 8.0 mm outlet port diameter
- 44 system pressure specification
- No gauge port and non-adjustable design
OE-Style Design and Fitment
Delphi FP10501 is engineered from OE heritage and aftermarket knowledge developed through long-term supplier experience with major automakers. For Nissan Pulsar NX and Nissan Sentra fuel system service, this regulator helps maintain the pressure level required for proper injector operation and consistent fuel delivery. This part cross-references Dorman OE Solutions 800-229 for the same application.
What It Helps Correct
- Fuel pressure that is too high or too low
- Hard starting caused by unstable fuel delivery
- Rough idle related to pressure regulation issues
- Fuel smell or rich-running symptoms from regulator failure
- Driveability problems tied to inconsistent injector pressure
Installation Notes
Verify inlet and outlet port sizes, mounting style, and system pressure before installation. The FP10501 uses a bolt mount, one push-in inlet, and one hose outlet, so the fuel line routing and connection style should match the original setup on the vehicle. Confirm fitment for 1989-1990 Nissan Pulsar NX and 1989-1990 Nissan Sentra before replacing the regulator.
Quality Assurance
Delphi draws on 100 years of OE experience and supplier knowledge used by top automakers, with that OE background carried into this aftermarket fuel injection pressure regulator.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1990 | Nissan | Pulsar NX | N/A | — |
| 1990 | Nissan | Sentra | N/A | — |
| 1989 | Nissan | Pulsar NX | N/A | — |
| 1989 | Nissan | Sentra | N/A | — |
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