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Delphi FP10299 Fuel Injection Pressure Regulator
| Brand | Delphi FP10299 |
|---|---|
| Adjustable | No |
| Gauge Port | No |
| Inlet Port Diameter | 0.67 |
| Inlet Port Diameter | 17.0 |
| Inlet Quantity | 1 |
| Inlet Type | Push In |
| Material | Metal |
| Material | Metal |
| Mounting Type | Bolt |
| Outlet Port Diameter | 0.79 |
| Outlet Port Diameter | 20.0 |
| Outlet Quantity | 1 |
| Outlet Type | Threaded |
| System Pressure | 51 |
| Fits | Buick, Chevrolet, GMC, Isuzu, and Oldsmobile · 24 vehicles |
OE heritage. Built with 100 years of OE experience and knowledge.
Metal construction. Durable metal body for dependable fuel system performance.
Fuel injection regulator. Controls system pressure for precise fuel delivery.
Cross-references Dorman - OE Solutions 800-345, Gates 23090 and Standard Ignition PR233 for the same application. See all 11.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Fuel Pressure Control for OE-Style Performance
The Delphi FP10299 fuel injection pressure regulator is built for precise fuel system control in select GM and Isuzu applications. With OE heritage behind the design, it supports stable fuel pressure delivery for consistent engine operation in vehicles such as the Chevrolet Trailblazer, GMC Envoy, and Buick Rainier.
Key Features
- Metal construction for durable fuel system service
- Fixed-pressure design with a 51 system pressure rating
- Push-in inlet and threaded outlet for application-specific routing
- Bolt-mounted regulator body for secure installation
- Single inlet and single outlet configuration
- Delphi FP10299 fuel injection pressure regulator for OE-style replacement
Detailed Product Overview
Delphi FP10299 is a fuel injection pressure regulator engineered for vehicles that require controlled fuel delivery at the rail or fuel system assembly. The metal housing supports long-term service in demanding underhood conditions, while the 17.0 mm inlet and 20.0 mm outlet dimensions align with the specified fuel line connections. This regulator is not adjustable and is set for a 51 system pressure application, making it a direct-fit service part for the listed platforms. Delphi FP10299 is a practical choice when replacing a worn regulator on a Chevrolet Trailblazer, GMC Envoy, or related fitments.
This part cross-references Dorman OE Solutions 800-345 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 related to inconsistent rail pressure
- Fuel trim issues tied to regulator wear
- Fuel odor or leakage at the regulator connection points
Installation Notes and Tips
Verify the inlet and outlet style, port diameters, and mounting style before installation. This regulator uses a push-in inlet, threaded outlet, and bolt mounting, so the fuel line and mounting points must match the original configuration. Confirm vehicle application by year, make, and model before service on the fuel injection system.
Quality Assurance
Delphi draws on more than a century of OE experience and supplier knowledge developed with major automakers. That OE background is reflected in the design and material selection of the FP10299 fuel pressure regulator.
Compatible Vehicles
- Fits 2004-2005 Buick Rainier, N/A
- Fits 2002-2005 Chevrolet Trailblazer, N/A
- Fits 2002-2005 Chevrolet Trailblazer EXT, N/A
- Fits 2002-2005 GMC Envoy, N/A
- Fits 2002-2004 GMC Envoy XL, N/A
- Fits 2004 GMC Envoy XUV, N/A
- Fits 2003-2004 Isuzu Ascender, N/A
- Fits 2002-2004 Oldsmobile Bravada, N/A
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2005 | Buick | Rainier | — | N/A | — |
| 2005 | Chevrolet | Trailblazer | — | N/A | — |
| 2005 | Chevrolet | Trailblazer EXT | — | N/A | — |
| 2005 | GMC | Envoy | SLT | N/A | — |
| 2005 | GMC | Envoy | SLE | N/A | — |
| 2004 | Buick | Rainier | — | N/A | — |
| 2004 | Chevrolet | Trailblazer | — | N/A | — |
| 2004 | Chevrolet | Trailblazer EXT | — | N/A | — |
| 2004 | GMC | Envoy | — | N/A | — |
| 2004 | GMC | Envoy XL | — | N/A | — |
| 2004 | GMC | Envoy XUV | — | N/A | — |
| 2004 | Isuzu | Ascender | — | N/A | — |
| 2004 | Oldsmobile | Bravada | — | N/A | — |
| 2003 | Chevrolet | Trailblazer | — | N/A | — |
| 2003 | Chevrolet | Trailblazer EXT | — | N/A | — |
| 2003 | GMC | Envoy | — | N/A | — |
| 2003 | GMC | Envoy XL | — | N/A | — |
| 2003 | Isuzu | Ascender | — | N/A | — |
| 2003 | Oldsmobile | Bravada | — | N/A | — |
| 2002 | Chevrolet | Trailblazer | — | N/A | — |
| 2002 | Chevrolet | Trailblazer EXT | — | N/A | — |
| 2002 | GMC | Envoy | — | N/A | — |
| 2002 | GMC | Envoy XL | — | N/A | — |
| 2002 | Oldsmobile | Bravada | — | N/A | — |
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