Delphi FP10448 Fuel Injection Pressure Regulator
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Delphi

Delphi FP10448 Fuel Injection Pressure Regulator

Brand Delphi FP10448
Adjustable No
Gauge Port No
Inlet Port Diameter 0.63
Inlet Port Diameter 16.0
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 Dodge, Mitsubishi, and Plymouth · 2 vehicles

OE heritage. Built with 100 years of OE experience.

Metal construction. Durable fuel injection pressure regulator with a bolt mount.

Push-in inlet. Hose outlet and single inlet, for straightforward fuel routing.

Cross-references Dorman - OE Solutions 800-231, NTK 23008 and Standard Ignition PR119 for the same application. See all 4.

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Fuel Pressure Control for OE-Style Performance

The Delphi FP10448 fuel injection pressure regulator is built for precise fuel system control in select 1989 Dodge Colt and 1989 Mitsubishi Mirage applications. With OE heritage behind the design, this metal regulator helps maintain the specified 39 psi system pressure for consistent fuel delivery.

  • Fuel injection pressure regulator for air and fuel delivery systems
  • Metal construction for durable fuel system service
  • Push-in inlet with hose outlet for the specified application
  • Bolt-mounted design for secure installation
  • Fixed setting; not adjustable
  • Single inlet and single outlet configuration
  • No gauge port
  • System pressure: 39 psi

Application Details

Compatible With 1989 Dodge Colt and 1989 Mitsubishi Mirage fuel injection systems, this Delphi FP10448 regulator is intended for vehicles that require the listed inlet and outlet dimensions and mounting style. The FP10448 is a direct-fit fuel injection pressure regulator for 1989 Dodge Colt and 1989 Mitsubishi Mirage models where the original regulator matches the OE-style pressure specification.

This part cross-references Dorman OE Solutions 800-231 and Standard Ignition PR119 for the same application.

What It Helps Address

  • Fuel pressure that is too high or too low for the injection system
  • Hard starting caused by unstable fuel delivery
  • Rough idle related to inconsistent injector pressure
  • Fuel mixture issues tied to regulator wear
  • Driveability concerns from a failing pressure regulator

Installation Notes

Verify inlet and outlet port sizes, push-in inlet style, hose outlet style, and bolt-mount location before installation. Confirm the fuel system is set up for 39 psi and that the replacement regulator matches the original application on the 1989 Dodge Colt or 1989 Mitsubishi Mirage. Clean surrounding fuel system components and inspect hoses and seals during service.

Quality Assurance

Delphi draws on more than 100 years of OE experience and supplier knowledge from work with major automakers. That OE background is reflected in the FP10448 fuel pressure regulator’s materials, fitment focus, and application-specific design.

Related reading

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1989DodgeColtN/A—
1989MitsubishiMirageN/A—
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - OE Solutions — 800-231NTK — 23008Standard Ignition — PR119MD124648