Delphi FP10544 Fuel Injection Pressure Regulator

Brand Delphi FP10544
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 0.24
Outlet Port Diameter 6.0
Outlet Quantity 1
Outlet Type Hose
System Pressure 39
Fits Ford · 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. Helps maintain consistent fuel pressure in the injection system.

Cross-references Gates 21894, B37613280 and F0BZ9C968A for the same application. See all 3.

$158.04Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing β€” free returns if it doesn't
Step 2 — Quantity
Order total $158.04
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Fuel Pressure Control for Ford Festiva

The Delphi FP10544 fuel injection pressure regulator is built for precise fuel system control on select Ford Festiva models from 1990-1993. It uses OE-based engineering and metal construction to support stable fuel pressure in the injection system.

Key Features

  • Fuel injection pressure regulator for air and fuel delivery systems
  • Fits 1990-1993 Ford Festiva
  • Metal body construction
  • Push-in inlet and hose outlet design
  • 1 inlet port and 1 outlet port
  • Bolt-on mounting type
  • Fixed 39 system pressure
  • No gauge port and non-adjustable design

Detailed Description

Delphi FP10544 is a fuel injection pressure regulator engineered for select Ford Festiva applications. It is designed with a metal housing, a push-in inlet, and a hose-style outlet to match the original fuel system layout. With a fixed 39 system pressure and no adjustable setting, this regulator supports consistent fuel delivery for the 1990-1993 Ford Festiva. Delphi draws on OE heritage and decades of supplier experience to produce aftermarket parts that reflect original equipment knowledge. This part cross-references Gates 21894 for the same application.

Common Issues It Can Address

  • Fuel pressure that is too high or too low
  • Hard starting caused by unstable fuel delivery
  • Rough idle related to pressure regulation problems
  • Fuel mixture concerns tied to inconsistent injector pressure
  • Driveability issues on Ford Festiva fuel injection systems

Installation Notes and Tips

Verify the inlet and outlet port sizes, mounting style, and system pressure before installation. Confirm the vehicle application as Fits 1990-1993 Ford Festiva, N/A. Inspect fuel lines, seals, and surrounding components for wear before replacing the regulator. Use the part number FP10544 to confirm the correct replacement during ordering and service.

Quality Assurance

Delphi builds this regulator with OE-focused engineering informed by more than a century of original equipment experience and supplier knowledge from top automakers. That background is reflected in the design and material selection of FP10544.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1993FordFestivaN/A—
1992FordFestivaN/A—
1991FordFestivaN/A—
1990FordFestivaN/A—
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Gates — 21894B37613280F0BZ9C968A