HomeAir and Fuel Delivery > Fuel Pumps and Related ComponentsDelphi MF0003 Mechanical Fuel Pump
Part #: MF0003

Delphi MF0003 Mechanical Fuel Pump

⚙️ 16 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Toyota, Pickup, 4Runner, Celica, and Corona
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Overview of Delphi Mechanical Fuel Pump MF0003

The Delphi Mechanical Fuel Pump MF0003 is designed for reliable fuel delivery in select Toyota vehicles. Engineered to meet standard replacement specifications, this pump supports consistent fuel flow and system pressure for optimal engine performance.

  • Compatible with Toyota 4Runner, Celica, Corona, and Pickup models
  • Standard replacement mechanical fuel pump with part number MF0003
  • Inlet and outlet outside diameter of 0.250 inches with hose bead connections
  • Supports gasoline fuel type with a system pressure of 4 psi
  • Includes gasket and instruction sheet for installation
  • Average flow rating of 20 gallons per hour
  • Two outlet ports for efficient fuel distribution

Technical Specifications and Features

This mechanical fuel pump features hose bead inlet and outlet types, each with an outside diameter of 0.250 inches, ensuring secure hose connections. Designed specifically for gasoline fuel systems, it maintains a system pressure of 4 psi, suitable for the fuel delivery requirements of Toyota 4Runner, Celica, Corona, and Pickup models. The pump includes two outlet ports, allowing for effective fuel flow management. The package contains the mechanical fuel pump, a gasket for proper sealing, and an instruction sheet to assist with installation.

Applications and Problem Resolution

The Delphi MF0003 mechanical fuel pump is used to replace worn or failing fuel pumps in compatible Toyota vehicles. It addresses several common fuel delivery issues, including:

  • Inconsistent fuel pressure causing engine performance problems
  • Fuel leaks due to damaged or missing gaskets
  • Reduced fuel flow affecting acceleration and power
  • Fuel pump failure resulting in engine stalling or no start conditions
  • Wear and tear from extended use in older Toyota 4Runner, Celica, Corona, and Pickup models

Installation Notes and Tips

When installing the Delphi MF0003 mechanical fuel pump, ensure the gasket is properly seated to prevent fuel leaks. Verify that the hose bead inlet and outlet connections are secure and free of cracks or damage. Follow the included instruction sheet carefully to maintain correct system pressure and flow. It is recommended to inspect fuel lines and replace any worn hoses during installation to ensure optimal performance.

Quality Assurance and Warranty

Delphi mechanical fuel pumps are manufactured to meet standard replacement quality requirements. The MF0003 part number undergoes rigorous testing to ensure consistent flow rating and system pressure compatibility. This product includes a gasket and installation instructions to support proper fitment and function. Warranty details should be confirmed with the point of purchase or Delphi directly.

BrandDelphi
Part NumberMF0003
Average Flow Rating20
Fuel TypeGas
Gasket Or Seal IncludedYes
Inlet Outside Diameter0.250
Inlet TypeHose Bead
Item GradeStandard Replacement
Outlet Outside Diameter0.250
Outlet Quantity2
Outlet TypeHose Bead
Package ContentsMechanical Fuel Pump, Gasket, Instruction Sheet
System Pressure4 psi

This part fits 16 vehicles. Search below:

YearMakeModelPositionNotes
1990ToyotaPickupN/AExternal Mounted
1989ToyotaPickupN/AExternal Mounted
1988ToyotaPickupN/AExternal Mounted
1987ToyotaPickupN/AExternal Mounted
1986ToyotaPickupN/AExternal Mounted
1985ToyotaPickupN/AExternal Mounted
1984Toyota4RunnerN/AExternal Mounted
1984ToyotaPickupN/AExternal Mounted
1983ToyotaCelicaN/AExternal Mounted
1983ToyotaPickupN/AExternal Mounted
1982ToyotaCelicaN/AExternal Mounted
1982ToyotaCoronaN/AExternal Mounted
1982ToyotaPickupN/AExternal Mounted
1981ToyotaCelicaN/AExternal Mounted
1981ToyotaCoronaN/AExternal Mounted
1981ToyotaPickupN/AExternal Mounted

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1330151-6768151-801315937923100-3502023100-3503023100-3503123100-3933523100-3933668875AMF0003M22001M60416SP1003MP

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.