Delphi MF0073 Mechanical Fuel Pump

Delphi MF0073 Mechanical Fuel Pump

The Delphi MF0073 is a standard replacement mechanical fuel pump for gasoline applications that require threaded inlet and outlet connections. Built from Delphi’s OE experience, it is suited for classic Chevrolet, GMC, and Pontiac applications that use a 2-line pump or die-cast screw type pump.

• Mechanical fuel pump for gas engines
• Threaded inlet and outlet connections
• 1/8-27 NPSF inlet fitting thread size
• 1/8-27 NPSF outlet fitting thread size
• Average flow rating: 20
• System pressure: 4 psi
• Standard replacement grade
• Package contents: mechanical fuel pump and instruction sheet

Fitment Details

• Fits 1963-1966 Chevrolet Bel Air, N/A. Compatible with vehicles equipped with 2 Line Pump or Die Cast Screw Type Pump, but not compatible with Anti-Smog systems.
• Fits 1964-1966 Chevrolet El Camino, N/A. Compatible with vehicles equipped with 2 Line Pump or Die Cast Screw Type Pump, but not compatible with Anti-Smog systems.
• Fits 1963-1966 Chevrolet Impala, N/A. Compatible with vehicles equipped with 2 Line Pump or Die Cast Screw Type Pump, but not compatible with Anti-Smog systems.
• Fits 1964-1966 Chevrolet Malibu, N/A. Compatible with vehicles equipped with 2 Line Pump or Die Cast Screw Type Pump, but not compatible with Anti-Smog systems.
• Fits 1964-1966 GMC G1000 Series, N/A. Compatible with vehicles equipped with 2 Line Pump or Die Cast Screw Type Pump, but not compatible with Anti-Smog systems.
• Fits 1965 Pontiac LeMans, N/A. Compatible with vehicles equipped with 2 Line Pump or Die Cast Screw Type Pump, but not compatible with Anti-Smog systems.
• Fits 1965 Pontiac Tempest, N/A. Compatible with vehicles equipped with 2 Line Pump or Die Cast Screw Type Pump, but not compatible with Anti-Smog systems.

What This Fuel Pump Helps Address

• Hard starting caused by weak fuel delivery
• Fuel starvation under normal mechanical pump operation
• Low fuel pressure in carbureted gasoline systems
• Replacement needs for worn original mechanical fuel pumps
• Service issues on classic Chevrolet, GMC, and Pontiac fuel systems

Installation Notes and Tips

Confirm the vehicle uses a 2-line pump or die-cast screw type pump before ordering. This Delphi MF0073 uses threaded inlet and outlet ports with 1/8-27 NPSF fittings, so matching the fuel line connection style is important for proper installation. It is not for vehicles equipped with Anti-Smog systems.

Quality Assurance

Delphi draws on more than a century of OE experience and a long history supplying major automakers. That OE heritage is reflected in the MF0073 mechanical fuel pump, which is built as a standard replacement for select classic applications.

This part cross-references Airtex Fuel Pumps 6790 and Carter M3530 for the same application.