Delphi MF0114 Mechanical Fuel Pump

Delphi MF0114 Mechanical Fuel Pump

Delphi MF0114 is a standard replacement mechanical fuel pump for gasoline applications that require threaded inlet and outlet connections, 8 psi system pressure, and an average flow rating of 30. Built from Delphi’s OE heritage and decades of supplier experience, it is a practical choice for restoring fuel delivery on select Chevrolet G10, Chevrolet G20, Chevrolet G30, GMC G15, GMC G25, GMC G35, GMC G1500, GMC G2500, and GMC G3500 vans.

Key Features

• Mechanical fuel pump for gas engines
• Threaded inlet and threaded outlet design
• Outlet fitting thread size: 5/8-18 UNF
• System pressure: 8 psi
• Average flow rating: 30
• Gasket or seal included
• Package contents: mechanical fuel pump, gaskets, instruction sheet
• Standard replacement grade for service repairs

Detailed Description

The Delphi MF0114 fuel pump is built for vehicles that use a mechanical, engine-driven fuel delivery system. It features a 0.375-inch inlet outside diameter, two threaded outlets, and a threaded inlet for secure connection to the fuel lines. Delphi draws on OE-level engineering knowledge to produce aftermarket parts that match the needs of older vehicle platforms, including applications with air conditioning and 3-line pump configurations. This part cross-references Carter M6954 and Carlson 41302 for the same application.

Compatible With 1977-1980 Chevrolet G10, 1977-1980 Chevrolet G20, 1977-1980 Chevrolet G30, 1977-1978 GMC G15, 1977-1978 GMC G25, 1977-1978 GMC G35, 1979-1980 GMC G2500, 1979-1980 GMC G3500, 1980 GMC G1500, 1980 GMC G2500, 1980 GMC G3500, and 1981 Chevrolet G10, 1981 Chevrolet G20, 1981 GMC G1500, 1981 GMC G2500.

What It Helps Fix

• Hard starting caused by weak fuel delivery
• Fuel starvation under load or at higher engine demand
• Low fuel pressure in a mechanical pump system
• Fuel leakage at worn pump seals or connections
• Driveability issues from inconsistent fuel flow

Installation Notes and Tips

Verify inlet and outlet thread sizes, fuel line routing, and pump style before installation. This pump is listed for gasoline use and for vehicles with confirmed 3-line pump or air conditioning configurations where noted in the fitment data. Use the included gaskets during installation and follow the instruction sheet for proper mounting and line connection. Confirm that the vehicle’s fuel system calls for an 8 psi mechanical pump before replacement.

Quality Assurance

Delphi builds this replacement pump using OE heritage and application knowledge developed through long-term supplier experience with major automakers. The MF0114 is specified as a standard replacement part for the listed applications and is supported by Delphi’s broad aftermarket portfolio for older vehicle platforms.