Delphi MF0156 Mechanical Fuel Pump

Delphi MF0156 Mechanical Fuel Pump

The Delphi MF0156 is a standard replacement mechanical fuel pump for gasoline applications that require 6 psi system pressure and an average flow rating of 40. Built from Delphi’s OE heritage and aftermarket experience, it is a practical choice for restoring fuel delivery on select Pontiac models from 1969-1971.

• Mechanical fuel pump for gas engines
• 6 psi system pressure
• Average flow rating: 40
• Inlet outside diameter: 0.375 in.
• Hose bead inlet with threaded outlet
• Outlet fitting thread size: 5/8-18 UNF
• Standard replacement grade
• Package contents: mechanical fuel pump, instruction sheet

Fitment Details

Compatible with select Pontiac Catalina, Firebird, GTO, LeMans, Bonneville, and Tempest applications with a 2 line pump and without air conditioning. Fits 1969-1971 Pontiac Catalina, N/A; 1969-1971 Pontiac Firebird, N/A; 1971 Pontiac GTO, N/A; 1970-1971 Pontiac LeMans, N/A; 1969-1970 Pontiac Bonneville, N/A; and 1969-1970 Pontiac Tempest, N/A.

This part cross-references Airtex Fuel Pumps 40680 and Carter M4868 for the same application. The Delphi MF0156 is also listed against other interchange references for this fuel pump application.

What This Fuel Pump Helps Address

• Hard starting caused by weak fuel delivery
• Fuel starvation during normal engine operation
• Low fuel pressure at the carburetor
• Inconsistent drivability from an aging mechanical pump
• Restoration needs on select Pontiac fuel systems

Installation Notes

Verify the vehicle uses a 2 line pump and does not have air conditioning before ordering. Confirm inlet and outlet style, outlet thread size, and fuel line routing against the original pump before installation. Use the included instruction sheet during replacement and inspect the fuel lines, mounting surface, and sealing surfaces for wear or damage.

Quality Assurance

Delphi draws on more than a century of OE experience and a broad aftermarket portfolio, with engineering knowledge carried into replacement parts for a wide range of vehicles and model years. The MF0156 is a standard replacement fuel pump built to support direct-fit service on the listed Pontiac applications.