Carter M6122 Mechanical Fuel Pump

Carter M6122 Mechanical Fuel Pump for Pontiac V8 Applications

The Carter M6122 is a mechanical fuel pump built for gasoline and diesel applications that require OE-style fit, form, and function. It is designed for long-pump-housing setups and 3-line pump configurations found on select Pontiac, Buick, and Oldsmobile vehicles.

• Mechanical fuel pump for gasoline and diesel use
• Hose inlet and hose outlet for straightforward fuel line connection
• 1 outlet with 5/8-18 UNF-2B outlet fitting thread size
• Minimum flow rating: 40
• Operating pressure range: 5 to 6.5
• Gasket or seal included
• OE-style replacement from Carter Fuel Systems

Fitment and Application Details

Compatible with a wide range of classic GM vehicles, including Fits 1975-1981 Pontiac Firebird, N/A; Fits 1977-1980 Pontiac Laurentian, N/A; Fits 1975-1978 Pontiac Bonneville, N/A; Fits 1975-1978 Pontiac Catalina, N/A; Fits 1977 Pontiac Catalina, N/A; Fits 1975-1977 Pontiac Grand LeMans, N/A; Fits 1976-1977 Pontiac Grand LeMans, N/A; Fits 1975-1977 Pontiac Grand Prix, N/A; Fits 1976-1977 Pontiac Grand Prix, N/A; Fits 1970-1972 Pontiac Grand Prix, N/A; Fits 1975-1977 Pontiac LeMans, N/A; Fits 1977 Pontiac Parisienne, N/A; Fits 1970-1976 Pontiac Catalina, N/A; Fits 1975 Buick LeSabre, N/A; Fits 1975 Oldsmobile 98, N/A; Fits 1975 Oldsmobile Custom Cruiser, N/A; Fits 1975 Oldsmobile Delta 88, N/A; Fits 1975 Pontiac Grand Am, N/A; Fits 1968-1974 Pontiac LeMans, N/A; Fits 1970-1973 Pontiac Catalina, N/A; Fits 1971-1972 Pontiac GTO, N/A; Fits 1970-1971 Pontiac Bonneville, N/A; and Fits 1970 Pontiac GTO, N/A. Notes vary by application and include 3-line pump, long pump housing, air conditioning, late production, high performance engine, high output engine, and 3 ports where listed.

This part cross-references Airtex Fuel Pumps 41382 and Delphi MF0100 for the same application. Carter M6122 is also referenced across multiple aftermarket listings for classic Pontiac fuel system service.

Common Uses

• Fuel delivery loss from a worn mechanical pump
• Hard starting caused by low fuel pressure
• Fuel starvation under load in classic V8 applications
• Restoration work on Pontiac, Buick, and Oldsmobile models with long pump housings
• Replacement of a leaking pump where the gasket or seal is needed

Installation Notes and Quality

Verify the vehicle’s pump style, line routing, and housing length before installation, especially on 3-line pump and long pump housing applications. Confirm the outlet thread size and hose connections match the existing fuel system, and inspect the mounting surface for cleanliness before fitting the included gasket or seal.

Carter Fuel Systems positions this pump line around OE fit, form, and function with broad vehicle coverage and application-specific design details. Part number M6122 should be matched to the exact engine and fuel system configuration listed for the vehicle.