Carter M3120 Mechanical Fuel Pump

Carter M3120 Mechanical Fuel Pump

The Carter M3120 is a mechanical fuel pump built for OE-style fit, form, and function in classic Chevrolet applications. It features threaded inlet and outlet connections, a gasket or seal included, and pressure and flow specifications suited to carbureted fuel delivery systems.

• Mechanical fuel pump design
• 1 threaded inlet and 1 threaded outlet
• Outlet fitting thread size: 1/4-18 NPSF
• Gasket or seal included
• Minimum flow rating: 30
• Operating pressure range: 5 to 6.5
• Direct replacement-style coverage for select Chevrolet models

Vehicle Fitment

• Fits 1958-1969 Chevrolet Bel Air, N/A
• Fits 1966 Chevrolet Caprice, N/A
• Fits 1966 Chevrolet Corvette, N/A, without 350 Horsepower Engine
• Fits 1958-1966 Chevrolet Impala, N/A
• Fits 1966 Chevrolet Malibu, N/A
• Fits 1962-1965 Chevrolet Corvette, N/A

Built for classic Chevrolet fuel systems, this Carter fuel pump supports consistent mechanical fuel delivery for carbureted engines. The threaded inlet and outlet simplify connection to the fuel lines, while the included gasket or seal helps complete the installation. The M3120 is a practical choice for restorations and maintenance on Chevrolet Bel Air, Impala, Corvette, Caprice, and Malibu models within the listed years.

Common Uses

• Restoring fuel delivery on a classic Chevrolet Bel Air or Impala
• Replacing a worn mechanical pump on a 1962-1965 Chevrolet Corvette
• Addressing hard-start or fuel starvation conditions in carbureted systems
• Correcting low fuel pressure in vintage Chevrolet applications
• Replacing a leaking pump body or aged fuel connections

Installation Notes

Confirm the threaded inlet and outlet sizes before installation and verify the outlet fitting thread size is 1/4-18 NPSF. This pump uses mechanical operation and does not include mounting hardware. Always inspect fuel lines, gaskets, and the mounting surface for wear before assembly.

Quality Assurance

Carter Fuel Systems focuses on OE fit, form, and function with broad vehicle coverage and application-specific solutions. The M3120 is engineered to match the requirements of select classic Chevrolet fuel systems and is supported by Carter’s established fuel system product line.

This part cross-references Airtex Fuel Pumps 4657 and Spectra Premium SP1062MP for the same application.