Carter M6978 Mechanical Fuel Pump

Reliable Mechanical Fuel Pump for Ford Bronco and F-Series Trucks

The Carter M6978 mechanical fuel pump is designed to deliver consistent fuel flow and pressure for Ford Bronco, F-150, F-250, and F-350 models. Engineered to meet the specific requirements of these vehicles, this pump ensures efficient fuel delivery for optimal engine performance.

• Mechanical fuel pump with 1 inlet and 1 outlet
• Inlet outside diameter: 9.5 mm with hose-type connection
• Threaded outlet fitting with 1/2-20 UNF thread size
• Minimum flow rating of 40 gallons per hour
• Operating pressure range between 4.5 and 6.5 psi
• Includes gasket or seal for secure installation
• Two mounting holes for stable attachment (mounting hardware not included)

Product Details and Specifications

The Carter M6978 mechanical fuel pump is built to provide reliable fuel delivery for Ford Bronco and F-Series trucks including the F-150, F-250, and F-350. Featuring a hose-type inlet with a 9.5 mm outside diameter, it connects easily to existing fuel lines. The outlet is threaded with a 1/2-20 UNF fitting, ensuring a secure and leak-free connection. This pump supports a minimum flow rating of 40 gallons per hour and maintains fuel pressure between 4.5 and 6.5 psi, which aligns with the fuel system requirements of the specified Ford models. The pump includes a gasket or seal to help prevent leaks during installation, though mounting hardware is not included. With two mounting holes, it can be securely fastened to the engine block or mounting bracket.

Applications and Common Issues Addressed

• Replacement for worn or failing mechanical fuel pumps on Ford Bronco and F-Series trucks
• Resolves low fuel pressure causing engine hesitation or stalling
• Fixes inconsistent fuel flow that leads to poor engine performance
• Addresses fuel leaks by providing a proper seal with included gasket
• Restores fuel delivery system reliability in older or high-mileage vehicles

Installation Notes and Tips

When installing the Carter M6978 mechanical fuel pump, ensure the gasket or seal is properly seated to prevent fuel leaks. Verify that the inlet hose diameter matches the 9.5 mm specification for a secure fit. Use the two mounting holes to firmly attach the pump to the engine block or bracket; note that mounting hardware is not included and must be sourced separately. Confirm that the outlet fitting thread size (1/2-20 UNF) matches your fuel line connection to avoid compatibility issues. It is recommended to inspect fuel lines and related components during installation for any signs of wear or damage.

Quality Assurance and Warranty Information

Carter mechanical fuel pumps are manufactured to meet OEM standards for durability and performance. The M6978 part number undergoes rigorous quality control to ensure consistent fuel delivery and pressure regulation. This product includes a gasket or seal to support leak-free installation. Warranty coverage details should be confirmed with the original equipment manufacturer or authorized distributor.