Delphi MF0099 Mechanical Fuel Pump

Delphi MF0099 Mechanical Fuel Pump

The Delphi MF0099 is a standard replacement mechanical fuel pump for gasoline applications that require threaded inlet and outlet connections, 6.5 psi system pressure, and a 12 average flow rating. Built with Delphi OE heritage and application knowledge, it is a direct option for 1982-1983 Chevrolet S10, 1983 Chevrolet S10 Blazer, 1982-1983 GMC S15, and 1983 GMC S15 Jimmy service needs.

Key Features

• Mechanical fuel pump for gas engines
• Threaded inlet and threaded outlet design
• Outlet fitting thread size: 1/2-20 UNF
• System pressure: 6.5 psi
• Average flow rating: 12
• Standard replacement grade for service work
• Gasket included in the package contents

Application Details

Delphi MF0099 is built for vehicles that use a mechanical fuel pump with a 0.375-inch inlet outside diameter and dual outlet configuration. It is a practical replacement for fuel delivery service on 1982-1983 Chevrolet S10, 1983 Chevrolet S10 Blazer, 1982-1983 GMC S15, and 1983 GMC S15 Jimmy models. This part cross-references Carter M60284 for the same application.

Common Issues It Can Address

• Hard starting caused by weak fuel delivery
• Fuel starvation during acceleration or load changes
• Low fuel pressure at the carburetor
• Engine stalling from inconsistent mechanical pump output
• Fuel system service on aging Chevrolet S10 and GMC S15 platforms

Installation Notes

Verify inlet and outlet thread style, outlet fitting thread size, and system pressure before installation. Replace the gasket during service and confirm fuel line routing matches the threaded inlet and dual outlet layout. After installation, check for leaks and confirm stable fuel pressure at operating speed.

Quality Assurance

Delphi draws on more than a century of OE experience and supplier knowledge used by major automakers. The MF0099 reflects that background with a standard replacement design for fuel system service on classic Chevrolet and GMC compact trucks and SUVs.