Delphi MF0139 Mechanical Fuel Pump

Delphi MF0139 Mechanical Fuel Pump

The Delphi MF0139 is a standard replacement mechanical fuel pump for gasoline applications that require 4 psi system pressure and a 10 average flow rating. Built with Delphi’s OE-focused engineering background, it is a practical choice for restoring fuel delivery on select classic and older vehicle applications, including Chevrolet and Ford models where a hose-bead inlet and outlet are used.

Key Features

• Mechanical fuel pump for gas fuel systems
• Standard replacement grade for direct service use
• 4 psi system pressure specification
• 10 average flow rating
• 0.313 in. inlet outside diameter and 0.313 in. outlet outside diameter
• Hose bead inlet and hose bead outlet design
• Outlet quantity: 1
• Package contents: mechanical fuel pump and instruction sheet

Product Details

Delphi MF0139 is engineered for fuel delivery service where a mechanical pump is specified. Delphi draws on more than a century of OE experience and a broad aftermarket portfolio, bringing OE heritage and application knowledge to replacement parts for a wide range of vehicles and model years. This part cross-references Airtex Fuel Pumps 1080 and Carter M60107 for the same application. Search terms such as Delphi MF0139 mechanical fuel pump, Chevrolet fuel pump replacement, and Ford mechanical fuel pump replacement are commonly used by buyers looking for this style of gas fuel system component.

Common Problems This Part Can Address

• Hard starting caused by weak fuel delivery
• Fuel starvation under normal driving conditions
• Low fuel pressure in a mechanical pump system
• Engine hesitation related to inconsistent pump output
• Replacement of a worn or failing original fuel pump

Installation Notes and Tips

Verify inlet and outlet hose size before installation, since this pump uses 0.313 in. hose-bead connections. Confirm the vehicle’s required fuel pressure is 4 psi and match the pump to the correct gasoline application. The gasket or seal is not included, so inspect the mounting surface and use the proper sealing components for the engine. Review the instruction sheet before installation and prime the fuel system after fitting the pump.

Quality Assurance

Delphi builds aftermarket parts using OE experience and supplier knowledge developed through work with major automakers. The MF0139 is a standard replacement mechanical fuel pump intended to meet the needs of service repairs where dependable fuel delivery is required.