Delphi MF0153 Mechanical Fuel Pump

Delphi MF0153 Mechanical Fuel Pump

The Delphi MF0153 is a standard replacement mechanical fuel pump for gasoline applications that require a 5 psi system pressure and a 38 average flow rating. Built with Delphi’s OE-focused engineering background, it is a direct-fit option for select 1967 Pontiac models, including Bonneville, Catalina, Firebird, and Grand Prix.

Key Features

• Mechanical fuel pump for gas engines
• System pressure: 5 psi
• Average flow rating: 38
• Inlet outside diameter: 0.375 in.
• Hose bead inlet type with threaded outlet design
• Outlet quantity: 2 with 5/8-18 UNF outlet fitting thread size
• Gasket or seal included
• Package contents: mechanical fuel pump, gaskets, instruction sheet
• Standard replacement grade

Detailed Description

Delphi MF0153 is engineered as a mechanical fuel pump replacement for classic Pontiac fuel systems that call for a 3-line pump and air conditioning-specific fitment. It is listed for 1967 Pontiac Bonneville, 1967 Pontiac Catalina, 1967 Pontiac Firebird, and 1967 Pontiac Grand Prix, making it a focused solution for owners restoring or maintaining these vehicles. This part number, MF0153, reflects Delphi’s OE heritage and application coverage for older model-year vehicles.

This part cross-references Airtex Fuel Pumps 40590 and Carter M4684 for the same application.

What It Helps Address

• Hard starting caused by inadequate fuel delivery
• Fuel starvation at the carburetor under normal driving conditions
• Low fuel pressure in a mechanical pump system
• Fuel supply issues on 1967 Pontiac Bonneville, Catalina, Firebird, and Grand Prix applications
• Replacement needs for a worn or failing 3-line mechanical fuel pump

Installation Notes and Tips

Verify that the vehicle uses a gasoline mechanical fuel pump setup with air conditioning and a 3-line pump configuration before installation. Confirm inlet and outlet connection styles, including the 0.375-inch hose bead inlet and threaded outlet with 5/8-18 UNF fitting size, to ensure proper routing and sealing. Use the included gaskets during installation and follow the instruction sheet for correct mounting and fuel line connection.

Quality Assurance

Delphi draws on more than a century of OE experience and supplier knowledge from working with major automakers. That background is reflected in the MF0153’s standard replacement design and application-specific engineering for classic Pontiac fuel systems.