Delphi MF0089 Mechanical Fuel Pump

Delphi MF0089 Mechanical Fuel Pump Overview

The Delphi MF0089 is a standard replacement mechanical fuel pump for gasoline applications, built with OE heritage and application knowledge drawn from Delphi’s long history supplying major automakers. It features threaded inlet and outlet connections, a 5 psi system pressure rating, and a 50 average flow rating for classic carbureted fuel delivery needs.

Compatible With 1955-1957 Chevrolet Corvette and 1957 Chevrolet Bel Air applications that use a 2 line pump with a die cast screw type pump. The Delphi MF0089 also includes a gasket and instruction sheet for a straightforward service replacement.

Key Features

• Mechanical fuel pump for gas applications
• Standard replacement grade for service work
• Threaded inlet and outlet connections
• 1/8-27 NPSF inlet and outlet fitting thread size
• 5 psi system pressure rating
• 50 average flow rating
• Gasket included
• Package contents: mechanical fuel pump, gasket, instruction sheet

Detailed Product Description

Delphi MF0089 is engineered for classic fuel delivery systems that rely on a mechanical pump mounted to the engine. Its threaded inlet and outlet design, single outlet configuration, and 1/8-27 NPSF fitting sizes make it a direct-fit style replacement for the listed Chevrolet applications. Delphi’s OE background is reflected in the part’s construction and application coverage, giving buyers a practical option for restoring fuel supply on vintage carbureted vehicles.

This part cross-references Airtex Fuel Pumps 4460 and Carter M2468 for the same application. It is also listed among interchange references including Spectra Premium SP1079MP.

What This Fuel Pump Helps Address

• Hard starting caused by weak fuel delivery
• Fuel starvation at the carburetor
• Low fuel pressure in mechanical pump systems
• Stalling related to inconsistent gasoline flow
• Service replacement for worn original fuel pumps

Installation Notes and Fitment

Fits 1955-1957 Chevrolet Corvette, N/A, with 2 Line Pump; with Die Cast Screw Type Pump. Fits 1957 Chevrolet Bel Air, N/A, with 2 Line Pump; with Die Cast Screw Type Pump.

Before installation, confirm the vehicle uses the specified 2 line pump configuration and die cast screw type pump setup. Verify inlet and outlet thread sizes match the fuel line connections, and inspect the mounting surface and gasket sealing area for wear or contamination. Follow the included instruction sheet during installation and prime the fuel system before starting the engine.

Quality Assurance

Delphi builds aftermarket parts using OE heritage and knowledge developed through more than a century of supplying original equipment to major automakers. The MF0089 is a standard replacement mechanical fuel pump backed by that application-focused engineering approach.