Description

Hygrade:FM64-179
Standard Motor Products Hygrade Carburetor Pump Diaphragm. Part FM64-179.
The Hygrade FM64‑179 is an accelerator pump diaphragm (also referred to as a carburetor accelerator pump or pump plunger kit). It is an OE‑style replacement used to restore proper carburetor fuel delivery during throttle tip‑in.
Primary Application
Carburetor Type
Ford 2‑barrel & 4‑barrel carburetors
This fitment is listed directly in manufacturer‑supplied specifications
Fitment
Because the FM64‑179 fits multiple carburetor types, exact compatibility depends on:

Vehicle year
Make / model
Engine
Carburetor model (Ford 2BBL/4BBL, Rochester Quadrajet, etc.)
Tell me what vehicle you’re working on, and I’ll confirm precise fitment.