Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy Nascar Cup team and nearly every NHRA Pro–Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM’s popular LS engine are dominating the LS scene as well. Holley’s products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies we can give you the edge you need over the competition!
- 30cc GFLT accelerator pump diaphragm
- GFLT Diaphragms Are Compatible For Use w/All Alcohol Based Fuels
- Genuine Holley Quality Parts
- Easy installation
- Durable and long lasting
- Fit type: Vehicle Specific









Amazon Customer –
Solved issue of replacing diaphragm after being parked for long period…
Amazon Customer –
i bought to go into holley regulator to fix constant new california fuel with achol problems eating original type diaphrams however this has no pin cause for a carberator so i soldered on a pin and working fine, i have since found that this is available with the pin already on but was easy to solder on anyway and it works just took a bit of ingenituy.
a retired school teacher –
This pump diaphragm is made of a newer material than the original rubber-based unit, and is supposed to have a much longer service life. Several YouTube videos provide easy instruction on the installation process.
JKh1351 –
Kind of fit my Holley carb. Had to use a leather punch to enlarge the holes. Worked great after installing. Good for that worthless ethanol gas.
Ashleigh Nesselrodte –
good quality good price ????
Tom R. Harrington –
1966 Mercury Cyclone GT 390 with stock Holley carburetor
Amazon Customer –
Perfect performance product , perfect fit for my Carburator
Chef Cliff –
Needed two of these was in a pinch, ordered up and was surprised when they came from a shop I used for many years!