The Holley 135-14 is a 50cc accelerator pump diaphragm for Model 2300, 4150, 4160, and 4500 carburetors that use the 50cc pump housing. Molded from rubber and supplied with its mounting screws, it is a complete replacement for a leaking or fatigued original that has caused an off-idle stumble. This rubber diaphragm is intended for gasoline use and is not recommended for alcohol-based fuels; the GFLT version should be used for alcohol.

Holley 135-14 Features:

• 50cc accelerator pump diaphragm
• Rubber construction for gasoline use
• Includes mounting screws
• Fits Holley Model 2300, 4150, 4160, and 4500 carburetors with 50cc pumps
• Not recommended for alcohol-based fuels; sold individually