Edelbrock 50cc accelerator pump diaphragms provide increased pump chamber capacity for 4150-series carburetors and are supplied as a set of eight. These 50cc diaphragms serve as direct replacements to restore accelerator pump function on compatible Holley-style carburetors. Proper installation is the installer's responsibility; incorrect installation may impact performance or vehicle operation.
Edelbrock Accelerator Pump Diaphragm 50cc