Holley Vacuum Secondary Diaphragm
This vacuum secondary diaphragm replaces the existing worn-out diaphragm and is made from a high-performance rubber material.
Product Features
- Vacuum Secondary Diaphragm
- Primarily used on out board 6-pack Carburetor
- Carburetor Numbers: R3659 R4365-1 R4382-1 R4383-1 R4393-2 R4394-2 R4671 R4672 R4789 R4790
- Black rubber construction
- Durable and long lasting
- Fit type: Vehicle Specific
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