Description
Restore the vacuum-operated secondary mechanism on a compatible Holley carburetor with this replacement diaphragm. A damaged secondary diaphragm can prevent the secondaries from responding as designed.
Product details
- Part number 135-4
- Viton diaphragm material
- Manufacturer-listed diaphragm rod length: 2.054 in
- One carburetor vacuum-secondary service component
Compatibility: Select Holley carburetor list numbers including R1849-50, R3310, R4452-1, R4548 and further list numbers identified by Holley.
Before installation: Match the carburetor list number stamped on the carburetor to the manufacturer application list before purchase; engine or vehicle alone is not a sufficient match.
Warranty: Holley manufacturer limited 90-day warranty.
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