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Upgrade or replace the diaphragm on your constant velocity (CV) carburetor with the HARDDRIVE 40 mm Carb Slide Diaphragm. Engineered for precise throttle response and reliable sealing, this OEM-fit component restores smooth acceleration and consistent fuel delivery.
Whether you're performing routine maintenance or repairing a CV carburetor, the HARDDRIVE 40 mm CV Carb Slide Diaphragm delivers reliable fit and performance. Check compatibility with your carburetor model before purchase.