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45CI Clutch

42 products

Category dedicated to clutch components for 45 cubic inch (740 cc) Harley-Davidson engines, commonly known as Knucklehead. Includes pressure plates, clutch plates, clutch springs, clutch baskets and gasket kits for the primary case.

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About this category

Parts compatible with Harley-Davidson Knucklehead models (1936-1947) and some modern conversions or replicas using this classic engine block. Ideal for original restorations or primary performance upgrades. Materials available in steel and aluminium depending on the manufacturer.

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