0036402 Nut, crankpin. 37-73 45" Flathead

This Samwel crankpin nut is a high-quality replacement part for vintage Harley-Davidson 45 cubic inch 750cc Flathead models produced between 1937 and 1973. It is designed to replace OEM number 8010A, ensuring your bottom end stays together with factory-correct specifications. Samwel specializes in parts for classic Harleys, so you can trust the fitment and material quality of these nuts. Maintaining the integrity of the crankpin is vital for engine longevity, especially on these long-lived sidevalve motors. These nuts are sold as a pair, providing what you need for a complete crankpin service.