The Heavy Duty Crankshaft Assembly (Shaft Type, 38 mm) is precision-engineered for the 178F engine power weeder, designed to deliver optimum strength and reliability under demanding field conditions. Manufactured from high-grade, heat-treated steel, this assembly ensures smooth rotation and maximum engine performance. The 38 mm shaft provides compatibility with designated agricultural equipment, making it a dependable choice for engine rebuilds and long-lasting crankshaft durability.