This rocker arm and camshaft assembly is compatible with Hisun 700cc models including HS700, MSU700, Supermach, Massimo, and TSC ATV and UTV vehicles.The assembly is designed to support proper valve train and engine performance.The rocker arm transfers from the camshaft to the valves to help maintain accurate timing and function.Constructed for and consistent performance under typical operating conditions, this part is designed as a direct fit replacement for the specified models to assist with engine repair and maintenance.