Idler Pulley GY20067, GY22172 78-118 This idler pulley is designed to maintain proper belt tension in engine systems.It is compatible with models using part numbers GY20067 and GY22172.The pulley features a construction suitable for consistent performance under regular operating conditions.It has an outer diameter of 78 mm and a total length of 118 mm, accurate fitment for specified applications.The unit includes a bearing for smooth rotation and reduced wear on the belt system.Installation requires standard tools and follows typical procedures for belt-driven components.Compatibility Disclaimer: This is an part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.