Polaris 0450707 Crankcase Duct Tube

This crankcase duct tube is a genuine Polaris OEM replacement part designed for 90cc 4-stroke engines used in select 2001-2003 ATV models. It routes crankcase ventilation gases back into the intake system to meet emission requirements and prevent pressure buildup. Constructed from high-temperature resistant plastic and rubber composites to withstand engine bay heat and chemical exposure. The molded geometry ensures exact fitment to the engine crankcase and airbox connections without modification. Direct replacement for Polaris part number 0450707.