Compatible With Hoover Windtunnel Self-Propelled Models U6485900 And So On. Replacement For Hoover Vac Belt Part: 38528-035 (38528035) / Style 170 / 40201170. | | ?Installation Instructions?: Step1: For Safety, Make Sure That Your Vacuum Is Unplugged.Step2: Remove Screws On Bottom Of Vacuum. Step3: Lift Cover To Expose Brush And Belt And Remove Old Belt. Step4: Hook New Belt Onto Motor Shaft. | | Vacuum Belts Greatly Improve The Operating Efficiency Of Your Vacuum Cleaner. | | Include Four 38528-035 Power Drive Belts In A Package. | | ?Kindly Note?Replace Your Belts Every 3 To 6 Months To Keep Your Vacuum Cleaning Performance. | |