Hoover Windtunnel Self Propelled 38528-035 Flat Belts 2 Pk Generic Part # 17387 Hoover Wind-tunnel Self Propelled Upright Vacuum Cleaner 38528-035 Flat Belts { 2 Belts Only } Fits With Models U-6634-900, U-6637-900, U-6637-960, U-8311-900, U-8315-960, U-8341-900, U-8341-950, U-8347-900, U-8351-900, U-8351-950, U-8361-900, U-8361-950, U-8371-900, UH-50000, UH-50005-B, UH-60000, UH-70010, UH-70015, UH-70040, U-5194-900, U-5198900, U-5780900, U-5781900, U-64019-RM, U-6420-900, U-6434-900, U-6436-900, U-6439-900, U-6445-906, U-6454-900, U-6471-900, U-6476-900, U-6476-910, U-6485-900, U-66009-RM, U-6607-900, U-6616-900, U-6617-960, U-6618-900, U-6630-900, U-6632-900. Aftermarket Part # 17387