Hoover V Belt, Part # 38528034, for Windtunnel and Mach Series This is the Hoover V Belt, part number 38528034, for the Hoover Self Propelled Windtunnels, Mach Cyclonic, Mach 5, and Mach 6 Series Upright Vacuums. The Hoover V Belt, Part # 38528034, for Windtunnel and Mach Series also goes by the part number of 40201200. Here is a list of Hoover Upright Vacuum Models that the Hoover V Belt, Part # 38528034, will fit: 40201200, U5194900, U5198900, U5780900, U5781900, U64019RM, U6420900, U6434900, U6436900, U6439900, U6445906, U6454900, U6471900, U6476900, U6476910, U6485900, U66009RM, U6607900, U6616900, U6617960, U6618900, U6630900, U6632900, U6634900, U6637900, U6637960, U8311900, U8315960, U8341900, U8341950, U8347900, U8351900, U8351950, U8361900, U8361950, U8371900, UH50000, UH50005B, UH60000, UH70010, UH70015, UH70040