This is the OEM Drive Belt - 240-J/610-J for the Sole AF-80 (580810) Treadmill. Part Number: 022553, Version 1. Fits the following models: Sole: 2006 Series - F63 (563881), 2006 Series - F85 (585881), 2008 Series - VF63 (563887), 2009-2010 Series - WF63 (563888), 2009-2010 Series - WF83 (583888), 2009-2010 Series - WF85 (585888), 2009-2010 Series - WS77 (577888), 2009-2010 Series - WTT8 (588888), 2011 Series - AF63 - 2011 (563810), 2011 Series - AF65 (565810), 2011 Series - AF83 (583810), 2011 Series - AF85 (585810), 2011 Series - F80 (580810). Spirit: Esprit Motorized Treadmill - ET288 - 2010, Esprit Motorized Treadmill - ET388 - 2010, Esprit Motorized Treadmill - ET488 - 2010, Esprit Motorized Treadmill - ET588 - 2010, X Series - XT185 - 2011-2012 (185810), X Series - XT285 - 2011-2012 (285810), X Series - XT385 - 2011-2012 (385810), X Series - XT485 - 2011-2012 (485810), X Series - XT685 - 2011-2012 (685810), X Series Motorized Treadmill - XT200 - 2005-2010, X Series Motorized Treadmill - XT275 - 2005-2010, X Series Motorized Treadmill - XT285 - 2005-2010, X Series Motorized Treadmill - XT375 - 2005-2010, X Series Motorized Treadmill - XT385 - 2005-2010, X Series Motorized Treadmill - XT485 - 2005-2010, X Series Motorized Treadmill - XT675 - 2005-2010, X Series Motorized Treadmill - XT9 - 2005-2010, Xterra Fitness - TR250 - 2010 (250809), Xterra Fitness - TR350 - 2010 (350809), Xterra Fitness - TR450 - 2010 (450809), Xterra Fitness - TR550 - 2010 (550809), Xterra Fitness - TR6.2 - 2012 (162811), Xterra Fitness - TR6.5 - 2011 (765810), Xterra Fitness - TR6.55 - 2012 (165811), XZ600, Z Series Treadmill - Z500 - 2004-2006.30 Days Warranty.Date First Available: March 19, 2012. Best Sellers Rank: #360,643 in Sports & Outdoors. Customer Reviews: 4.5 out of 5 stars 3 ratings 4.5 out of 5 stars. : B007MAOTOE. Part Number: ?56847. Manufacturer: ?Treadmill Doctor. Brand Name: ?Treadmill Doctor. Package Weight: ?0.9 Pounds. Item Package Dimensions L x W x H: ?2 x 2 x 2 inches.