This is the replacement Treadmill Doctor walking belt for the Fitness Gear 830T. Part Number: 056043-A. Fits the following models: Fitness Gear, 830T - TM229 - 2007, Horizon, Horizon - T100 - 2011 (TM629C), Horizon Series - T90 - 2009 (TM617), Merit Fitness, 730T - TM267 - 2007, 735T - TM629 - 2010, Tempo Fitness, 930T - TM273 - 2007.