This is the Treadmill Doctor Drive Belt for the Vision T-9450 HRT. Part Number: 1000109550. Fits the following models: Vision Fitness, Deluxe - T9200 - 2006 - Grey (TM186 & TC17305-4), Deluxe - T9200 - 2006 - Grey (TM186 & TC173B-6), Deluxe - T9200 - 2007 - Grey (TM240 & TC173W), Deluxe - T9200 - 2009 - Titanium Silver (TM349 & TM356), Deluxe - T9250 - 2006 - Grey (TM187 & TC42G-4), Deluxe - T9250 - 2009 - Titanium Silver (TM352 & TM356), Deluxe - T9450 - 2006 - Grey (TM188 & TC42G-4), Deluxe - T9550 - 2009 - Titanium Silver (TM353 & TM356), Premier - T9200 - 2007 - Grey (TM240 & TC175W), Premier - T9200 - 2009 - Titanium Silver (TM349 & TM357), Premier - T9450 - 2006 - Grey (TM188 & TC176B), Premier - T9450 - 2007 - Grey (TM245 & TC176W), Simple - T9200 - 2007 - Grey (TM240 & TC171W), Simple - T9200 - 2009 - Titanium Silver (TM349 & TM355), Simple - T9250 - 2006 - Grey (TM187 & TC172), Simple - T9250 - 2007 - Grey (TM244 & TC172W), Simple - T9250 - 2009 - Titanium Silver (TM352 & TM355), Simple - T9450 - 2006 - Grey (TM188 & TC172), Simple - T9450 - 2007 - Grey (TM245 & TC172W), Simple - T9550 - 2009 - Titanium Silver (TM353 & TM355), T10 - 2012 - Black/Silver (TM453), T9200 - 2002-2003 - Grey (TM49), T9250 (TM244), T9250 - 2005 - Grey (TM43F), T9250 - 2007 Deluxe - Grey (TM244 or TC174W), T9300 - 2002-2003 - Grey (TM55C), T9450HRT - 2005 - Grey (TM47F).