Horizon Fitness T40 Treadmill Horizon Fitness Updated September 14, 2021 21:44 For the 2004 Horizon Fitness T40 Owner's Guide, please click here. For the 2004 Horizon Fitness T40 Exploded Diagram, please click here. Was this article helpful? Yes No 0 out of 0 found this helpful Have more questions? Submit a request Related articles Horizon Fitness T40 Treadmill Horizon Fitness T30 Treadmill How to Replace the Analog Motor Control Board on a Treadmill What are Dimensions and Weight of Horizon Models? Comments 0 comments Please sign in to leave a comment.