Horizon Fitness T401 Treadmill Horizon Fitness October 05, 2021 20:26 For the 2009 Horizon Fitness T401 Owner's Guide, please click here. For the 2009 Horizon Fitness T401 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 How to Replace the Running Belt and Deck on a Treadmill. How to Fix a Treadmill that is Stopping and Starting What are the Maximum User Weight for Treadmills? Horizon Fitness T701 Treadmill Treadmill Pre-Set Programs Comments 0 comments Please sign in to leave a comment.