Treadmill Drive Belt — Part Number 106939 What this part does Transfers motor power to the treadmill belt and rollers, restoring reliable forward drive. Replaces a worn or damaged drive belt to eliminate slippage, uneven motion, noise, and intermittent power loss. Key benefits Restores dependable treadmill performance so workouts feel smooth and consistent. Reduces noise and vibration caused by a degraded belt. Extends equipment life by returning proper power transmission to the drive system. Directfit replacement when your machine lists part number 106939, avoiding fitment guesswork. Important attributes Function: Drive belt for treadmill motortoroller power transmission. Compatibility: Intended as the replacement for treadmills that specify Part Number 106939. Confirm fit by matching the part number in your owner's manual, parts diagram, or equipment label. Size & material: Manufactured to match original equipment specifications for size, profile, and materials used by the equipment maker for part number 106939. Performance: Designed to provide consistent grip, proper tensioning, and long service life when installed per manufacturer guidelines. Typical applications a stretched or glazed drive belt causing belt slip or loss of drive power during workouts. Routine maintenance to refresh worn drive components and restore factory performance. after sudden belt failure to get commercial or home treadmills back in service quickly. How to ensure compatibility Check your treadmill's parts list or the label on the unit for Part Number 106939 before ordering. If you are unsure, compare the part number with the equipment manufacturer's documentation or contact your service provider to verify fit. Why choose this part Specifically identified as Part Number 106939 to match original equipment requirements. Focused solution for restoring motortoroller drive function and treadmill reliability without altering machine specifications.