These keys are a standard size for various Proform, Weslo, Weider Weslo, Lifestyler, Image, Healthrider, Good Family, ReeBok, NordicTrack, Golds Gym and Cardio Trainer Treadmills. Part # 119038 and 119039.
Maintenance Tip: Annual walking belt lubrication with our World Famous Treadmill Lube will help prevent damage to the motor and other expensive electrical parts.
