Proform Lifestyler 119038 Treadmill Safety Key Genuine Original Equipment Manufacturer (OEM) Part This part is compatible with models including; 831297361,831297362,831297363,831299300,831297364,831297360,831297365,831299301,PFTL59822,PFTL59823,PFTL59820,PFTL59821,PFTL99050,PFTL10310,QVTL37550,PFTL21460,PFTL21461,PFTL21462,WLTL29321,WLTL29320,PFTL59810,PFTL62510KD,PFTL69610,PFTL99222H,WLTL39113,WLTL85053,831297340,WLTL85054,831297341,831299520,WLTL85055,831297100,WLTL85050,WLTL85051,WLTL26080,WLTL85052,IMTL30161,IMTL19372,IMTL30160,PFTL78570,IMTL19371,IMTL19370,WLTL30570,WLTL30571,831294060 This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including; 125589,153017 Genuine Original Equipment Manufacturer (OEM) part. Compatible Brands: Proform,Weslo,Image,Healthrider,Lifestyler,Nordictrack,Weider,Sears Safety key 119038 is an original equipment manufacturer (OEM) part that fits some Proform, Weslo, Image, Healthrider, Lifestyler and Nordictrack treadmills If the key detaches from the treadmill while the treadmill is in use, the treadmill stops