we supply genuines CUmmins piston kit as following part No.: piston N 3017348 3017349 3048808 K19 3036073 3036074 3096685 K38 3070703 3036073 3036074 K50 3036073 3036074 　 piston ring N 3801056 K19 3631248 K38 3631248 K50 3631248 piston pin N 191970 K19 205200 K38 205200 K50 205200