valve stem seals for cummins engine , material is viton , color is black valve stem seals for cummins engine , material is viton , color is blackWe are a manufacturer in ... than 200 types of valve seals for various Engine .Such as TOYOTA ,NISSAN,SUZUKI ,FIAT , VOLKSWAGEN ,MISTUBHI,HONDA,DAEWOO,CUMMINS,FORD and others cars ...