... gray or black . valve stem seals for ford engine , material is viton , color is blackvalve stem seals ... for PEUGEOT engine , material is viton , color is blackWe are ... rubber and teflon seals. our main products are oil seals and valve stem seals. we have more ... than 200 types of valve seals for various Engine .Such as TOYOTA ,NISSAN,SUZUKI ,FIAT , VOLKSWAGEN ...