... ,XCMG,LIUGONG,SEM,SDLG,XGMA,CHENGGONG,WATER COOLED,GAS STARTERS. CAT C6121SC11C(121) diesel engine—— Best Power of China Engineering machinerySC11C ... 1 million of sets or over being sold on the world, and the continuous technical supports provided by Caterpillar’s company ... the low temperature DIESEL ENGINE FOR SDLG SEM WHEEL LOADER CAT C6121