engine blocks used for the Cummins, Caterpillar, Toyota etc. Cylinder blocks for follow: Cummins: 6ct one thermostartor, 6ct two thermostartor, ... 6bd1,4jb1, 4jg2, 4jg2t, 4ja1.4bd2t.Toyota: 2Y, 3Y, 4Y,Kia: B3EKomatsu:PC200-5Benz: OM366,OM366A etc.Cylinder head for follow: ... 12100-pob-a00)Isuzu: dh100, 6bb1, 4jb1, 4jg2, 4jg2t, 4ja1.4bd2t.Iveco (cylinder heads cylinder blocks): 307Jata: 20 valves 1.8l, ...