Auto piston ring compatible with Komastu series: 1. Dia from 95. 00mm---155. 00mm 2. Engine Type: 4D95, S6D95, S6D95-6, S6D102, 4D105, S6D105, S6D110, 6D105, 6D125, S6D120, S6D130, S6D140, S6D155, SA6D155 etc. Remark: 1)For European& American, Korean & Japanese etc. 2)Good quality 3)Competitive price 4)Secure service 5)products: Piston, piston ring, engine bearing, cylinder liner. 6)We can develop new items for you especially.