Komatsu excavator engine piston 1) OEM: 6140-31-2113 2) for Komatsu ... sale, like the following: Komatsu excavator engine, Mitsubishi engine, Suzuki engine, CAT excavator engine, Yammner engine, Perkins engine, Hino engine, Nissan engine, Daewoo engine ...........2) engine types: 4D92, 4D94, 4D95, 4D96 ... good packing, fast delivery and good after-service Komatsu excavator engine piston 6140-31-2113