... , Dawoo, Hyundai, Sumitomo, Samsung,etc Recoil sping track coil spring for excavator and bulldozer Specifications Recoil spring Track coil spring for Komatsu, Caterpillar, Hitachi, Kato ... product design Compatible types: Komatsu: PC40,PC60-5-6-7, PC100,PC120, PC130,PC240, PC200-1-3-5-6, PC220-1 ...