Seal Kit for Construction Machinery PC100-5 Excavator. Premium quality hydraulic seal repair kit for construction machinery from topsealkit, delivers excellent sealing performance, exceptional durability, and precise OEM compatibility for Komatsu PC100-5 PC120-5 excavators. This aftermarket premium hydraulic seal kit (Part No: 703-08-33110) is engineered to provide reliable hydraulic system protection, ensuring zero fluid leakage and reduced maintenance costs for construction, mining, and civil engineering applications.