Seal Kit for Construction Machinery PC200-6 Excavator. Premium quality hydraulic seal repair kit for construction machinery from topsealkit, delivers excellent sealing performance, exceptional pressure resistance, and perfect OEM compatibility for Komatsu PC200-6 PC200SC-6 excavators. This aftermarket premium swivel joint seal kit (Part No: 703-09-00120) is constructed with high-quality materials to provide reliable hydraulic system protection for construction, mining, and demolition sites.