Swivel Joint Seal Kit for Komatsu 703-08-13102 Construction Machinery. Premium quality hydraulic seal repair kit for construction machinery from topsealkit, delivers excellent sealing performance, exceptional wear resistance, and perfect OEM compatibility for Komatsu PC50UU excavators. This aftermarket premium swivel joint seal kit is engineered to provide reliable hydraulic system protection, ensuring zero fluid leakage and extended equipment service life for construction, landscaping, and utility applications.