Sumitomo SH265 Adjust Cylinder Seal Kit

This hydraulic cylinder seal kit is engineered for the adjust cylinder of Sumitomo SH265 hydraulic excavators. The kit comprises precision-molded sealing elements designed to withstand high-pressure hydraulic circuits typical of 25-30 metric ton class machinery. Primary materials include acrylonitrile butadiene rubber (NBR) for static and dynamic O-rings, polytetrafluoroethylene (PTFE) for anti-extrusion backup rings, and polyurethane (PU) for high-load rod and piston seals. The assembly includes dust wipers, buffer seals, wear rings, and all necessary O-rings for a complete cylinder rebuild. Designed for direct interchange with OEM specifications, ensuring leak-free performance and extended service intervals in construction and earthmoving applications.