Caterpillar 629-0645 Bucket Cylinder Seal Kit

This hydraulic cylinder seal kit is engineered to meet Caterpillar OEM specifications for bucket cylinder repair on 350-series excavators. The kit includes piston seals, rod seals, buffer seals, wear rings, and O-rings manufactured from high-performance nitrile (NBR) and PTFE materials suitable for high-pressure hydraulic systems operating at 35 MPa maximum pressure. Designed for direct replacement of Caterpillar part numbers 629-0645 and 350-0967. Compatible with Caterpillar 350 and 350L hydraulic excavators. Each seal component is dimensionally verified to ensure proper groove fit and sealing performance under heavy-duty excavation cycles. Kit contents provide complete reseal capability for one bucket cylinder assembly.