Caterpillar 8T1385 Hydraulic Cylinder Seal Kit is a replacement seal kit for Caterpillar hydraulic cylinders identified by OEM part number 8T1385. It is specified for cylinders with a 2.250-inch rod diameter and a 5.000-inch bore, providing seals sized to match those dimensions. Used during maintenance or overhaul to restore sealing integrity and prevent leaks in hydraulic systems on Caterpillar equipment. The 8T1385 designation signals the kit’s intended cylinder family, helping technicians select the correct kit for applicable Caterpillar machines.
