Bushing for the lower row of final drives HITACHI EX30 Bushing HITACHI EX30 (0436507) The presented bushing is an element of the bearings in the gears of many HITACHI excavators. Its number in the catalog is 0436507. It is a sleeve for the lower row of satellites. It is used in the transmission of EX25, EX30, EX35 models. The sleeve has an internal diameter of 28mm, an external diameter of 40mm and a height of 17.5mm. When you buy from us, you receive a product covered by a manufacturer's warranty, which covers any product defects.