Genuine Makita 317359-1 Gear Housing Cover for a wide range of Makita angle grinders, sanders, polishers and wall chasers, including the 9564, 9565, BO6040, DPO600 and SG1250 series. This replacement cover forms part of the tool's gear housing assembly, helping enclose and correctly support the internal drive components. Ideal for replacing a worn, cracked or damaged original cover. Makita officially identifies 317359-1 as Gear Housing Cover.