This fuser gear (part number JC66-00810A 17T) is compatible with select monochrome laser printers including ML-1610, ML-1615, ML-1640, ML-2010, ML-2015, ML-2240, ML-2241, ML-2245, ML-2510, ML-2160, ML-3160, ML-3170, ML-3175, SCX-6200, SCX-6210, and SCX-6220.It is designed to replace worn or damaged components in the fuser assembly to help maintain normal printer.