This motorcycle starter clutch assembly is constructed from aluminum.It is compatible with models including XT600G, XT600, XT600EGC (1995), MT03, MT-03 (2006, 2007-2009), XT660R, XT660X, and XT660Z.The unit also fits F650GS and F650ST (1993-2000), 650 GA650 (1992-2000), and DS 650 (2000-2008).This part corresponds to reference number 420264577.Designed to restore starting function, this assembly serves as a direct replacement for the specified applications.