Starter Clutch Sprag One Way Bearing compatible with XT400 (1992), XT500 (1993–1996, 2000, 2002), TT600 (1994, 1996–1998, 2004), XT600 (1993–2000, 2002), SZR660 (1995, 1997), and XT660 (1992–1994, 1996).This part is designed to replace the starter clutch sprag one way bearing and restore factory function.Compatible with OEM part numbers 3TB-15594-00 and 3TB-15590-01.Please verify compatibility with your specific model before purchase.