Motorcycle Starter Clutch Bearing compatible with DRZ400E (2000–2007), DRZ400S (2000–2018), DRZ400SM (2005–2018), LTZ400 QuadSport (2003–2013), KFX400 (2003–2006), KLX400 / KLX400R / KLX400SR (2003–2004), Arctic DVX400 (2004–2008).Fits part numbers 12600-29810, 13216-S010, and 3445-031.Designed as a direct replacement for the starter clutch bearing.Functions to engage the starter motor with the engine crankshaft during startup and disengage once engine speed exceeds starter motor speed.Made in China.Includes one starter clutch bearing. This is a compatible aftermarket part.References to brands or models do not imply OEM association.