The Shibaura 398566490 is an authentic OEM clutch thrust bearing designed for Shibaura ST445 series tractors. This critical component facilitates the engagement and disengagement of the clutch, providing reliable and smooth operation. Manufactured to Shibaura's stringent quality standards, this thrust bearing ensures optimal performance and extended service life for your agricultural machinery. It is a direct replacement part, guaranteeing perfect fitment and function within the clutch assembly.