91051-ZW1-B02 Bearing (50X82X21.5) - Overview. The 91051-ZW1-B02 Bearing (50X82X21.5) is a high-quality tapered roller bearing designed specifically for Honda marine engine systems. This precision component supports the moving parts within the marine engine, reducing friction and ensuring smooth, reliable operation. Manufactured to exact factory specifications, the bearing guarantees optimal fit and performance, allowing consistent rotational motion and load handling critical for marine applicat