91054-ZW1-B31 Bearing (30x62x40) - Overview. The 91054-ZW1-B31 Bearing (30x62x40) is a critical component in Honda marine engine systems. This tapered roller bearing supports the smooth mechanical operation by reducing friction between rotating parts. Manufactured to exact OEM specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. This is a genuine OEM Honda bearing designed specifically for marine engines.. It measures