91055-ZY6-003 Bearing (50x90x20) - Overview. The 91055-ZY6-003 Bearing (50x90x20) is an essential component within Honda marine engine systems. It functions as a radial ball bearing designed to support rotational movement by reducing friction between moving parts, ensuring reliable and smooth operation of the engine and drive systems. Engineered to exact factory specifications, this bearing fits seamlessly into Honda's marine applications, delivering consistent performance and durability require