13322-ZX2-003 Main (Upper) Brg B - Overview. The 13322-ZX2-003 Main (Upper) Brg B is a critical component supporting the main bearing system within Honda marine engine systems. It functions as the upper main bearing, ensuring smooth rotational motion and bearing endurance which are essential for the reliable operation of the engine's crankshaft assembly. Designed to meet exact factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durabil