13322-P8A-A01 Main (Upper) Brg B - Overview. The 13322-P8A-A01 Main (Upper) Brg B is an OEM main upper bearing designed to support the rotating crankshaft within Honda marine engine systems. This part is crucial for maintaining the mechanical motion and ensuring smooth operation of the engine. Precisely engineered to meet factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. OEM upper main bearing designed spec