13322-Pwa-003 Main (Upper) Brg B - Overview. The 13322-PWA-003 Main (Upper) Brg B is a critical component within Honda marine engine systems. This main bearing supports the rotating crankshaft at the upper section of the engine, ensuring reliable mechanical motion and stable engine operation. Manufactured to precise OEM specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. The part is a genuine OEM main bearing part de