13345-PNA-003 Main (Lower) Brg E - Overview. The 13345-PNA-003 Main (Lower) Brg E is a crucial component within Honda marine engine systems. This main lower bearing supports the crankshaft, ensuring smooth mechanical motion and maintaining stable engine operation. Designed to withstand rigorous marine conditions, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Main (Lower) Bearing E designed specifically to support crankshaft ro