13322-ZVP-003 Main (Upper) Brg B - Overview. The 13322-ZVP-003 Main (Upper) Brg B is a critical component in Honda marine engine systems. This main upper bearing supports the crankshaft's smooth rotation within the engine block, playing a vital role in maintaining mechanical precision and engine reliability. Designed to meet strict factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. This main upper bearing is