13324-ZVP-003 Main (Upper) Brg D - Overview. The 13324-ZVP-003 Main (Upper) Brg D is an essential bearing component designed to support the main rotating elements within Honda marine engine systems. This main upper bearing plays a vital role in ensuring smooth mechanical motion and reducing friction within the crankshaft assembly, which is key to maintaining your marine engine's reliability and performance. Engineered to OEM specifications, this part ensures seamless integration with existing pa