90554-ZY3-000 Shim G (3.05) - Overview. The 90554-ZY3-000 Shim G (3.05) is an essential component within Honda marine engine systems, designed to provide accurate spacing and alignment. This thrust shim, with a thickness of 3.05mm, supports key mechanical systems by ensuring precise clearances and maintaining smooth operation under demanding marine conditions. Crafted following Honda's exact factory specifications, it ensures seamless integration with existing parts, maintaining optimal performa