90531-ZX2-E00 Bevel (0.50) Shim D - Overview. The 90531-ZX2-E00 Bevel (0.50) Shim D is a precision-engineered metal shim designed for use in Honda marine engine systems. This 0.50mm thick shim supports the bevel gear assembly, playing a crucial role in fine-tuning gear backlash and alignment to maintain your engine's smooth and reliable operation. As an OEM genuine part, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Precision