90521-ZVP-000 Gear Shim D - Overview. The 90521-ZVP-000 Gear Shim D is a precision washer component specifically designed for Honda marine engine systems. It plays a critical role in the gear assembly by adjusting the meshing and clearance of gears within the transmission system, maintaining the integrity and smooth operation of the marine engine drivetrain. This gear shim ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Precise washer used to adjust gear mesh and clearance within the transmission.. Genuine OEM component, ensuring exact factory specifications and quality.. Designed to match factory dimensions and tolerances for reliable fit.. Supports efficient mechanical power transmission in Honda marine engines.. Integrates cleanly with adjacent gears, seals, and housings.. Helps maintain expected durability, performance, and mechanical feel.. Why Choose Genuine OEM. Using original Honda parts like the 90521-ZVP-000 Gea