90555-ZY3-000 Shim H (3.10) - Overview. The 90555-ZY3-000 Shim H (3.10) is a critical thrust shim component within Honda marine engine systems. It functions as a precise washer or spacer with a thickness of 3.10mm, supporting proper alignment and clearance in the propeller shaft assembly. By ensuring exact tolerances and fit, it plays an essential role in keeping your marine engine operating reliably and efficiently. This genuine OEM part integrates seamlessly with adjacent hardware, seals, and