90506-ZVP-000 Washer - Overview. The 90506-ZVP-000 Washer is a genuine OEM washer designed specifically for Honda marine engine systems, particularly supporting the propeller thrust system. This washer plays a crucial role in distributing load and absorbing thrust forces from the propeller shaft, thus ensuring the reliability and longevity of your marine propulsion setup. Manufactured to exact factory specifications, it guarantees seamless compatibility and optimal performance within Honda marin