90558-ZY3-000 Shim K (2.60) - Overview. The 90558-ZY3-000 Shim K (2.60) is a precision thrust shim designed for Honda marine engine applications. It is part of the rigging and accessory components that play a vital role in maintaining proper mechanical alignment and clearance within the propulsion system. This shim supports the thrust system by enabling fine adjustments in spacing to ensure efficient operation and to prevent wear on critical parts.. Key Features. OEM Honda part designed to facto