90752-ZV5-003 Woodruff Key - Overview. The 90752-ZV5-003 Woodruff Key is a critical small, semi-circular metal component used in Honda marine engine systems. It supports the mechanical system by fitting into a groove on a shaft and its mating part, ensuring these parts lock together firmly and prevent any slippage that could impact performance. Designed to maintain the integrity of the connection within the engine's gear case, this key supports reliable mechanical motion and overall operational