91253-ZW1-003 Water Seal - Overview. The 91253-ZW1-003 Water Seal is a critical OEM component designed to support the water pump system in Honda marine engine systems. This seal plays a vital role in preventing water ingress, protecting the internal components of your outboard engine from damage and corrosion. Designed to maintain the integrity and reliability of your marine engine, the 91253-ZW1-003 ensures seamless integration with existing parts, maintaining optimal performance and durability