91251-ZZ3-003 Seal (17X36X6) - Overview. The 91251-ZZ3-003 Seal (17X36X6) is a critical component designed for Honda marine engine water pump systems. Its function is to provide a tight, reliable seal to prevent water leakage, maintaining the cooling system's integrity and ensuring the engine runs at optimal temperatures. Crafted to precise OEM specifications, this seal supports the water pump system in Honda marine engines, guaranteeing seamless integration with existing parts and long-lasting