91251-ZW9-003 Seal (15x24x5) - Overview. The 91251-ZW9-003 Seal (15x24x5) is a critical water seal component used in Honda marine engine systems. It functions primarily within the engine's water pump and vertical shaft assembly, ensuring water-tight sealing to prevent leaks and maintain optimal engine cooling and reliability. Crafted to precise OEM specifications, this seal integrates smoothly with factory hardware, preserving engine performance and longevity.. Key Features. OEM genuine Honda water seal sized 15x24x5 mm.. Designed to maintain a tight seal around the water pump and vertical shaft.. Compatible with Honda marine engine systems including 4-stroke BF9.9, BF15, and BF20.. Manufactured to exceed factory dimensions and tolerance standards.. Ensures protection against water intrusion and leakage.. Facilitates dependable engine cooling and mechanical operation.. Why Choose Genuine OEM. Using the original Honda 91251-ZW9-003 Seal safeguards your marine engine's integrity by match