91353-ZVP-003 O-Ring (3.5X43.7) - Overview. The 91353-ZVP-003 O-Ring (3.5X43.7) is an essential sealing part used in Honda marine engine systems, specifically designed to support the fuel and hydraulic sealing systems. This genuine OEM part provides a reliable seal that prevents leaks and ensures optimal fluid containment, which is crucial for maintaining engine efficiency and longevity. Precision manufactured to match factory dimensions of 3.5mm inner diameter and 43.7mm outer diameter, it ensu