91301-ZE9-003 O-Ring (22.1X2.2) - Overview. The 91301-ZE9-003 O-Ring (22.1X2.2) is an essential sealing component designed for Honda marine engine systems. This O-ring supports the engine's sealing system to prevent leaks, maintain optimal pressure and fluid containment, and ensure the engine operates reliably without mechanical issues caused by fluid escape. Precisely engineered to match factory specifications and tolerances, it integrates cleanly with existing hardware, seals, or housings, mai