91301-805-000 O-RING (26X2.7) - Overview. The 91301-805-000 O-RING (26X2.7) is an essential sealing component designed for Honda marine engine systems. This O-ring supports the engine's sealing system, ensuring a secure and leak-proof fit that prevents water, oil, or fuel leaks and contamination. Manufactured to precise factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine OEM Honda part ensuring perfec