91302-ZY6-003 O-Ring (79.8X3.1) - Overview. The 91302-ZY6-003 O-Ring (79.8X3.1) is a critical sealing component used in Honda marine engine systems, designed to prevent leaks and ensure fluid containment. Positioned within the rigging or accessory subsystems, this O-Ring supports the engine's reliability by providing a durable, precise seal that matches factory specifications. Made from highly resilient fluorocarbon material, it resists wear, chemicals, and environmental impacts, ensuring seamle