13010-ZW9-004 Ring Set (Std) - Overview. The 13010-ZW9-004 Ring Set (Std) is a crucial component in Honda marine engine systems. This standard-sized piston ring set supports the engine's combustion system by maintaining proper compression and efficient oil control within the cylinders, helping your marine engine operate reliably and at peak performance. Designed to match factory specifications exactly, it ensures seamless integration with existing parts, maintaining optimal performance and durab