231887 Moly Piston Rings Set 4 1 8 020

Hastings is the original equipment supplier for Harley-Davidson, producing the same piston rings found in factory engines. These rings feature pre-lapped faces to ensure immediate seating upon installation. The included Flex-Vent oil control ring utilizes a non-directional design, simplifying assembly while maintaining uniform pressure against the cylinder walls. This open architecture provides significantly greater drainage capacity compared to standard designs, preventing oil buildup and ensuring efficient lubrication. These rings are essential for engine overhauls where maintaining factory tolerances is a priority. This specific kit is sold as a set for two pistons.