S&S Valve Keepers For Harley EVO / Twin Cam / Sportster Replace damaged, worn or missing valve keepers with these high quality replacements from S&S Cycle. Built for a precise fit and dependable service, they are a straightforward solution for maintenance or repair. Features: For EVO Big Twin heads with performance valve springs Replaces OEM 18229-83 Sold as a pack of 8 2 pieces required to service 1 valve (8 pieces required to service full engine)