84-20 Sportster, 85-94 FX Model, 91-17 Dyna, 84-23 Softail, 85-23 Touring, 09-23 Trike
These American-made retaining rings are used to join the exhaust flange and pipe to the cylinder head on all Evolution and Twin Cam Big Twin models from 84-17, and Evolution Sportster models from 86-17.