Part Number: 11-0821 UOM: 1 - KIT Summary:Sifton lower collar and seal kit includes 4 lower collars machined to accept K line style seals. 2 intake seals and 2 exhaust seals included. Top of guide must be machined to accept seals. Seal installation tool included. Fitment: XL 1957-1985 Tech. Notes:14-0143 - V-Twin Intake Valve Guide Oil Seal 14-0144 - V-Twin Exhaust Valve Guide Oil Seal 16-0134 - Valve Guide Seal ToolCountry of Origin: USA