HD-OEM: 18203-36Part Number: 13-9192 UOM: 1 - KIT Summary:Sifton valve spring kit includes four outer springs, four inner springs, four lower collars, four upper collars, and four pair of keepers necessary for application.Fitment: EL 1936-1940 FL 1941-1947 Tech. Notes:11-0647 - Lower Valve Collar Set 11-0644 - Upper Valve Collar Set 11-9623 - Valve Keeper Keys 13-9523 - Valve Spring SetCountry of Origin: USA