This high quality rebuild kit will fit ALL Ducati 900SS and M900's that utilize the Mikuni BST38 and BDST38 carburetors. The kit contains all original Mikuni components which are manufactured to high tolerances that ensure an exact fit. Genuine Mikuni components also last longer and remain pliable longer than any aftermarket gasket or o-ring. All kits contain the proper o-rings and gaskets to rebuild one carburetor. Power-Barn rebuild kits are guaranteed. Please see the detailed description for more information.