SBT sells the motor on a rebuildable core exchange basis. Visit Program Description for further details. This is a Standard remanufactured Kawasaki 1200 engine. It includes the cases, cylinders, trued and welded Crankshaft, head, all new internal parts & a woodruff key. Installation Gasket Kit required. NOTE! If you have a 1999 Ultra150 with the original ignition you need a special spark plug R6918C9, available at SBT. DO NOT install a standard NGK plug. If you in doubt as to which ignition your ski has, contact your local dealer. Please call SBT for shipping ratesAt this time the item you are selecting is sold on a cores first basis, please refer to our Program Description on sending the correct components to SBT. The lead time average for turn around is approximately 5-10 business days. Once SBT receives the core, this core has entered the remanufacturing process and cannot be returned.