CURTIS 933/E12 REBUILT ITEM, 6 MONTHS WARRANTY, UPGRADABLE UP TO 36 MONTH. This part is also listed under Part number: 933000000000000. ALL REMANUFACTURED AND REBUILT ITEMS ARE SUBJECT TO A CORE CHARGE. CORE CHARGE IS REFUNDABLE. REFUND AMOUNT WILL BE DETERMINED BY  THE STATUS OF THE CORE RETURNED.