This Arctic Cat 440 (431cc) fan-cooled cylinder with the casting number 8842 is reconditioned with a lifetime plating warranty by the plating company. It is for the 10mm mounting studs with dowels on two between the cylinder and head, and fits many late '90's and early '00's fan-cooled sleds. There is no core exchange required. Shipping is only in the lower 48; unless you are purchasing through eBay's Global Shipping Program. If you are in Alaska please contact me before purchasing to check on shipping options. Thanks, -Paul