This is for a excellent older OS Max BX-1 108 R/C glow model airplane engine. Ring piston. Low run time with just a hint of exhaust residue in port and bearings are excellent with no rust. 1 little mark on side of head. Compression outstanding. Includes mount, Pitts muffler and screws, OS 7D carb, glow plug and needle. Turns smooth and excellent compression. $10.00 shipping U.S. I combine auctions to save you money on shipping. I am listing a bunch of engines, parts engines, project engines, new and used model airplane and boat parts. Shipping rates keep going up and I can't stop them but I will still try hard to combine shipping and give you the best shipping rates I can and refund you over payment on shipping rates if you buy more then 1 item.