Vintage oversize John Deere hit miss engine piston and rings in excellent condition. I measured this piston and it is. If your John Deere has a pitted or worn out cylinder, you can have the cylinder bored and install this piston. There is no wrist pin or locking bolts. A very rare item to put in your engine or display on your shelf. Please see my other auctions for more hit & miss parts and collectibles.