This is a 1976 Yamaha YZ125X Engine Cylinder that has been bored 4th over to 1.00 size. It is a vintage part and has been used . The part is made in Japan and fits Yamaha bikes with the OE/OEM Part Number 1G8-11311-00-00 or the Manufacturer Part Number 1G8-11311-00-00. This part is perfect for those looking to replace their current engine cylinder or for those who are restoring a vintage bike. The cylinder has been Vapor Blasted for paint . Nice clean liner comes with the piston that was in the cylinder it's up to you if you want to use it or not . This came out of a running bike . Top 2 fins are bent as seen in the pictures . Fast Shipping !!! Free Shipping , No Returns , Thanks ronn450