PISTON KIT 76-80 YZ80 49.00, WISECO 457M04900 YAMAHA MX

Part No. 56-W457+000_WI (oro2u.com)
YAMAHA YZ80 1976-1980,
Overview of Wiseco Piston Assembly – 457M04900 Wiseco forged pistons are superior in strength and design We carry the full line of Wiseco forged pistons, big bore kits and related items Top-End bearing available-part no. B1042

Our pistons, rings and kits are sold by application and bore size. Please note that STANDARD and OVERSIZES are not indicated. To get the correct part, you must know the standard bore size to make sure you are ordering either the standard or correct amount of oversize that you need. If you have any questions, please call Technical Service.