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. B1003
Included Items: One 66.0mm piston Two 2598CD rings Two CW18 circlips
S257 wrist pin is not included
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.