PISTON KIT 02-25 YZ250 66.40, WISECO 808M06640 YAMAHA, Racers Choice, 250cc 1-Ring

Fantic
XX 250 2022-2023

Yamaha
YZ 250 1999-2025
YZ 250 X 2016-2025

Overview of Wiseco GP-Style Piston Assembly - 808M06640 Designed to withstand the demands of the Grand Prix circuit Thicker domes than the standard Pro-Lite, pinned on centerline, no intake window No engine modification required

Electra coated - single ring Top-End bearing available-part no. B1003
Included Items: One 66.4mm piston One 2614CS ring Two CW18 circlips One S508 wrist pin

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.
Cross reference numbers ONLY. [ 1P8-11631-00-A0 / 1P8-11631-00-B0 / 1P8-11631-00-C0 / 1P8