Can Am Piston 370 400 406 cc, 84.5 and 85.0 mm Bore Size, Wiseco/Wossner Piston for Vintage Rotax Engine Dirt Bikes
MADE IN THE U.S.A.
Part # CAN-PIS-WISE-84.5 (2nd over bore) - Wiseco
Part # CAN-PIS-WISE-85.0 (4th over bore) - Wossner
We also have the needle bearing, if you need.