PISTON KIT LTZ400 KFX400 92.00, WISECO 4713M09200 KAWASAKI

Part no 56-W4713_200.WI (phoenixmotos.com)
Wiseco 92.00mm piston kit Application KFX400 03-06
Suzuki LTZ400 00-09

(Wiseco part no 4713M09200)