Hey guys, I sold my thumper and I have 2 complete gasket and ring kits for the yz 426. The kits include all three rings for the piston and the gaskets all the way around the motor, I think there are five or six gaskets. These are all original yamaha parts and brand new. I think they will fit any 426 motor. I would like to sell or trade them for parts.(like bars and/or chain)I now ride a 2002 yz 250. I will sell kits together or seperately.