SUZUKI ENGINE CYLINDER FOR 1981 RM 250X MODELS. OEM PART NUMBER 11210-14202. FRESHLY BORED. INCLUDED ARE AN OVERSIZED WISECO PISTON KIT (474P8) & OEM HEAD AND EXHAUST GASKETS. I MAY ALSO HAVE A BASE GASKET IF THAT IS REQUIRED TO SEAL THE DEAL, BUT WILL HAVE TO LOOK. LONG AGO DISCONTINUED, THE BORE HAS BEEN COSMOLINED FOR PROTECTION. SIMPLY WASH OUT THE COSMOLINE WITH SOLVENT/DEGREASER, AND ASSEMBLE. THERE SHOULD BE NO DISSAPOINTMENTS!! WE GENERALLY SHIP PURCHASED ITEMS ON MONDAY, AND THURSDAY. THANKS FOR LOOKING, AND "HAPPY MOTORING"!