This clutch drum kit is OEM quality parts from HISUN factory,it including parts NO 1,3,15,18 in the parts breakdown. parts no is 21210-004-0000 21220-004-0000 21241-004-0000 91102-004-0000. fit HISUN HS500 HS700 ,MASSIMO MOTORS MSU500 MSU700 ,BENNCHE COWBOY500 700 ,COLEMAN OUTFITTER UT500  UT700