This will fit all YAMAHA 225-250 Hp V6 4-Stroke 6 Cyl. Complete Power Head Gasket Kit WSM 500-365 OEM# 6P2-W0001-01 , 6P2-W0001-01-00 All kits include enough gaskets for one motor, order one kit for one motor. At Pwc Engine, Inc. we offer top name brands including WSM, Pro-X, Wiseco pistons, OEM RIK Japan rings, Nachi, Koyo, & KBC Engine bearings..