60HP DF60 2010 & LATER (NOT 60AV MODELS). 40HP DF40 1999 & LATER. 50HP DF50 1999 & LATER (NOT 50AV MODELS). 11 5/8 X 11 PITCH. STAINLESS STEEL. 13 SPLINES. IF YOU ARE NOT SURE THIS WILL FIT YOUR ENGINE ?.
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