Sierra Prop Nut Kit Evinrude Johnson 18-3717 by Sierra International $9.55 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Sierra Prop Nut Kit #47-3717 Fits: Evinrude Johnson. Contains: Prop Nut 3707 (1), Cotter Pin 3743 (1), Prop Spacer 4232 (1). OEM# 175268