Cheap And Discounts Boat Motor 670-45997-02/10/01 Propeller Spacer, 663-45987-02/01, 92990-16200 Washer, 90171-16011 Nut for Yamaha 40HP 50HP 55HP Wholesale. Buy Directly From Merchant SouthMarine Outboard Motor Parts store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.