Cheap And Discounts Outboard Motor 66T-11631-01-93 STD Piston Set & 66T-11603-00 Ring for Yamaha 40HP E40MH 40X / for Parsun Hidea Makara HDX Wholesale. Buy Directly From Merchant SouthMarine Engine Parts Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.