Aluminum Anode Kit For Yamaha 300 - 350 HP XP Complete Kit Replaces Yamaha 6CE-45373-00, 6AW-45251-00,61N-45251-01A, Quicksilver 8m6008000, Martyr CMY300350XPKITA, Tecnoseal 21109AL. This Is A US Military Grade Aluminum Anode Kit Made To The Highest Quality. Kit Comes Complete Including Hardware. Aluminum Is For Salt And Brackish Water Use.