Swap out that pitted chunk of metal on your Yamaha lower unit for Sierra's 6035 Anode (replaces Yamaha # 6J9-45371-01-00) and give corrosion a target that isn't your gear-case. Cast from Sierra's premium aluminum alloy, this anode protects in salt, brackish, and even fresh water-ideal for owners who trailer between lakes, rivers, and the coast.. Why Sierra's 6035 is a smarter shield. Mil-Spec aluminum alloy offers 20 % longer service life than traditional zinc while remaining effective in fresh water.. Direct-fit casting hugs the skeg boss on 50-130 hp Yamaha outboards-no filing or shimming.. Curved hydrodynamic profile preserves water flow to the prop, keeping hole-shot crisp.. Raised imprint & Sierra part number make future checks quick-no guessing which anode you installed last season.. Install is as simple as two #10 stainless screws: scrape the mating surface, torque to spec, and you're done. The anode starts sacrificing itself the minute you hit the water, leaving your paint, sea