MerCruiser Bravo 3 Sterndrive – Prop Nut with Anode – 809666A02

MerCruiser Bravo 3 Sterndrive – Prop Nut with Anode – 809666A02 This cast aluminum anode kit (1‑3/8 in. Shaft, 1 in. Aluminum) includes the bronze prop nut and stainless steel hex bolt for attaching to the prop shaft of your Bravo 3 sterndrive. Designed for use in fresh water or salt water to protect your sterndrive from corrosion. Replacing anodes on a boat is crucial because they act as "sacrificial" metals, designed to corrode and dissolve instead of the other metal components on your boat, like the propeller and hull fittings, protecting them from galvanic corrosion which can cause significant damage if left unchecked. Fits: Bravo III drives (s/n 0M179451 and below)