Aluminum Anode Anti-Vent Plate - 8M0137814

Aluminum Anode Anti-Vent Plate - 8M0137814 This anode is designed to protect the lower unit of your Mercury outboard engine from corrosion caused by exposure to saltwater and other harsh marine environments. Specifically, this anode helps prevent damage to the anti-ventilation plate and other critical engine components, prolonging their life and ensuring proper performance. 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: 175-225HP 3.4L V6 4-Stroke (SN 2B529482 & Above) 175HP Pro XS 3.4L V6 4-Stroke (SN 2B529482 & Above) 200-300HP Pro XS 4.6L V8 4-Stroke (SN 2B529485 & Above) 250-300HP CMS 4.6L V8 4-Stroke (SN 2B529482 & Above) 250-300HP AMS 4.6L V8 Verado 4-Stroke (SN 2B529482 & Above) 250R 4.6L V8 4-Stroke (SN E1080500 & Above) 300R 4.6L V8 4-Stroke (SN E1080500 & Above) 500R 4.6L V8 4-Stroke (SN 1E099432 & Above)