Purchasing a high-quality product is the right option when you want to save time and money. With this product, rest assured it will give you satisfaction and guarantee long-lasting use. The Marine Anodes or Boat Anodes are an essential part of the boat maintenance cycle as they protect underwater metals from galvanic corrosion. It is also known as sacrificial anodes. The boat anodes generally come in three metals - magnesium, aluminum, and zinc. Key Features: It is for use on the Transom bracket Durable and long-lasting It is well-designed with marine-grade Zinc material Specifications: SKU: 18-6115 UPC: 808282145132 Weight: 1.55 LBS Brand: Sierra Marine Anode Material: Zinc Anode Attachment: Bolt-on Part Type: Marine Anodes CMP: CM433580 GLM: 12739 Tecnoseal: 01143 Product fitment brand: Johnson and Evinrude 18-6115 Zinc ANODE TRANSOM BRACKET Replaces: 433580 47-6115 5007089 GLM12739 808282145132 Sierra Marine Anode is equivalent to parts: 5010190 Evinrude Johnson OMC BRP 5007089 Evinrude Johnson OMC BRP Replaces: 433580. For transom bracket