Mercury/Mercruiser Anode Kits

Zinc anodes should be use for saltwater applications. Aluminum anodes should be used for saltwater or brackish water applications. Magnesium anodes should be used for freshwater applications. Sierra Verado 4 Anode Kits |186156M | Magnesium: Verado 4 Cylinder, all models.( Z0-0436000) Sierra Verado 6 Anode Kits | 186157A | Aluminum: Verado 6 Cylinder, all models. Sierra Verado 6 Anode Kits | 186157