B & S Anodes Anode Kits

B & S Anodes Anode Kits: Complete Corrosion Protection, Made in the USA

When it comes to defending your boat's underwater running gear from galvanic corrosion, few names carry the credibility of B & S Anodes. Their line of anode kits takes the guesswork out of corrosion protection by bundling every piece you need for a complete service into one convenient package — no hunting down individual parts, no missed components.

Why Anode Kits Matter for Saltwater Boaters

Galvanic corrosion is one of the most destructive forces working against your boat below the waterline. Sacrificial anodes corrode preferentially, absorbing electrochemical attack that would otherwise eat away at propellers, shafts, trim tabs, and other critical metals. Replacing worn anodes as a complete kit ensures every vulnerable point is addressed simultaneously, which is especially important during annual haul-outs or engine service intervals.

What Sets B & S Anodes Kits Apart

B & S Anodes has been in the anode manufacturing business since the 1960s, when the founders of Bossler & Sweezey began hand-pouring zinc anodes during the slow winter season. That hands-on heritage is baked directly into every kit they produce today. All B & S zinc anodes are crafted to meet Military Specification MIL-A-18001K — the same demanding standard used by the U.S. military — and every single anode is hand-poured at their Long Island, USA facility.

That hand-pouring process matters more than it might seem. Unlike die-cast anodes, hand-poured zinc achieves a higher degree of porosity, which exposes greater surface area to the surrounding water. The result is more even, efficient erosion — meaning the anode is actively doing its job rather than developing a protective crust that inhibits sacrificial action.

Anode Kit Coverage for Mercury & Mercruiser Drives

B & S Anodes kits are purpose-built for the most popular sterndrive and outboard platforms on the water. Their catalog includes complete zinc kits for:

• Alpha 1 Gen II sterndrives (BSMALPHAGEN2KITZ)
• Bravo I sterndrives (BSMBRAVO1KITZ)
• Bravo II & III sterndrives (BSMBRAVO23KITZ)
• Bravo III 2004 and up (BSMBRAV3PLUSKITZ)
• Trim Tab Kit with anodes & hardware (BSMBTKIT) — designed for Bennett trim tabs, mounting at the lower hinge of the trim cylinder and sold as a pair covering two tabs

Each kit is designed so that everything needed to protect critical Mercury and Mercruiser parts is included in a single package. Hardware such as stainless steel fasteners is typically supplied alongside the zinc anodes themselves, so installation is straightforward even for do-it-yourself boaters.

The Right Choice for Salt and Brackish Water

B & S zinc anode kits are specifically engineered for salt and brackish water environments, where zinc consistently outperforms aluminum for sacrificial corrosion protection. If your boat spends its time in coastal bays, tidal rivers, or open ocean, a B & S zinc kit delivers reliable, season-long protection for your most expensive underwater components.

Browse the full selection of anode kits or explore the complete B & S Anodes lineup to find individual anodes, hull plates, shaft collars, and more for your vessel.