Mercury – Aluminum Anode Kit | Corrosion Protection System | 8M0116590

Overview

If you spend enough time on the water, you learn to respect what you can’t see. Beneath the shine of a freshly flushed Verado, there’s a constant battle happening between metal and the elements. Saltwater, freshwater, brackish bays—they all work their way into every crevice. That’s why having the right anodes in place isn’t just maintenance; it’s peace of mind. The Mercury 8M0116590 Aluminum Anode Kit gives you that steady confidence that your engine is protected every time you leave the dock. No drama, no surprises—just a motor that keeps doing its job season after season.

Key Features

• Complete aluminum anode kit for Mercury in-line 6-cylinder 350–400 horsepower Verado outboards.
• Built to protect critical engine components from galvanic corrosion in both fresh and saltwater.
• Includes all transom and gearcase anodes required for standard replacement.
• Designed for quick, straightforward installation using basic tools.
• Manufactured to Mercury Marine’s original equipment standards.
• Durable aluminum alloy provides long-lasting and reliable sacrificial protection.

Engine & Boat Compatibility

• Fits Mercury L6 Verado 350, 375, and 400 horsepower engines.
• Compatible with serial numbers 1B716557 through 3B342962.
• Ideal for offshore fishing boats, coastal cruisers, performance center consoles, and large pontoons rigged with Verado power.
• Suitable for boats operating in freshwater, saltwater, or mixed conditions.

Performance & Practical Benefits

Corrosion works slowly, but it never stops. The right anodes make sure it attacks the sacrificial metal—not the expensive parts of your engine. This kit covers the critical surfaces of both the transom bracket and the gearcase, keeping everything tight, clean, and structurally sound.

You’ll notice the difference during routine inspections: smooth surfaces, steady hardware, and no unexpected pitting where it shouldn’t be. Because these anodes are designed specifically for the alloy composition of Mercury L6 Verado engines, they provide reliable, even protection—something generic aftermarket pieces often fail to do. Installation is simple, and once everything is bolted in place, you can get back to running confidently, knowing the system is working exactly as intended.

Why Buy OEM

When it comes to corrosion protection, guessing is never worth the risk. Mercury’s OEM anodes are engineered for your exact Verado model, using alloys that react properly and predictably in real marine environments. Aftermarket versions may look similar but often corrode unevenly or too slowly, leaving key parts at risk.

Choosing Mercury OEM means:

• Correct metallurgy for proper sacrificial corrosion
• Long-term reliability
• A perfect fit every time
• Fewer surprises during haul-outs or driveway inspections

It’s the practical, seasoned-boater choice—especially when you’re protecting an investment as significant as a Verado.

FAQ

Q1: Which Mercury engines does the 8M0116590 Anode Kit fit?

It fits Mercury in-line 6-cylinder 350–400 horsepower Verado outboards with serial numbers 1B716557 through 3B342962.

Q2: What makes this different from aftermarket anodes?

OEM anodes match Mercury’s specific alloy requirements, ensuring consistent and complete corrosion protection.

Q3: How do I know if this is the correct kit for my setup?

Check your engine serial number and compare it with the compatibility range. Your owner’s manual will confirm the correct part number.

Q4: Can this kit be used in both saltwater and freshwater?

Yes, the aluminum alloy is designed for versatile performance in all environments.

Q5: Is installation straightforward?

Very. Most boat owners can remove and replace the anodes with basic hand tools.