Quicksilver – Aluminum Prop Nut Anode | Fits Select Mercury Propellers and Outboard Engines | 2-5/16" Diameter | 809666T

Overview

Every boater knows that saltwater is both a playground and a challenge. The Quicksilver Aluminum Prop Nut Anode (Part Number 809666T) is built for those who respect both sides of that equation. It’s one of those small but vital parts that quietly does its job, protecting your outboard or sterndrive from corrosion while you focus on what matters, smooth running, open water, and time well spent behind the wheel.

This isn’t the kind of part you notice, and that’s exactly the point. It’s protection you can count on, designed to take the punishment so your propeller, gearcase, and drivetrain don’t have to. Reliable, tested, and trusted, this anode is what stands between your investment and the relentless wear of saltwater.

Key Features

• Material: Made from high-quality aluminum for dependable corrosion protection in saltwater and brackish environments.
• Size: 2-5/16" aluminum shell built for durability and long-term performance.
• Replacement Fit: Direct replacement for 809666A02 to ensure a precise fit and proper protection.
• Compatibility: Designed for MerCruiser Bravo Three sterndrives.
• Easy Installation: Slides on easily and secures quickly,no special tools required.
• Included Component: Replacement anode only; prop nut and fastener are sold separately.
• OEM Quality: Built to Mercury Marine’s original specifications for reliability and performance.

Engine & Boat Compatibility

• Fits MerCruiser Bravo Three sterndrives (select model years)
• Ideal for fishing boats, cruisers, and runabouts
• Designed specifically for saltwater and brackish water environments where corrosion is most aggressive

Performance Benefits

The Quicksilver 809666T Aluminum Prop Nut Anode might be small, but it plays a huge role in protecting your boat’s performance. By drawing in and neutralizing corrosive electrical currents, this anode sacrifices itself to protect your propeller, shaft, and gearcase. The result is a longer lifespan for your expensive hardware and fewer surprises during maintenance.

Once installed, it works quietly in the background—whether your boat’s at the dock, stored on a trailer, or cruising full throttle through choppy saltwater. It’s durable enough to handle high-torque applications and long runs, yet designed to wear down gradually so you always know when it’s time for a replacement.

It’s the kind of reliability that seasoned boaters appreciate: a simple, effective safeguard that keeps your vessel performing smoothly and running strong year after year.

Why This Product Is a Strong Choice vs. Alternatives

• Mercury OEM quality: Designed by Mercury Marine’s Quicksilver division for perfect fit and long-term reliability.
• Reliable and easy to maintain: Simple installation and replacement—no fuss, just dependable performance.
• Cost-effective protection: A small, affordable part that prevents big repair bills caused by corrosion damage.
• Versatile fit: Specifically designed for MerCruiser Bravo Three drives, offering proven protection across different boating styles and conditions.

FAQ Section

Q1: Which Mercury engines or drives does the 809666T anode fit?

It fits MerCruiser Bravo Three sterndrives, replacing the previous anode model 809666A02.

Q2: What makes this anode different from other corrosion protectors?

This anode is an OEM-quality part designed by Mercury Marine for exact fit and maximum protection in harsh saltwater environments.

Q3: How do I know when it’s time to replace it?

Inspect the anode regularly. When it’s about halfway eroded, replace it to maintain full corrosion protection for your prop and lower unit.

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

Yes, but it’s optimized for saltwater and brackish conditions. For freshwater-only use, a magnesium anode is typically recommended.

Q5: Does it include the prop nut and fastener?

No, this kit includes the replacement anode only. The prop nut and fastener are available separately.