Quicksilver – Aluminum Prop Nut Anode | Fits Select Mercury Propellers and Outboard Engines | 2-1/2" Diameter | 809670T

Overview

Every seasoned boater knows that protection is just as important as power. The Quicksilver Aluminum Prop Nut Anode (Part Number 809670T) is that quiet defender working beneath the surface—keeping your Mercury or MerCruiser drivetrain safe from corrosion so you can focus on the moments that matter. Whether you’re spending the day fishing, exploring, or cruising open water, this small part plays a big role in preserving performance and peace of mind.

It’s not something you notice when it’s working—and that’s the beauty of it. Designed to take on the harsh realities of saltwater, this anode sacrifices itself to save your propeller and lower unit from corrosion. For boaters who care about the long game, it’s one of those simple, reliable components that keeps everything running smoothly season after season.

Key Features

• Material: High-quality aluminum for durable, dependable corrosion protection in saltwater and brackish conditions.
• Size: 2-1/2" aluminum anode shell built for consistent performance and longevity.
• Replacement Fit: Direct replacement for 809670A1, ensuring precise fit and balanced protection.
• Compatibility: Fits MerCruiser Bravo Two, TR, and MC-III sterndrives.
• Easy Installation: Quick and straightforward—slides into place and secures without special tools.
• Included Component: Replacement anode only; prop nut and anode fastener sold separately.
• OEM Quality: Engineered and tested by Mercury Marine to meet original factory standards for performance and durability.

Engine & Boat Compatibility

• Fits MerCruiser Bravo Two sterndrives
• Fits MerCruiser TR and MC-III sterndrives
• Ideal for fishing boats, runabouts, cruisers, and workboats
• Designed for boats operating in saltwater or brackish water where corrosion protection is essential

Performance Benefits

The Quicksilver 809670T Aluminum Prop Nut Anode is one of those parts you’ll appreciate most when you don’t have to think about it. Its purpose is simple—protect your outboard or sterndrive from the damaging effects of corrosion caused by electrical currents in the water. This aluminum anode takes on that wear intentionally, corroding gradually so that the rest of your system doesn’t.

Once installed, it quietly works around the clock—on the water, at the dock, or even during off-season storage. The high-grade aluminum construction ensures reliable performance in harsh saltwater, providing a sturdy barrier against pitting, rust, and metal deterioration. Over time, you’ll notice fewer maintenance issues and longer-lasting components—proof that it’s doing its job right.

When you want confidence in your setup and smooth, worry-free operation, this anode delivers. It’s the silent protector that keeps your investment strong and your boat ready for the next run.

Why This Product Is a Strong Choice vs. Alternatives

• Mercury OEM quality: Built to exact Mercury Marine standards for fit, balance, and effectiveness.
• Reliable and easy to maintain: Simple to install, inspect, and replace—no hassle, no downtime.
• Cost-effective protection: A small investment that saves you from major corrosion-related damage and repair costs.
• Versatile fit: Works seamlessly across multiple MerCruiser sterndrive models for consistent protection in varied conditions.

FAQ Section

Q1: Which Mercury engines or drives does the 809670T anode fit?

It fits MerCruiser Bravo Two, TR, and MC-III sterndrives, replacing the earlier 809670A1 model.

Q2: What makes this anode different from generic options?

Unlike aftermarket versions, this Quicksilver OEM part is engineered by Mercury Marine for precise fit, balance, and superior corrosion control.

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

Inspect your anode regularly—if it’s about 50% worn or eroded, replace it to ensure continued protection for your propeller and drivetrain.

Q4: Can this be used in freshwater as well as saltwater?

Yes, though it’s specifically optimized for saltwater and brackish conditions. For freshwater-only use, magnesium anodes are recommended.

Q5: Does this anode come with the prop nut or fastener?

No, the 809670T includes the replacement anode only. The prop nut and fastener are available separately.