Manufacturer
Part Number
$31.51
1 left at this price
Usually delivered within 2 days
Add To Cart
Check out with
No Hassle Returns
Live-in-stock inventory
Fitment guaranteed
The Sierra 18-6080A is a replacement aluminum sacrificial anode designed to protect MerCruiser Alpha One Gen II stern drives from galvanic corrosion, rust, and electrolysis damage. Engineered to meet or exceed OEM specifications, this anode is a direct replacement for Mercury Marine OEM part numbers 821629T1, 821629A1, and 821629Q1.
Sacrificial anodes are a critical part of any marine maintenance routine — they corrode in place of your expensive drivetrain components, extending the life of your stern drive. Regular replacement helps prevent costly corrosion damage to shafts, propellers, and drive housings.
Why Choose Aluminum?
Aluminum anodes offer superior versatility compared to zinc. The specially formulated aluminum alloy outperforms zinc in saltwater environments and provides reliable protection in brackish and tidal waters as well. If your vessel operates across multiple water environments, aluminum is the recommended all-around choice.
Key Features:
Keep your stern drive protected season after season with routine anode replacement using Sierra marine-grade components.
I did a search with the part number and decided to give your company a try.
Bill R
Great and fast hopefully shipping is fast as well
Ryan H
great so far.
Alan V
Great experience.
Larry C
My shopping experience has been great...it was very easy to find the part I was looking for.
Courtney Z
Server errors during checkout. I hope I wasn't charged more than once
Matthew C
Because they had what I wanted with both cost and shipping price that I was willing to pay for.
Gary S
Great product at a very reasonable price. Driver could have helped lower package.
Jose
so far so good
Eric Gordon
Add your review
Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy
