Sea-Dog Inboard Motor Flush [521550-1]

Marsoni

M251S

$21.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Sea-Dog Inboard Motor Flush [521550-1]Inboard Motor Flush Molded Rubber Aluminum Inboard Motor Flush quickly flushes away salt, sand, minerals, and contaminates from your lower unit cooling system extending the engines service life. Easy to use by fitting the rubber cup over the water intake, connecting a garden hose, and extending the aluminum leg to seal the cup to the hull. Fresh water flushes the cooling system, no tools required. Great for winterizing, tune ups, and other maintenance

Easy Shipping

Quick Dispatch:

Your Sea-Dog Inboard Motor Flush [521550-1] orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your Sea-Dog Inboard Motor Flush [521550-1] ships.

Need Help?
Questions about Sea-Dog Inboard Motor Flush [521550-1], sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Sea-Dog Inboard Motor Flush [521550-1] in your area.

Get Shipping Estimates

Country Zip/Postal Code

Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

If it's like the previous line I purchased, it's good. Don't leave it in a hot garage, because the line will sometimes stick together when you get around to using it! NOTE: Again, I received this product YESTERDAY, and Amazon is sending me a survey today!! What AMAZON brain surgeon thinks that this is a good idea????

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 10, 2026