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Seaworks Boat Winterizer Gravity Motor Cleaner with Flusher Kit - DIY Winter Preparation Solution for Marine Engines
Boat Winterizer flow system flushes, prepares and protects your boat engine for winter storage. Compatible for inboard and outboard engines.
Kit includes: antifreeze tank with on/off valve, T-Connector, shutoff valve, braided hose with fittings, flusher.
A Simple Solution for Winter Preparation
This kit requires only antifreeze (not included) and the included flusher to operate. For boat winterization, use 5 gallons of antifreeze with a burst protection of at least -50°F.
Complete Kit Included
Fittings designed for uninterrupted antifreeze flow to your engines, cleans impurities and enhances engine performance. Use at regular intervals to improve engine life expectancy.
Seaworks: Quality Boating Solutions
Seaworks manufactures a large range of boating solutions, such as salt removers, engine flushers, winterizing kits and more. Perfect for the DIY enthusiast or professional.
B. Gibson
Reviewed in the United States on March 6, 2025
Easy to use and works great! Will have saved purchase price the first time not going to a marina.
William Brux jr
Reviewed in the United States on February 8, 2025
Used it on my boat and 5th wheel and worked perfect for both, however i did buy a electricpump for use on both. my water intake on my boat is a through hull and the 5th wheel needs pressure to get the antifreeze through. No need to pay a shop now
Anthony castruita
Reviewed in the United States on January 8, 2025
Works great. Only issue I had is that the hose is stiff from packaging. So I left it out in the sun the soften up so it wouldn’t pull off the muff when I was winterizing my boat. And don’t forget to cut a hole so the breather works.
Customer
Reviewed in the United States on January 16, 2025
Very good way to get antifreeze into outboard engine
Zach
Reviewed in the United States on December 21, 2024
Weak plastic parts. Teflon taped the blue hosed adapter but the female inlet thread on jug would not hold hand tight pressure. Threads failed and antifreeze leaks all over the place. Hose it to brittle and kinks when bending it. Not pliable at all.. could not use and I’m trying to return
Christopher
Reviewed in the United States on November 22, 2024
A little flimsy at the connections but it did the job!
Brian Burke
Reviewed in the United States on October 27, 2024
Product was delivered just fine. Was a little disappointed with the hose from the tank to the boat. The hose didn't fit correctly onto the item so I used another hose to complete the setup. The air release didn't work as it was sealed, not sure if that was designed like that or not. I used a screwdriver to provide an opening without damaging it. Over all, the roduct did work as stated.
Harley rider
Reviewed in Canada on October 15, 2024
The first photo shows what’s should have been shippedThe next photo shows what was received.It’s missing the 3 way valve , the system will not work .It needs all the parts to connect .
Steve
Reviewed in Canada on October 11, 2024
There is a leak on the cap that screws into the jug. It's just not that good of a fit. The type of fit if you try to twist on tighter, it will spin past the thread and you are starting over again. I had to make sure to keep it standing upright until I am ready to open up the valve and let the antifreeze to flow. Outside of that, it does what is advertised. I am still happy to have it so I can winterize my boat myself.
Laura
Reviewed in the United States on December 19, 2022
The overall system works well except for the attached hose. The hose that comes with the unit is very stiff (even after dipping in warm water to try and loosen it up) and has poor connectors. I tried using the attached hose and it didn't seal all the way when connecting the threads but after replacing it with another hose the system worked perfectly. Would pay more for a higher quality hose that is actually usable.
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