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Product Details

The Do-it-Yourself boat engine winterizing kit from Camco lets you flush and prepare your outboard and sterndrive (I/O) engines for winter storage with just 5 gallons of antifreeze and your flusher. Your engine can be winterized right up on the trailer. Easy and complete instructions included.

This is a great little system to allow the normal guy to put away his engine properly for the winter.

Reviews for Do-It-Yourself Winterizer Flushing Kit

10 of 16 Reviews

October 11, 2017

Excellent "Tool" CAREFUL! Verify antifreeze is in the block
By Shoreline All-Season Services from Centreville, MD

This is a great tool but I recommend you have the engine up to operating temperature so the thermostat is open and coolant is circulating. If it is not, you may not be removing the water in the block and freeze damage may occur. I used this system on a customer's Mercruiser 357 Magnum. When I removed the blue plastic petcocks on both sides of the lower block, only water came out. I'm glad I checked. Double check your work to be sure.

Bottom Line Yes, I would recommend to a friend

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November 3, 2015

Worked as described. Nice product
By FRANKA from LYNNFIELD, MA

Verified Purchase

Makes winterizing easy. Found that I was better off removing thermostat. Water temperature did not go above 140 degrees and it didn't open.

Bottom Line Yes, I would recommend to a friend

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November 17, 2014

Great for engines and water systems
By MICHAEL K from GRAFTON, MA

Verified Purchase

This system contains the tank, hoses and shut off valve necessary to flush antifreeze into an engine, head, or raw water system, minimizing spillage and waste.

Bottom Line Yes, I would recommend to a friend

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October 26, 2012

The Flow is weak
By amedico from Mass

Out flow is slow

Bottom Line Yes, I would recommend to a friend

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November 14, 2011

Highly Recommended
By tomdiver from Hudson Valley, NY

Be sure to use Non-toxic biodegradable Ban Frost 2000, or similiar RV non-toxic antifreeze. What goes through the engine ends up on the ground.


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October 29, 2011

Almost Idiot Proof
By Living the Dream from Draper, Utah

I have been using this product for nearly 10 years and have never had a problem. I live in northern Utah and store my boat outside and I have never had any freezing problems with my outdrive or my Engine. I use this product on my 24' Sea Ray Sorento with a Alpha One Outdrive.

Bottom Line Yes, I would recommend to a friend

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September 23, 2011

NOT for raw water cooled IOs.....
By Luigi from Long Island NY

I would not recommend this for a raw water cooled sterndrive (I/O) because of the fact that if the thermostat does not open all the way, the engine block/heads will still have raw water or mostly water and not that much antifreeze and you would risk freeze damage because all the raw water did not exit the block/heads. The other issue is it can cause wear to the impeller esp on engines with the impeller mounted on the engine (Volvos, Bravos) because of the distance the AF has to be sucked up to the engine. This can work on outboard and on engines with closed cooling but it is too risky for raw water cooled inboards or IOs. Do yourself a favor and do not take short cuts, drain everything manually as noted in the engine manual, if you want to use AF you can back fill the engine and manifolds through the hoses. Make sure to probe the drain holes because rust flakes can prevent draining. I tried one of these years ago, then checked the block drains, what came out, was not strong enough to not freeze if the temps went down to zero...

Bottom Line No, I would not recommend to a friend

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November 8, 2009

works with little tweaking
By larson 5.7 from tennessee

i used on a 5.7 mercruiser and put the whole 5 gallons the unit held in and just wasnt positive it was pure antifreeze coming out of the exhaust. so i cut the top out of the jug while it was in the using position and i poured a total of 7 gallons through my motor. i just kept adding the antifreeze as it was running out, worked great and gave me piece of mind. if the unit would hold 6 or 7 gallons it would be much better design, and you wouldnt have to worry about it running out before all the water was out of engine.

Bottom Line Yes, I would recommend to a friend

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November 6, 2009

excellent product
By Firebug901 from Manchester,ky

Worked just as described. Very easy to use.

Bottom Line Yes, I would recommend to a friend

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October 29, 2009

Great idea poor components.
By Bigdog from Rochester, NY

Concept is great. I have found it frustrating when I use and may change out low quality components. Should work perfectly without user upgrades. Valves are junk. Threads are weak.

Bottom Line No, I would not recommend to a friend

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