Camco 65501 DIY Boat Winterizer - Easy to Use Gravity Flow System for Inboard/Outboard Engines
Camco 65501 DIY Boat Winterizer - Easy to Use Gravity Flow System for Inboard/Outboard Engines
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Camco 65501 DIY Boat Winterizer - Easy to Use Gravity Flow System for Inboard/Outboard Engines

Key item features

  • Effortless Winterization: Winterizes inboard/outboard engines directly on the trailer, offering simplicity and convenience for seasonal preparation.
  • Gravity System: Utilizes a gravity flow system for efficient and quick engine servicing.
  • Required Components: Needs only antifreeze and a flusher (not included) to operate effectively.
  • Comprehensive Kit: Includes an antifreeze tank with an on/off valve, a ball valve, and a clear hose.
  • User-Friendly Instructions: Comes with simple, step-by-step instructions, making it accessible for all users.
  • Engine Protection: Flushes and prepares the engine for winter storage, helping to maintain its condition.
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Sold and shipped by Spreetail
4.3236510771039125 stars out of 5, based on 44239 seller reviews(4.3)
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Customer ratings & reviews

4.1 out of 5 stars
stars19 ratings14 reviews
How item rating is calculated
  1. 5 stars53% (10)
  2. 4 stars26% (5)
  3. 3 stars5% (1)
  4. 2 stars5% (1)
  5. 1 star11% (2)

Reviews summary

Pros

  • : Simple setup and operation are characteristic of this product.

Cons

  • : Takes time to present antifreeze in the motor.
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Showing 1-3 of 14 reviews

Oct 27, 2025
Alex
Sold and shipped byMarineEngineParts
5 out of 5 stars review

Verified Purchase

Simple winterizer tool

Surprised that it actually worked as well as it did. Very simply to set up. I did have to rotate one of the valve switches which required removing the screw but that took maybe 3 seconds.

Helpful?4AUDZXB1VH6O29764665
Nov 9, 2014
amad1972
5 out of 5 stars review

Saved me some money!

For the past 3 years, I have taken my boat to get it winterized at the boat shop for almost $200. I decided to get this kit and do it myself this year. For the price of this, plus some antifreeze and fogging oil, I was able to do it for less than $70. Next year, I can do it for just about $35. Definitely worth it. It really only took me about an hour to winterize it.

Helpful?4AUDZXB1VH6O29764665
Oct 23, 2016
Jimmy
5 out of 5 stars review

Verified Purchase

Works

First time ever winterizing a boat, but, following the directions, it flowed smoothly.

Helpful?4AUDZXB1VH6O29764665