Do-It-Yourself Boat Winterizing Kit

Starbrite Do-It-Yourself Boat Winterizing Kit

Take the uncertainty out of winter prep with the Starbrite Winterizing Kit. Compatible with both inboard and outboard engines, this kit helps you protect your boat from freeze damage using items you likely already have: just add a garden hose, flusher, and antifreeze. Its simple design makes the process quick and approachable, no mechanic needed. Perfect for seasonal storage, the kit helps ensure smooth spring starts and long-term engine health. Reusable components add value year after year, making it a smart choice for DIY-minded boaters. Designed to work across a range of engine types and sizes, it's a reliable way to safeguard your cooling system all winter long.

Boat Winterizing Kit Includes:

• Antifreeze Jug (Holds 5 Gallons)
• Tubing
• Does not include antifreeze

For Winterizing:

• Quickly and easily adds winterizing anti-freeze to inboard and outboard engines.
• All you need is a garden hose, ear muffs or flusher attachment and Anti-Freeze.
• Winterize your boat right on the trailer.

For Descaling:

• Quickly and easily descales inboard and outboard engine cooling systems.
• Removes zebra mussels and other marine growth, keeping your engine running cool.

How to Use Starbrite's DIY Winterizing Kit

Starbrite's Marine Winterizing Kit comes with a 5 gallon tank, gate valve/cap and clear hose. You will need ear muffs or flushing attachment for your type of engine. Check marine engine manual for specific coolant capacity and plan accordingly.

• Fill 5 gallon tank with appropriate amount of desired Starbrite's Antifreeze making sure vent cap is open.
• Once tank is filled with antifreeze, tighten gate valve/cap and lay tank on side with gate valve facing down.
• Place marine engine flushing attachment over engine intakes.
• Attach clear hose to gate valve at one end and flushing attachment at other end.
• Open gate valve to start flow of antifreeze into clear hose.
• Start engine and let run at idle speed until antifreeze comes out of the exhaust/water outlet of your engine.
• Immediately shut off the engine, close gate valve on tank and remove Marine Winterizing Kit.
• When engine is ready to be put back into use, flush cooling system with fresh water to remove antifreeze.
• Dispose of antifreeze in compliance with local, state and federal laws.

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