Camco Boat Winterizing Kit Gravity-Flow Engine Flush System 5-Gallon Tank with Reinforced 5/8" Hose and Brass Fittings

Camco's DIY Boat Winterizing Kit (65501) is a gravity-flow engine flush system that delivers antifreeze to inboard and outboard engines for winter storage using a reinforced 5/8" hose and brass fittings. Camco’s winterizing kit is a simple, portable solution designed to flush and protect marine engines before winter lay-up. The system uses gravity to move antifreeze from the included tank through a clear, reinforced hose to the engine’s water passages, reducing the need for complex adapters or powered pumps. It arrives with the core components you need to connect, control, and direct antifreeze flow, saving time while helping prevent freeze damage during storage.

How does this kit move antifreeze into my engine?

The kit relies on gravity flow from the antifreeze tank through a ball valve and winterizing tee to direct fluid into the engine’s cooling passages. A clear 5/8" reinforced hose and brass fittings maintain steady flow and resist kinking so antifreeze reaches all necessary points.

• 5-gallon antifreeze capacity (requires antifreeze supply, flusher not included)
• On/off valve on tank for controlled discharge
• Ball valve and winterizing tee for routing and isolation
• Reinforced clear hose for visual flow monitoring

Will it work with both inboard and outboard engines?

Yes — the kit is intended for universal use on both inboard and outboard marine engines, making it a versatile tool for boat owners with mixed fleets. Connections are standard and the gravity feed design adapts to common winterizing points on most engines.

• Compatible with typical engine cooling ports and flusher connections
• Brass fittings provide corrosion resistance at connection points
• Clear hose lets you confirm antifreeze flow and air removal

What parts are included and how do they improve the job?

The kit bundles an antifreeze tank with an integrated on/off valve, a ball valve, a winterizing tee and a reinforced, clear 5/8" hose with brass fittings. Each component is chosen to streamline winterizing so you can flush and fill engine passages more efficiently and with less fuss.

• Antifreeze tank with on/off valve for neat, controlled draining
• Ball valve and winterizing tee for precise routing and shutoff
• High-flow 5/8" reinforced hose to reduce kinks and improve delivery
• Brass fittings for reliable, leak-resistant connections

How does this kit save time and money compared to other methods?

Because it uses gravity and a ready-to-connect hose assembly, the kit avoids the need for electric pumps, multiple specialty adapters, or repeated trips to a service shop. That reduces labor time and expense while giving you a reusable system for several seasons.

• Quick setup with included valves and tee minimizes prep time
• Reusable tank and hose lower annual winterizing costs
• Clear hose reduces guesswork and prevents overuse of antifreeze

Who is this for This Camco DIY Boat Winterizing Kit is aimed at recreational boat owners, marina technicians, and DIY maintenance enthusiasts who want a straightforward, reusable way to flush and winterize both inboard and outboard engines. If you prefer hands-on maintenance, want to avoid hiring a pro every season, or need a portable kit that fits in a locker or service cart, this gravity-flow system is a practical choice.

FAQ

Q: Do I need a pump to use this Camco gravity kit?

A: No, the system uses gravity flow; you only need a raised tank position and sufficient antifreeze supply.

Q: Is the hose compatible with standard engine flusher fittings?

A: Yes, the reinforced 5/8" hose with brass fittings fits common flusher and cooling ports for most inboard and outboard engines.