Camco DIY Boat Winterizer 65501 - Gravity-Flow Antifreeze Flush Kit for Inboard and Outboard Engines

The Camco DIY Boat Winterizer (65501) lets you winterize your inboard or outboard engine right from the trailer, without a trip to the shop. It is a gravity-fed flush system: fill the included tank with five gallons of antifreeze, connect your own flusher, and the engine's water pump draws the antifreeze through the system to protect internal components from freeze damage and corrosion during off-season storage.

The kit uses a high-flow 5/8 inch hose fitted with brass connections to improve antifreeze flow into the engine, and the hose is reinforced and clear so you can monitor flow and resist kinking during setup. No tools or extra equipment are required beyond antifreeze and a flusher. The tank, winterizing tee, and hose assembly are reusable season after season, making this a budget-friendly, one-person alternative to a professional winterizing service call.

This kit is designed for inboard and outboard engines. For engines with a front mounted raw water pump system, such as Volvo and others, Camco's Flush Adapter is required and sold separately.

Specifications

• Brand: Camco
• Manufacturer Part Number: 65501
• Product Category: Boat Winterizing Kits
• Compatibility: Inboard and outboard engines
• System Type: Gravity-flow antifreeze flush system
• Antifreeze Capacity: 5 gallons (antifreeze not included)
• Hose Size: 5/8 inch
• Hose Type: Reinforced, clear, kink-resistant hose
• Fitting Material: Brass
• Core Material: Brass
• Kit Includes: Antifreeze tank with on/off valve, winterizing tee, reinforced clear hose with fittings, instructions
• Number of Items: 1
• Weight: 3.95 pounds
• UPC: 014717655019
• Compatible Accessory: Flush Adapter (sold separately) for front mounted raw water pump systems such as Volvo

Fitment

• Inboard engines
• Outboard engines

Replaces (OEM)

• CMC65501

Frequently Asked Questions

What is the Camco DIY Boat Winterizer 65501 used for? It is a gravity-flow antifreeze flush system that winterizes an inboard or outboard boat engine from the trailer, protecting the engine from freeze damage and corrosion during off-season storage.

Does the Camco 65501 work with both inboard and outboard engines? Yes, the Camco DIY Boat Winterizer is compatible with inboard and outboard engines.

How much antifreeze does the Camco 65501 winterizer kit require? The kit is designed to use 5 gallons of antifreeze, which is not included and must be supplied by the boat owner.

What is included in the Camco DIY Boat Winterizer kit? The 65501 kit includes an antifreeze tank with an on/off valve, a winterizing tee, a reinforced clear hose with brass fittings, and instructions.

Do I need any tools to use this winterizing kit? No tools or extra equipment are required to use the Camco 65501 winterizer, only antifreeze and your own flusher.

What size hose does the Camco 65501 use? The kit uses a high-flow 5/8 inch hose with brass fittings to improve antifreeze flow into the engine.

Is the hose on the Camco DIY Boat Winterizer prone to kinking? No, the hose is reinforced and clear specifically to improve kink resistance during setup and use.

How much does the Camco 65501 boat winterizer weigh? The Camco DIY Boat Winterizer weighs 3.95 pounds.

Can the Camco 65501 be used with a front mounted raw water pump system like a Volvo engine? For front mounted raw water pump systems such as Volvo and others, Camco's Flush Adapter is needed and must be purchased separately from the 65501 kit.

Is the Camco DIY Boat Winterizer reusable? Yes, the antifreeze tank, winterizing tee, and hose assembly are reusable, so the 65501 kit can be used for winterizing each season.

What OEM part number is equivalent to the Camco 65501? The Camco DIY Boat Winterizer 65501 has an OEM equivalent part number of CMC65501.

How do I use the Camco 65501 to winterize my engine? Flush the engine with fresh water until the thermostat opens, then switch the valve from the fresh water flush to begin antifreeze flow; the engine's water pump draws the antifreeze from the 65501 tank into the engine to complete winterization.