Winterization Bundle

What does an RV winterization bundle include?

A winterization bundle covers the core items you need to protect your RV's plumbing through freezing temperatures: RV antifreeze, a water heater bypass kit, a blow-out plug for clearing lines with compressed air, and a hand pump or siphon kit for pulling antifreeze through the system. For a full breakdown of individual components, see our RV winterizing kits collection.

When should I winterize my RV?

Winterize before nighttime temperatures drop below 32°F for more than a few hours. For most owners that means late October through November, earlier in northern states. If you store your rig outdoors without heat, do not wait for the first hard freeze; water left in lines, the water heater tank, or the pump can crack fittings and split the pump housing.

How much RV antifreeze do I need?

Most travel trailers and Class C motorhomes need 2 to 3 gallons of non-toxic pink RV antifreeze. Fifth wheels and larger Class A coaches with longer plumbing runs, an ice maker line, or a residential washer hookup can take 4 to 6 gallons. Always bypass the water heater first, draining it saves you 6 or 10 gallons of antifreeze depending on tank size. Check the 10 gallon RV water heater collection if you need a replacement bypass kit or drain plug.

Why is a tire pressure monitoring system part of a winterization bundle?

Cold weather drops tire pressure roughly 1 PSI for every 10°F decrease, and RVs sitting in storage on under-inflated tires develop flat spots and sidewall stress. A TPMS lets you check pressure without uncovering the rig, and catches slow leaks before a spring shakedown trip. Pair it with covered storage or RV tire covers for the full off-season setup.