Hi Denali46,
Welcome to the Heartland Owners Forum.
A Cyclone 4250 has a GVWR of 20,000, and an empty pin weight spec of 3,650 lbs. For planning purposes, you'll want to assume the actual pin weight will come in at about 20% of GVWR, or 4,000. To that, you need to add the weight of your hitch, bed cover, bed liner, tools, firewood, passengers, pets, and anything else carried in the truck. That'll probably put you well over the payload spec of the truck.
Will it pull it? Yep. Safely? Maybe, maybe not. You may want a dually.
You can get more information on this subject at Fifth Wheel Safe Towing, a website created by another Heartland owner.
I purchased a 4250 in July and have been pulling it off and on with 2012 F-350 single axle with 6 in lift 37/12.50/20's and handles it like a dream.My wife and I are considering purchasing a Cyclone 4250. My question is if my truck is capable of towing it, I own a 2015 GMC Denali 3500 crew cab SRW. Thanks in advance.
Sarge oviosly you didn't see where I was from NorthDakota the wind never stops blowing here and as far as stopping and in control never a problem, maybe when I'm retired and old I'll switch to a dually.You can pull it. However stopping it and controlling it in severe wind / weather is another topic entirely.
Upgrade your truck to a dually diesel for the safety of your family and yourself...
Sarge