If I recall, the towing capacity is 3500lbs. There is also no integrated trailer brake controller, so you would have to add that as well. A small boat would be fine, but if it's 3500-4000 lbs, forget it. Keep in mind that you're going to have that boat loaded with fuel, gear, extra passengers, etc. Nope. No extra engine and transmission cooler lines, etc. Not really a towing vehicle.