3 Ton Tractor Trailer provided by us, is a huge truck with two independent components, a tractor and a trailer, that are connected by metal bars. It refers to a vehicle or tractor with an engine that can run alone. Because it lacks front wheels, a tractor-trailer can only be used when it is attached to a truck. 3 Ton Tractor Trailer is very much liked and highly appreciated by people, in the market. The engine-powered air pump releases the brakes when you connect a trailer to your truck using a hitch or fifth-wheel link.