Haulage
- Tractor unit or towing engine, a vehicle that provides the motive power to haul a load, as in:
- Semi-trailer truck in Australian English
- Ballast tractor, a heavy haulage road vehicle designed to pull or push heavy or exceptionally large loads
- Artillery tractor, a military vehicle hauling an artillery piece
- Steam tractor, a vehicle powered by a steam engine which is used for pulling
- Tractor, a vehicle specifically designed to deliver a high tractive effort (or torque) at slow speeds
Read more about this topic: Prime Mover