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Peterbilt 386 sleeper-cab–style commercial 6×4 tractor unit. A tractor unit, also known as a truck unit, lorry unit, power unit, prime mover, ten-wheeler, semi-tractor, semi-truck, semi-lorry, tractor cab, truck cab, lorry cab, big rig tractor, big rig truck or big rig lorry or simply a tractor, truck, lorry, semi, big rig or rig, is a characteristically heavy-duty towing engine that ...
2015 Peterbilt 388 with car hauler trailer. A car carrier trailer, also known as a car-carrying trailer, car hauler, or auto transport trailer, is a type of trailer or semi-trailer designed to efficiently transport passenger vehicles via truck. Modern car carrier trailers can be open or enclosed.
When equipped with a tow bar, two MK14s can be joined and towed by a single MK48 power unit. This is referred to as a "Tandem Tow" or "TT". MK15: Recovery vehicle capable of recovering LVSs, MTVRs and Humvees. MK16: Fifth-wheel is designed to tow the M870 family of semi-trailers. It is the shortest of the FPU/RBU combinations, creating a ...
A low-power diesel, alternative fuel engine, or electric motor usually with an automatic transmission. A fifth-wheel coupling with an integrated lifting mechanism allows the semi-trailer's legs to remain in the lowered position during movement. 380 millimetres (15 in) and 32,000 kg (71,000 lb) of hydraulic lift is typical.
It is a form of four-wheel drive [2] but not one of all-wheel drive. It is the most common form of drivetrain of semi-tractors [2] and heavy haul fixed-chassis cargo trucks in larger countries such as the United States and Australia; in Europe, 4×2 and 6×2 variants are more commonplace.
Conventional style cab tractor A cab-over semi-tractor Tractor with an end-dump trailer A FAW semi-trailer truck in China A semi-trailer truck (also known by a wide variety of other terms – see below) is the combination of a tractor unit and one or more semi-trailers to carry freight. A semi-trailer attaches to the tractor with a type of hitch called a fifth wheel. Other terms There are a ...
Wabash National is an American diversified industrial manufacturing company and North America's largest producer of semi trailers and liquid transportation systems. The company specializes in the design and production of dry freight vans, refrigerated vans , platform trailers, liquid tank trailers, intermodal equipment, engineered products and ...
A tractor unit pulling a semi-trailer A truck pulling a semitrailer using a trailer dolly. A semi-trailer is a trailer without a front axle. The combination of a semi-trailer and a tractor truck is called a semi-trailer truck (also known simply as a "semi-trailer", "tractor trailer", or "semi" in the United States). [1]