Shore Power: An external electrical power supply for trucks. With the consistent feed of energy from shore power, a truck doesn't need to remain in idle while parked, and some systems also provide climate control inside the cab, as well as television and internet access.
Auxiliary Transmission: A type of limited gear transmission that is situated behind the main transmission. The additional transmission can increase the gear ratio when used in combination with the main transmission.
Bulkhead: A barrier placed at the rear of the tractor or at the front of the flatbed in order to shield the driver from shifting cargo in the event of a collision.
Fifth Wheel: A load bearing wheel that supports the front of the semi-trailer and secures the trailer to the towing truck.
Timber: A type of trailer used to hold logs in place during transportation. A timber can be either a long wood trailer or a short wood trailer.