Authorities say a bobtail tractor careened off the Delaware Memorial Bridge, plunging into the river below. What is a bobtail ...

Peterbilt 367 will be up for grabs to the highest bidder featuring a 915 ci Cummins ISX engine and an Eaton-Fuller RT-18 ...

The "semi" title is meant to describe the trailer itself rather than the truck, in particular any trailer that only possess rear axles, uses a fifth wheel to connect to the tractor, and is ...

The company's TrailTrax concept, revealed this week at the IAA Transportation in Hanover, is essentially a semi trailer with a 210-kW AxTrax 2 e-Axle, a brake energy recuperation system, and a ...

An investigation revealed Strickland was approaching the rear of two adjacent trucks, a 2018 Peterbilt towing a semi-trailer in the center lane, and a 2015 Kenworth three axle straight truck in ...

Truckers sometimes drive the semi-truck without the trailer — a practice known as "bobtailing."  However, it's not the safest thing to do, mainly because the trailer adds the weight and balance that ...