Freightliner was founded in 1942 by Leland James, a trucking executive who wanted vehicles that were lighter and more efficient than the heavy conventionals of the day. Working from Portland, Oregon, the company produced its first trucks in the late 1940s using aluminium cabs and components, and the Freightliner name quickly became associated with innovative, fuel-conscious heavy trucks. Daimler-Benz acquired the company in 1981, and Freightliner remains part of Daimler Truck North America.

Freightliner is known for aerodynamic design and dependable long-haul performance. Its Cascadia has become one of the most common Class 8 tractors on American highways, joined over the years by the Century Class, Columbia, Coronado and the Business Class M2 medium-duty range. Freightliner trucks are typically powered by Detroit diesel engines, and the brand also supplies chassis for buses, emergency vehicles and other vocational applications. The brand was also among the first to treat fuel economy, aerodynamics and driver comfort as central design goals for long-haul tractors.

The workshop manuals on this page cover heavy-duty diesel engines, automated and manual transmissions, air brakes, suspension, electrical systems and wiring diagrams, torque specifications, diagnostics and scheduled maintenance. For operators whose income depends on uptime, accurate factory documentation is essential for fast, correct repairs.

These manuals benefit owner-operators, fleet maintenance teams and independent diesel workshops across North America. Drivers and buyers of used Freightliner trucks also rely on genuine workshop information to understand their vehicles and keep them running safely and profitably.