The first-generation 600 was introduced in 2004 for the United States and in 2005 for the Canadian market to replace the fourth generation F-Series cabover.

A new, facelifted 600 was introduced in 2007 for both the American and Canadian markets.

The L series' exterior design features new headlamps, and a redesigned bumper.

The interior also features a four-spoke steering wheel, a 7-inch Multi Information Display (MID) and a selection of options.

The carryover diesel engines remain unchanged.