Kenworth Truck Company is celebrating its milestone 90th anniversary during 2013.   It all began in 1923 when Harry W. Kent and Edgar K. Worthington incorporated the Gersix Motor Company as “Kenworth." The company name was formed from a combination of letters from the founders’ last names.   That first year, the small Seattle truck manufacturer produced 78 six-cylinder, gasoline-powered trucks. Since then, Kenworth has produced more than 900,000 trucks.   Kenworth says it was the first truck manufacturer to install diesel engines as standard equipment in 1933 and sold the first sleeper cab in 1936. The Kenworth T600A transformed the industry as the first truly aerodynamic Class 8 truck in 1985. A year later, the Kenworth T800 was introduced and is still around, common in applications such as dump truck, mixer, logger, and extreme heavy haul. The milestone 250,000th T800 was produced and celebrated last year.   At the 2012 Mid-America Trucking Show, Kenworth intorduced the all-new Kenworth T680, the company’s most aerodynamic truck in its history.
View a slide show of Kenworth milestones here.