For 90 years, we've been guided by a single, enduring vision: Building the World's Best. For 90 years, we've been guided by a single, enduring vision: Building the World's Best.

In 1923, H.W. Kent and E.K. Worthington rolled their first production Kenworth out the door. From that day forward, Kenworth has continued to forge a reputation for craftsmanship, durability and engineering excellence that is unrivaled in the world today.

1923 1923

The company becomes Kenworth after the two principal stockholders, Harry Kent and Edgar Worthington. Headquarters are established in Seattle.

1924-1926 1924-1926

In 1924 the company sells 80 trucks. The next year production nears two trucks per week. Customization becomes the Kenworth hallmark.

1927-1929 1927-1929

Harry Kent becomes President and steady growth leads to opening of a new factory in Seattle.

1930-1932 1930-1932

During the Depression, production and growth slows but Kenworth stays aggressive. Fire trucks become a specialty as Kenworth is able to comply with the special requirements of each fire department.

1933-1936 1933-1936

In 1933 Kenworth becomes the first American truck manufacturer to install diesel engines as standard equipment and the first sleeper cabs are introduced.

1941-1944 1941-1944

After Pearl Harbor, Kenworth begins production of M-1 "wreckers," heavy-duty six wheel drive vehicles armed with special equipment for combat conditions. In 1943 the company begins to produce components for the B-17“Flying Fortress” and the B-29 "Super Fortress" aircraft.

1944 1944

Pacific Car and Foundry buys Kenworth. Paul Pigott strikes a deal with the owners and Kenworth becomes a wholly owned subsidiary of Pacific Car and Foundry.

1945-1950 1945-1950

Kenworth is still producing military as well as commercial vehicles. Sugar plantations in Hawaii become large customers. In 1946 a new Seattle factory is opened and by 1950 foreign sales account for 40 percent of sales.

1951-1955 1951-1955

Kenworth produces the 853 for work in the oil fields of the Middle East and the 801 for earth moving in America. In 1955 the radical cab-beside-engine design is launched and becomes an instant hit.

1956 1956

The 900 series is introduced and a fleet successfully transports 3,000 tons of equipment and supplies to the northern Yukon for oil exploration.

1961-1965 1961-1965

Two new models are introduced. The W900 conventional provides larger cabs and a redesigned instrument panel; the K100 cabover maximizes cargo within state length restrictions. The Kansas City plant opens. The popularity of new models requires production expansion. By the end of the year the company produces a record 2,037 trucks.

1973 1973

50th birthday sales hit the five digit mark for the first time in 1972. In 1974 the Chillicothe, Ohio plant opens.

1976 1976

Kenworth introduces another industry first with the raised-roof AERODYNE sleeper. The new design quickly sets a new standard for driver comfort.

1985 1985

The new T600 improves aerodynamics by 40 percent and changed the industry forever. The radical slope-nosed design saves customers up to 22 percent on fuel compared to traditional conventionals.

1993 1993

On June 4th, 1993 a new facility in Renton, Washington opens to join those in Seattle, Chillicothe, Canada and Mexico. One month afterward, the AeroCab integrated cab/sleeper is unveiled.

1994 1994

Kenworth introduces its first ever medium-duty conventional— the T300. Design is based on the T600.

1996 1996

The exciting new T2000 is introduced, setting new standards for performance, comfort and style.

2007 2007

Kenworth introduces the T660, further refining the art of designing aerodynamic highway trucks.

2010 2010

Kenworth begins production of the T700, the most aerodynamic and spacious Kenworth ever built.

2012 2012

Kenworth has designed an outstanding truck that takes the company's long tradition of superior aerodynamics to a new level of achievement. The T680 is designed to smoothly slice through the air, setting an industry standard for aerodynamics and fuel efficiency.

Kenworth Truck Company
P.O. Box 1000 (98083-1000)  |  10630 NE 38th Place  |  Kirkland, WA 98033
Ph 425.828.5000  |  | / Kenworth.Truck.Co

The profile that revolutionized an industry.


The spirit of innovation that drove our earliest designs continues to guide the evolution of today's Kenworth. Integrating the latest in component technology with advanced aerodynamics allows Kenworth to remain the hands-down favorite when operations demand a critical competitive edge.

Built to perform in any arena.


Since 1923, Kenworth has custom-engineered trucks for a wide range of vocational and on-highway applications. We’ve created generations of tough, workhorse solutions designed to thrive in the most demanding conditions on earth. Trucks of unyielding quality that deliver years of peak performance where other trucks fear to tread.

Committed to quality since 1923.


Timeless, classic style has always been part of the Kenworth legacy. But so has our commitment to quality. From enhanced durability to improved driver comfort to optimized operational efficiency, each Kenworth stands as a testament to our uncompromising engineering and craftsmanship.