An Overview Of Kenworth Tractor Trailers

Kenworth Trucks


The Kenworth Truck company is an American maker of heavy duty and medium trucks. Incorporated in Seattle in 1923, the company now has a presence in countries such as Australia, Canada, and Mexico. Although the original founders were George T. Gerlinger and Louis Gerlinger, Jr., they later sold the business to Edgar K. Worthington and Captain Frederick Kent. At the time of this transaction (1917), the original founders were conducting business from a commercial building owned by Edgar K. Worthington’s mother. Two years later (1919), the older Kent retired from the business. This was not the end of the flourishing business as Kent’s son Harry took over and became Worthington’s partner.  After the takeover was complete, Kent and Harry moved the business to 506 Mecer Street. Later on, they moved the business to 1263 on the same street. These two businesspersons lent the company its now famous name. By 1922, the company was well on its way to success with sales of 53 trucks.During its early days, the company assembled trucks only. This was to change in 1926 when the first buses rolled off the assembly line.

The second world war saw Kenworth dabble in supplying the army with heavy-duty wreckers. In addition, the company also got into the aircraft-manufacturing act by sub-assembling the Boeing B-17 bomber.  The Pacific Car and Foundry Co. bought the Kenworth company in 1945. The company holds the enviable position of being the first to offer diesel engines for trucks. With such an impressive background and history, Kenworth has continued to capture the imagination of truckers in the US to date. The following guide will take you through the different types of Kenworth trucks.


This is a true workhorse in every sense of the word. Depending on your needs, you can purchase a tractor-trailer or straight truck. The gross vehicle weight (GVW) for these truck options ranges from 33,000lbs to 68,000lbs. Under the hood, you will find a powerful PACCCAR PX-8 engine that can deliver 350 hp and 1,000 lb-ft of torque. If you still prefer another type of engine, you can choose Cummins engines. The Cummins ISL G is a natural gas engine with the capacity to deliver 320 hp and 1,000 lb-ft of torque. Another great option is the Cummins ISL that can easily top 380 hp and 1,300 lb-ft of torque. Front axle ratings start from 12,000 to 22,000 lbs while single rear ratings start from 21,000 to 30,000 lbs. If you happen to have interest in a dual rear, the axle ratings start from 40,000 to 46,000 lbs.


Powered by a 485-hp Cummins ISX engine, this truck can easily generate 1,650 ft-lbs of torque. Combine this with a 13-speed manual transmission and performance gets a new meaning. According to the manufacturer, the T660 the engine meets stringent federal emission benchmarks. This truck also has an extended day cab where you can store personal possessions. To be precise, the cab has an extra 6 inches of length. This adds up to a total of 122 inches from front bumper to back of cab. The manufacturer has also thrown in an additional 5 inches of height to accommodate the really tall truckers. On average, the T660 chugs 7.2 miles per US gallon. At night, you can rest assured the new halogen headlamps (generating 44 percent more output) will light up your way.

Kenworth Trucks






According to the manufacturer, the T700 has the lowest aerodynamic drag of all Kenworth trucks. Interior features include state-of-the art multiplexed instrumentation with Kenworth NavPlus, audio controls, and audio controls. Other features include a drawer style refrigerator, adjustable flat panel TV mount, and a soaring 8-foot cathedral ceiling. On the outside, the T700 has a stylish grille bearing the Kenworth signature, halogen projector headlamps and an aerodynamic high roof.


This is a truck that redefines the word beast of burden. Moving 200-ton loads is not a strange occurrence. Whether you are moving timber or coal loads, the C500 has the power and toughness required for these tasks.


The T800 has an LNG engine that can deliver 450-hp and 1,650 ft-lbs. in addition to the LNG fuel system, the Cummins ISX 15-liter engine uses Westport’s High Pressure Direct Injection (HDPI) technology. As a result, the trucks use 95 percent natural gas and 5 percent diesel.


This is a Kenworth truck with a long nose and engine size ranging from 9 to 16 liters. The engine generates 625 hp while the front axle rating ranges from 12,000 to 22,000 lbs. For the rear axles, ratings range from 23,000 to 58,000 lbs.


This custom built class 5 truck uses a PACCAR PX-6 engine. The truck takes a 4×2 configuration and a gross vehicle weight (GVW) of 19,500 lbs. Other features include tilt steering wheel and telescoping, a durable chassis, and an electronic shift module.


This is a medium duty truck rated at 26,000 lbs GVW. As a trucker, you can opt for a non-CDL operable or straight truck. You can also choose automatic or manual transmission. For the class 7 T370, the GVW range starts from 26,001 to 33,000 as a tractor or straight truck.


The Kenworth T470 packs a GVW rating that starts from 33,000 to 68,000 lbs. Powered by a PACCAR PX-8 engine, this truck delivers 350 hp and 1,000 lb-ft. The optional Cummins ISL engine delivers 380 hp and 1,300 lb-ft of torque.

Kenworth Trucks



T270/T370 Hybrid

The T370 has a GVW rating that starts from 26,001 to 33,000 and is a handy choice for utility as well as pickup and delivery operations. On the other hand, the T270 boasts of a GVW rating of 26,000 lbs. You can purchase the truck as a straight or CDL operable truck. A PACCAR PX-6 engine powers both types of trucks.

Kenworth trucks are still as popular today as they were in the past with truckers. The manufacturer continues to innovate and use new technologies. This has seen the company win awards such as the J.D Power Awards for Heavy Duty Truck Product Satisfaction. To ensure maximum fuel efficiency, new truck models boast of aerodynamic designs and innovative engines.

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