Kenworth T600 Specs

by Sara Harvey
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Road image by Janne Kallio from

The distinguishing feature of the Kenworth T600 tractor trailer is an aerodynamic design that could potentially conserve up to $25,000 a year in fuel, depending on previous mileage, according to Kenworth Truck Company. Owned by Paccar, Kenworth builds heavy and medium-duty trucks, and received the Clean Air Excellence Award in 2009 from the U.S. Environmental Protection Agency.

General Specifications

Engine sizes for the Kenworth T600 tractor trailer range from 11 to 15 liters and accommodate up to 600 horsepower. The front axle ratings range from 12,000 to 14,600 pounds. The rear axle ratings range from 23,000 to 46,000 pound tandems. The truck is designed for line, regional and bulk haul, and pick up and delivery.


The Kenworth T600 accommodates the heavy duty, Class 8, Paccar MX with a B10 design life of one million miles. The 380- to 485-horsepower engine features 1,450 to 1,750 pounds per foot of torque, and a 12.9-liter displacement. The engine warranty is two years or 250,000 miles. The engine has a rigid CGI head and block, in-block camshaft, floating oil pan, rear gear train location and integrated balancing. High-pressure fuel injection uses unit injection pumps, hitting 36,000 psi at the injector tip. Paccar offers protection plans for on-highway trucks from three to five years, and up to 500,000 miles.


The Kenworth T600 features an AG130 front air suspension system that can be specified in a 12,000 or 13,200 pound configuration. The AG130 uses two airbags per side to support 75 percent of the vertical load. Standard shocks have a one-piece bushing. One valve controls both leveling and height. The truck features a 64-inch front spring, as well as the 8-bag suspension and cab-sleeper suspension. The saddle paddle bracket functions as U-bolt saddle, spring clamp, lower air attachment, shock absorber mount, height control link mount and bump pad. The AG130 system is available on the T600.

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