Kenworth introduces T680 tractor

Is the company’s most aerodynamic truck ever


Kenworth Truck Company has introduced its all-new T680 which offers superior fuel efficiency, performance and comfort.

The new tractor “establishes a new standard of excellence in the industry with exceptional styling, superior fuel efficiency, outstanding performance and extraordinary comfort,” said Gary Moore, Kenworth general manager and Paccar vice president. “Our goal for the T680 is to be best-in-class in key areas, including aerodynamics, quietness, comfort, reliability, durability, and serviceability.

“The Kenworth T680 is the new leader of The World’s Best product line.”


With the T680, Kenworth has taken its “long tradition of superior aerodynamics to a new level of achievement,” said Preston Feight, Kenworth chief engineer. “Simply put, the Kenworth T680 is Kenworth’s most aerodynamic truck - ever. It is designed to smoothly slice through the air, setting an industry standard for aerodynamics and fuel efficiency.”

The T680’s extremely stylish and aerodynamic body shape also benefits from sculpted full-height roof, optimized bumper and hood, full-height side extenders, cab/sleeper-to-fairings closeout panels, chassis fairings extenders and flush-mounted lighting. It all adds up to a significant 10 percent enhancement in aerodynamics, he noted.

“The T680 was engineered with 65 percent more storage capacity, a 50 percent larger windshield, 40 percent less interior noise, 30 percent larger door openings and best-in-class forward lighting,” he added.


Design features

The Kenworth T680 is also designed to maximize performance in line haul, pickup and delivery and regional hauling operations. Available with a new 76-inch sleeper or as a day cab, the T680 is standard with the fuel-efficient, 12.9-liter Paccar MX engine and optional with the Cummins ISX15 engine.

The T680’s cab is a spacious 83 inches wide with a comfortable 23 inches of room between the seats for excellent sleeper ingress and egress. The tractor offers the premium Diamond VIT and Vantage trim levels and two interior color options of Sandstone Tan and Slate Gray.

Other T680 features:

- Stamped aluminum cab - The lightweight and corrosion-resistant cab uses stamped aluminum panels joined with self-penetrating Henrob fasteners which help ensure excellent fit and finish while providing an extremely durable structure more resistant to water, noise and vibration. Acoustic treatments in the floor and firewall help block out airborne noise.

- Sleeper - The T680 features a new 76-inch sleeper integrated with the cab. The sculpted, full-height sleeper roof is a visually captivating styling feature that blends cab and sleeper shapes into one smooth aerodynamic arc. The roomy sleeper is 96 inches wide with a high ceiling, 60 cubic feet of storage and a full-height wardrobe cabinet.

A new Kenworth innovation is the rotating table, which is robust enough for daily use and will last the entire life of the truck, said Feight. The sleeper offers a mount for a 23-inch flat screen TV, storage tray for DVD player or video game system, hook up for a microwave and factory-installed inverter with optional shore power.

- Panoramic windshield - Standard is a new panoramic one-piece, bonded-in windshield with a “superior visibility,” he said. The windshield is 50 percent larger, has increased thickness to minimize the effects of rock incidents, offers efficient replacement time and provides enhanced aerodynamics.

- Robust door - The stamped aluminum door is lightweight and stiff, resulting in an “extremely durable design.” Computational fluid dynamics was used to design for smooth airflow around the cab and minimize noise-inducing turbulence.

A pressure relief valve equalizes interior and exterior air pressure to make the door easy to open and close. The door is triple sealed against the elements and road noise.

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