Versatility, Wider 2.1-Meter Cab, New PACCAR TX-8 Transmission

Kenworth introduced a comprehensive new medium duty conventional truck lineup ranging from Class 5 to light Class 8. The announcement came during a major virtual product reveal.

From left: Kenworth T480V, Kenworth T380, Kenworth T280 and Kenworth T180

The new models are the Kenworth T180 (Class 5), Kenworth T280 (Class 6), Kenworth T380 (Class 7) and Kenworth T480 (light Class 8). In addition, for customers needing FEPTO, full parent rails and fixed grille, Kenworth added the Kenworth T380V and Kenworth T480V with a vocational hood.

“Our new lineup sets the industry standard for quality, performance, reliability and durability throughout the many diverse, medium duty applications in the U.S. and Canadian markets. These Kenworth models possess excellent versatility and maneuverability, spacious 2.1-meter wide cab, exceptional visibility and driver-focused ergonomics, and new PACCAR TX-8 transmission. Our new medium duty trucks are an impressive addition to the World’s Best product line,” said Kevin Baney, Kenworth general manager and PACCAR vice president.

Kenworth’s new medium duty vehicles are designed to serve an expansive variety of applications including cargo and reefer van, beverage, tow and recovery, utility and government, fuel oil and propane, landscaping, fire and dump and mixer. The trucks may be specified with either a standard low roof or a raised roof option. The low roof is 63 inches tall, 4 inches shorter than the raised roof, making it ideal for height-restricted applications.

The new trucks offer three hood types to support the lineup’s application versatility – short aero hood (107.5-inch BBC) that accommodates front axles from 8K to 20K lbs., medium aero hood (109.5-inch BBC) for higher horsepower and AWD applications, and Kenworth’s vocational ‘sloped’ hood for the T380V and T480V. The shorter wheelbases produce a tighter turning radius and enhanced maneuverability for urban or vocational operating environments.

The Kenworth’s new medium duty vehicles are available with the model year 2021 PACCAR PX-7 engine rated up to 325 horsepower and 2021 PACCAR PX-9 engine up to 380 horsepower, depending upon BBC. With the introduction of the new medium duty vehicles, Kenworth offers – for the first time in its medium duty trucks – the near-zero emission Cummins Westport L9N natural gas engine that delivers 320 horsepower.

Kenworth T480V

Kenworth also launched the new PACCAR TX-8 automatic transmission as standard for the Kenworth T180, T280, T380 and T480. The robust, yet lightweight 8-speed transmission provides smooth performance and enhances fuel economy. The PACCAR TX-8 serves a wide range of applications from pickup and delivery to utility service and a variety of vocational applications. When matched to the PACCAR PX-7 or PACCAR PX-9 engine, the transmission has a maximum torque rating up 1,000 lb.-ft. of torque and a 57,000-lb. GCWR.

“We designed these new Kenworth medium duty trucks with our customers. Over the past several years, Kenworth actively sought, listened to and collected invaluable input and feedback from nearly 1,000 customers and drivers throughout the extensive design process,” said Joe Adams, Kenworth chief engineer. “The important customer insights – representing a variety of medium duty applications – were essential to developing The World’s Best medium duty vehicles.”

Kenworth T180 

More than 500 people participated in design studies to help Kenworth define the dimensions and fine-tuned ergonomics of the new models, resulting in a new 2.1-meter cab 8 inches wider than the previous version. Three-person seating with the bench seat is standard for the Kenworth T180, T280 and T380 and optional for the T480. Customers also can select various seating options featuring high- or medium-back seats for a comfortable ride.

The larger front windshield enhances visibility by nearly 17 percent – also aided by the hood’s steep slope – compared to previous Kenworth medium duty models. The new cab construction reduces interior noise by up to 50 percent. Kenworth also lowered the cab by up to 2 inches – depending upon configuration. That benefits in-city drivers, who may climb in and out of their truck up to 60 times daily.

Kenworth developed a new instrumentation cluster with a 7-inch high-definition digital display centered between four standard analog gauges – speedometer, tachometer, oil pressure, and coolant temperature. The integrated Kenworth Digital Display allows drivers to personalize information on the screen to match their preferences. The 20 physical tell-tales and variants support either standard or metric units. Additional ‘virtual tell-tales’ are available. Within the digital display, drivers can choose from a variety of screens that show specific vehicle information, trip information, gauges, and more. The display also enables drivers to customize the digital gauge layout view from the many accessory gauges, and intuitively integrates advanced driver assistance (ADAS) features, when specified on the truck.

Kenworth T380 

“Kenworth achieved a retail sales market share record for the U.S. and Canada of 11.7 percent in medium duty vehicles in 2020. Kenworth’s outstanding new medium duty conventional models will further expand the full Kenworth experience into the Class 5 through light Class 8 medium duty truck markets. Fleets and truck operators will discover the tremendous benefits of operating these new Kenworth medium duty vehicles and count on them to provide exceptional performance over many years of service,” said Laura Bloch, Kenworth assistant general manager for sales and marketing.

Kenworth T280

Here are some additional Kenworth New Medium Duty features and special touches:

Aero Grille: The new aero grille is constructed with bright, annealed stainless steel for increased durability and protection from the elements. Crowns are available in chrome or in-mold dark gray. An external winter front or bug screen can be attached to the front of the grille.

Air Intake System: The new engine-mounted system features an automotive-style flat panel filter design with a one-piece intake pipe and optional, remotely controlled inside/outside air control. The system is compatible with a pre-cleaner/ember separator. The new design reduces cab noise, offers ease of service, and cuts the cost of replacement filter elements.

Air-Assisted Hydraulic Clutch: This system for manual transmissions reduces driver fatigue through a pedal design that better matches a driver’s foot angle when engaging the clutch.

Bumper: Kenworth offers three bumper types – the standard one-piece or optional three-piece breakaway “aero” bumper; a rear-mounted one-piece channel bumper; and a vocational bumper with options for a tow hook, fog lights, headlights, daytime running lights (DRL) and other mounts.

DEF Tanks: The redesigned DEF tanks provide improved thawing time, which reduces emissions and helps to increase fuel economy. There are various DEF options for a variety of body types.

Exhaust System: Exhaust options include right-hand, under cab DPF/SCR that optimizes cab access via a robust step and cover design. An underframe DPF/SCR is available for clear BOC and provides an improved diffuser design. Benefits of this configuration are a shortened wheelbase offering a gain of 5 inches and additional flexibility for under cab components.

Hydraulic Brake: When pressed, it is similar to engaging a brake in a passenger vehicle. The brake better matches a driver’s foot angle to further reduce driver fatigue.

Kenworth SmartWheel®: The optional Kenworth SmartWheel® steering wheel controls for the Digital Display provide automotive-level functionality. The multi-function wheel features scroll input that keeps allowing for quick fingertip control.

Kenworth TruckTech+® Remote Diagnostics: This optional system enhances vehicle diagnostics by providing engine health information from new Kenworth medium duty trucks to fleet managers and Kenworth dealers. The system diagnoses the issue and provides the recommended solution to the driver and fleet manager.

Steering and Front Suspension: Kenworth medium duty vehicles feature an impressive wheel cut angle for an enhanced turning radius. Maximum axle capability is 50 degrees (standard track) and 55 degrees (wide track). The axles are compatible with a wide range of tire sizes (225/70R19.5 – 425/65R22.5). Lighter weight mono-leaf front springs (8K lbs., 10K lbs. and 12K lbs.) are available.

Steering Column: Standard in the new Kenworth medium duty models, the new steering column is designed to extend ergonomic range of motion, reduce driver fatigue and enhance overall comfort. It features full-tilt and telescopic position capability, self-canceling turn signal capability and column-mounted shifter.

Throttle Pedal: The new durable, hanging throttle pedal offers an automotive feel to Kenworth’s medium duty trucks. The new pedal helps reduce driver-fatigue and features a slip-resistant surface.

Transmission Shifter: The enhanced column-mounted shifter provides improved ergonomics over the former pushbutton controller.

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Kenworth Truck Company is the manufacturer of The World’s Best® heavy and medium duty trucks. Kenworth’s Internet home page is at Kenworth is a PACCAR company.