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Peterbilt’s New Medium-Duty Trucks [Photos]

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In the spring of 2021, Peterbilt unveiled an all-new medium-duty truck line in Phoenix, Arizona.

The new trucks are a significant upgrade for the OEM with modern advanced safety systems that are thoroughly integrated throughout the vehicle, as well as an all new cab, all new chassis, and an all-new automatic transmission specifically designed for vocational applications. Read more about the truck line here.

Photos by Jack Roberts.

Another simple yet effective safety feature is a new notebook for smartphones to allow safer and easier navigation.

Photo: Jack Roberts

A new brilliantly lit series of gauges can be infinitely arranged by the driver into the middle dash cluster screen.

 

Photo: Jack Roberts

At the Texas Motor Speedway outside of Dallas on April 21, 2021, Peterbilt hosted a day of briefings, walk-arounds and drives in the new models, which cover Classes 5 through 8. 

Photo: Jack Roberts

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The Peterbilt New Model 579 was launched earlier in 2021 and features a host of new upgrades, including integrated safety systems, and a sleeker aerodynamic profile.

Photo: Jack Roberts

Peterbilt’s Model 548 vocational truck also received a host of upgrades in conjunction with the medium duty launch.

Photo: Jack Roberts

Peterbilt also introduced a brand-new, vocationally focused automatic transmission for the new medium-duty lineup. Designed by ZF, the new Paccar TX-8 is a fully automatic transmission, featuring eight gears and the ability to monitor changes in road grade, vehicle acceleration, torque demand, weight and engine load to keep the truck in the most fuel-efficient gear.

Photo: Jack Roberts

The new Paccar TX-8 automatic transmission delivers automotive-like shifting with up to 5% better fuel economy, and features a Park Lock safety system that automatically engages the park lock should a driver forget to do so. 

Photo: Jack Roberts

The models include the new Model 535 and Model 536 trucks, which are designed for the Class 5/6 non-CDL lease and rental markets, and the Model 537 and Model 548 trucks, designed for the Class 7 and 8 segments.

Photo: Jack Roberts

Among the upgrades on the Model 548 are simple, yet effective touches like highlighted yellow safety grab handles to enter and exit the cab.

Photo: Jack Roberts

The Peterbilt design team spent a lot of time keeping ambient noise levels low inside the new cabs. As a result, there’s remarkably little exterior noise filtering through to the inside of the truck.

Photo: Jack Roberts

A new, sleeker, front end enhances the overall aerodynamic efficiency of the new Peterbilt medium-duty truck line.

Photo: Jack Roberts

Naturally Peterbilt had an example of its new model 579 tractor on hand for test drives as well.

Photo: Jack Roberts