Albert Goyette drives this 2021 Peterbilt 579 UltraLoft for Tandem Specialized out of Grayling, Michigan. The rig sports a 510-hp Paccar with a 13-speed. Goyette uses the truck for flatbed ...

The New Model 579 UltraLoft is the first major redesign for the truck by Peterbilt since the 579’s debut in 2012. Photo: Jack Roberts It felt good to be behind the wheel of a brand-new tractor-trailer ...

A fold-down ladder offers easy access to the Model 579 UltraLoft's upper sleeper bunk. Photo: Peterbilt Peterbilt has introduced its new Model 579 UltraLoft, an integrated high-loft sleeper truck ...

Peterbilt Motors Company introduced the UltraLoft, a new 80-inch sleeper configuration for its Model 579 tractor that brings an integral cab design to the product range to enhance ergonomics and ...

SCOTTSDALE, AZ. Peterbilt Motors Co. today introduced the Model 579 UltraLoft 80-in. integrated sleeper variant of its flagship on-highway truck, looking to offer an unmatched level of comfort and ...

Peterbilt Motors Company on Monday delivered the keys to the first production model of its Model 579 UltraLoft to David Freymiller, president and CEO of Oklahoma City-based Freymiller Trucking.

Peterbilt Motors Co. has unveiled a restyled version of its Model 579 flagship on-highway truck that offers a 7% fuel economy improvement compared with the truck it replaces, which was launched in ...

David Freymiller, president and CEO of Freymiller Trucking, was the first customer to receive the new Peterbilt 579 UltraLoft tractor. Peterbilt Motors Company delivered the keys to the first ...

This 2020 Peterbilt 579 semi-truck features an Ultraloft sleeper with a double bunk, plus 500,460 miles on its Paccar MX-13 inline-six turbodiesel engine. It’s currently up for grabs and the price is ...

Peterbilt Motors Co. announced it has begun production of its Model 579 UltraLoft with a high-roof, integral cab-and-sleeper design for its flagship on-highway model. The Model 579 UltraLoft was ...

Peterbilt Motors Company introduced Thursday the UltraLoft, a new 80-inch sleeper configuration for its Model 579 tractor that brings an integral cab design to the product range to enhance ergonomics ...