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 ...

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 ...

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 ...

[Stay on top of transportation news: Get TTNews in your inbox.] Peterbilt Motors Co. announced it has begun production of its Model 579 UltraLoft with a high-roof, integral cab-and-sleeper design for ...

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 ...

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 ...

Peterbilt Motors Company has recently introduced the new Model 579 UltraLoft. The truck offers drivers an integral cab and sleeper design for Peterbilt’s on-highway Model 579 that provides the ...

During a Feb. 3 YouTube launch, Peterbilt unveiled its New Model 579. The new truck is the first significant upgrade of the Model 579 aerodynamic tractor, which 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 ...