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Red Peterbilt 579 Ultraloft

Peterbilt Model 579 Ultraloft

The Peterbilt 579 UltraLoft combines advanced aerodynamics with premium comfort, featuring a spacious high-roof sleeper designed for long-haul efficiency. Engineered for performance and driver well-being, the UltraLoft delivers exceptional fuel economy without compromising on luxury or functionality. 

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PACCAR Parts & Service

PACCAR Parts and Peterbilt Service are at the ready at your local Peterbilt dealer. Shop here to get them in a hurry and get your business back on the road.

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EV or Diesel?

The Peterbilt Operating Costs Calculator helps you decide which configuration is best for your business.

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News

May 21, 2026

Peterbilt Unveils Freedom 250 Special Edition Model 589

Peterbilt Motors Company proudly introduces the Freedom 250 Special Edition Model 589, a limited-production truck honoring the enduring spirit of America a...

April 16, 2026

Peterbilt Reinforces Commitment to Canadian Market at Truck World 2026

Peterbilt Motors Company will feature its expansive product lineup at Truck World 2026, Canada’s most influential commercial vehicle trade show, taking pla...

March 11, 2026

Peterbilt to Showcase Latest Vocational Truck Solutions at Work Truck Show

Peterbilt Motors Company will participate in the Work Truck Show, North America's largest annual commercial vehicle event, March 10-13, 2026, at the Indian...