2023 Peterbilt 579 Base

2023 Peterbilt 579

The Model 579’s features are the direct result of our customers’ input. We’ve considered the feedback of over 100 user tests and interviews with drivers, techs, and safety and maintenance managers in applications including over-the-road sleepers, LTL day cabs and vocational applications such as tankers and aggregate haulers.

The results add up to many technological advancements and a distinctively styled, super comfortable, sleeker, more aerodynamically and fuel-efficient Model 579. One that endured million-mile endurance tests and extensive field validation. No wonder it’s the most technologically advanced, fuel-efficient Peterbilt – ever.

Features may include:

Carries a heavy payload with a lighter payout at the pump

• The PACCAR powertrain offers an integrated solution for maximizing MPG and payload capacity

• It combines durable PACCAR MX engines and DX-40k tandem drive axles

• The integration of these components allows for effortless pulling, improved efficiency, enhanced fuel economy and increased driver comfort

• The PACCAR MX-13, PACCAR MX-11 and PACCAR PX-9 engines utilize a combination of proven technologies and state-of-the-art innovations

• These engines are designed to maximize MPG and achieve the lowest possible fuel consumption, emissions and noise levels

Aerodynamics enhance the efficiency

• The Model 579 offers the most advanced aerodynamic features and packages to improve fuel economy

• The bold grille and bumper maximize aerodynamic performance, while the lower-sitting front end enhances visibility of the ground in front of the truck

• The new air dam below the bumper further improves aerodynamics without compromising ground clearance

• Sculpted mirror heads and arms not only improve aerodynamic efficiency but also allow the driver to see the top of the trailer while backing up

• The A-pillar fairing directs air across the side of the cab to improve aerodynamics, reduce noise and enhance driver comfort

All the comforts of home

• The interior of the new Model 579 sleeper provides home-like comfort

• The 80-inch UltraLoft sleeper offers 8 feet of headroom, 70 cu. ft. of storage and the largest mattresses in the industry

• It can accommodate up to a 32-inch TV and a 1.1 cubic-foot microwave, both the largest in their class

• In the double bunk configuration, a foldaway ladder conveniently disappears when not in use

• Sleeper features include sound abatement technology, independent HVAC with separate controls, optional fuel-fired heater and multiple no-idle hoteling options