AAM BLOG
The Peterbilt Model 579, known for its advanced design and engineering, is a top-tier Class 8 heavy-duty truck that sets new benchmarks in fuel efficiency, driver comfort, and modern technology. Built to exceed the demands of long-haul, day cab, and vocational applications, the Model 579 incorporates feedback from drivers, technicians, and safety managers, resulting in a truck that offers an unparalleled experience for both drivers and fleet managers. With the enhanced EPIQ package, the Peterbilt 579 stands out as a fuel-efficient, durable, and technologically advanced choice in the competitive world of heavy-duty trucks.
Power and Efficiency with the PACCAR Powertrain
At the heart of the Peterbilt Model 579’s performance lies the PACCAR powertrain, which integrates top-of-the-line engines with high-performing drive axles to maximize efficiency and payload capacity. This powertrain includes the PACCAR MX-13, MX-11, and PX-9 engines, which deliver up to 605 horsepower and an impressive 2,050 lb.-ft. of torque. These engines feature cutting-edge technology, such as variable-speed components, optimized combustion, and a broad torque curve that ensures peak torque at low RPMs—perfect for demanding applications where power, responsiveness, and fuel efficiency are critical.
The PACCAR TX-12 PRO automated transmission complements the engine’s robust design with advanced functionalities, such as dual PTO options, Off-Highway Calibration, and Rock Free Mode for challenging terrains. This transmission enables drivers to tackle a variety of conditions while maximizing efficiency. It offers a maximum Gross Combination Weight Rating (GCWR) of 70,000 lbs. and features dual calibration modes, allowing drivers to adapt shifting patterns based on load and road conditions for a smoother, customized driving experience.
Superior Aerodynamics for Improved Fuel Economy
The Peterbilt Model 579 is designed with an emphasis on aerodynamics, ensuring lower drag and enhanced fuel efficiency. The truck’s bold grille, sculpted mirror heads, and lowered front end improve both airflow and driver visibility. Additional aerodynamic features include an air dam below the bumper and A-pillar fairings, which direct air along the cab sides, reducing noise and boosting fuel economy. Fuel efficiency is excellent, averaging 7.5–8 MPG, though it’s slightly lower due to the wind curtains on the front bumper (air kit). These refinements make the Model 579 one of the most fuel-efficient trucks in its class.
The Model 579 EPIQ package further enhances fuel efficiency through specialized aerodynamic components such as full chassis fairings, wheel well closeouts, and advanced ground skirts that direct airflow around the vehicle’s sides and back. These features collectively result in up to a 10% improvement in fuel efficiency over previous models, positioning the Model 579 as an ideal choice for long-haul and on-highway applications where fuel savings are essential.
Luxurious and Functional Interior for Long-Haul Comfort
Inside the Peterbilt Model 579, every aspect of the cab and sleeper has been designed with driver comfort and convenience in mind. The 80-inch UltraLoft sleeper cab provides 8 feet of headroom and one of the industry’s largest mattresses, making it a true home away from home for long-haul drivers. In the double-bunk configuration, a foldable ladder is easily accessible and stows out of sight when not in use, providing flexibility and maximizing space.
Additional amenities include accommodations for a 32-inch television, a 1.1-cubic-foot microwave, and ample storage cabinets. The cabin’s quiet environment is enhanced by advanced sound-dampening materials, while an independent HVAC system keeps the cabin comfortable in any climate. Options like a fuel-fired heater and no-idle hoteling solutions allow for enhanced driver comfort and significant fuel savings, further contributing to the Model 579’s efficiency.
The driver-centric cab design includes ergonomic features such as redesigned control panels, multiple cupholders, and a multi-functional smart steering wheel with audio, phone, and cruise controls. The truck also features a 15-inch digital display—the largest of its kind—offering a fully customizable interface that consolidates critical information and integrates Advanced Driver Assistance Systems (ADAS) technology, making it easy for drivers to stay informed without distractions. The Model 579 also comes standard with factory Michelin tires and a premium interior package, which is very comfortable for long hours on the road.
Enhanced Safety with Advanced Driver Assistance Systems (ADAS)
Safety is a top priority in the Model 579, and Peterbilt has equipped this truck with a suite of ADAS features that work to protect both the driver and surrounding vehicles. Key safety systems include lane-keeping assist, overspeed alerts, and a sophisticated collision mitigation system that uses radar and camera inputs to monitor the road and alert drivers to potential hazards. The lane-keeping feature gently corrects steering to maintain lane position, a critical safeguard given that lane departure is a leading cause of truck accidents.
The Digital Vision System (DVS) replaces traditional side mirrors with high-definition cameras mounted on the A-pillars. These cameras reduce blind spots, minimize headlight glare at night, and improve visibility in all weather conditions. The DVS not only enhances safety but also reduces drag, contributing up to 1.5% in fuel savings. High-resolution monitors display live camera feeds, with additional features such as Automatic Trailer Tracking and Infrared Night Vision that provide drivers with an extra layer of visibility and confidence on the road.
Outstanding Fuel Efficiency and Performance with the EPIQ Package
The Peterbilt Model 579 EPIQ package incorporates a variety of features that enhance fuel efficiency and performance, making it ideal for fleet managers seeking to lower operational costs. With aerodynamic upgrades and advanced drivetrain optimization, the EPIQ package helps the truck achieve an impressive fuel economy of over 10 MPG, an improvement of 14% over previous models. Low rolling resistance tires, paired with the PACCAR MX-13 engine and the SmartTire Pressure Monitoring System, contribute significantly to these fuel savings.
The EPIQ package also includes full chassis fairings, closeouts, ground skirts, and tandem fairings that further reduce drag without sacrificing essential ground clearance. These features make the Model 579 an efficient, reliable choice for long-haul routes, day cab assignments, and other demanding applications.
Home-Like Sleeper Comfort for Restful Breaks
Long-haul drivers know the importance of comfort during rest periods, and the Model 579 provides a sleeper environment that feels like home. With a 42-inch wardrobe, a functional workstation, and a mount for a flat-screen TV, drivers can relax and recharge between shifts. The SmartAir battery-based cab comfort system maintains cabin climate without idling, which reduces fuel consumption by up to 4% annually. Additional insulation, a thick sleeper curtain, and quiet cabin technology ensure that the sleeper remains peaceful and comfortable, allowing drivers to get a good night’s sleep no matter where the road takes them.
Built for Durability and Easy Maintenance
Designed with longevity in mind, the Peterbilt Model 579 features an all-aluminum cab construction with huckbolt fasteners that add resilience while keeping the cab lightweight. For easy maintenance, the hood includes a blow-down protection device that keeps it secure during servicing, while step-in service points under the fairings make entry safe and convenient. The tip-out chassis fairings provide effortless access to essential components, such as batteries and APUs, making regular maintenance tasks straightforward.
The Model 579’s PACCAR MX engine is designed with a floating oil pan that reduces vibrations and noise, resulting in a quieter, more comfortable ride. Triple-sealed doors further enhance the noise-resistant cab environment, ensuring a quiet and stable interior even on rough or uneven roads.
Driver-Focused Design for Enhanced Comfort and Visibility
The Model 579’s design keeps drivers at the forefront, with details that make long drives safer and more comfortable. The A-pillar-mounted vanes help to reduce cabin noise, and door-mounted mirrors improve visibility while ensuring stability. The thinner A-pillars and extended windshield create an expansive field of vision, while LED marker lights improve visibility at night.
For additional safety, projector beam headlights focus light directly on the road, illuminating only what the driver needs to see. These features demonstrate Peterbilt’s commitment to creating a vehicle that prioritizes driver needs, combining comfort, safety, and ease of use in a sleek, modern package.
With 75 years of manufacturing experience, Peterbilt brings together innovation, fuel efficiency, and the highest standards of driver comfort in the Model 579 EPIQ. This truck is not just a vehicle; it’s a testament to Peterbilt’s ongoing commitment to setting new industry standards. Fleet managers and drivers alike can expect to see continued advancements in performance, fuel economy, and driver amenities, making the Peterbilt Model 579 EPIQ one of the most competitive and desirable trucks in the heavy-duty segment.
FAQs: Peterbilt Model 579 EPIQ
1. What types of engines are available for the Peterbilt Model 579?
- The Model 579 offers a range of PACCAR engines, including the MX-13, MX-11, and PX-9. These engines provide up to 605 horsepower and 2,050 lb.-ft. of torque, offering the flexibility needed for a variety of trucking applications.
2. How does the EPIQ package improve the truck’s fuel economy?
- The EPIQ package includes advanced aerodynamics, such as full chassis fairings, ground skirts, and the APEX powertrain, leading to up to a 10% improvement in fuel economy over standard configurations.
3. What safety features are included in the Peterbilt 579?
- The Peterbilt 579 includes an array of safety technologies, such as lane-keeping assist, collision mitigation, and the Digital Vision System, which replaces traditional side mirrors with cameras to improve visibility and reduce drag.
4. How comfortable is the sleeper cab in the Model 579?
- The 80-inch UltraLoft sleeper offers ample headroom, a large mattress, and sound-dampening technology, making it highly comfortable for long-haul drivers.
5. What transmission does the Model 579 utilize?
- The Model 579 is equipped with the PACCAR TX-12 PRO automated transmission, which provides dual PTO functionality and Off-Highway Calibration, making it ideal for both on-highway and vocational applications.
6. How does the Digital Vision System contribute to safety?
- The DVS replaces side mirrors with HDR cameras, reducing blind spots and glare, and includes features like Automatic Trailer Tracking and Infrared Night Vision, which enhance visibility in various conditions.
Conclusion
The Peterbilt Model 579 EPIQ is a groundbreaking truck that combines power, efficiency, and driver comfort, setting a new standard for heavy-duty trucking. With advanced safety features, a luxurious interior, and impressive fuel economy, this truck meets the needs of modern drivers and fleet managers alike. Whether for long-haul routes or demanding day cab applications, the Model 579 offers a dependable, efficient, and comfortable experience on the road.
