The 2019 Peterbilt 579 is a prominent Class 8 conventional semi-truck, celebrated for its advanced aerodynamics and driver-centric design. Introduced in 2012, the 579 gained popularity for its blend of efficiency and Peterbilt's renowned quality. Available in various configurations, including Day Cabs and spacious sleeper options like the UltraLoft, it offers versatility for many hauling needs. New pricing in 2019 typically ranged from $150,000 to over $200,000, standing out for its premium feel, fuel economy, and strong brand prestige.
The Good
The 2019 Peterbilt 579 offers powerful PACCAR engine performance and robust reliability, ensuring minimal downtime. Its spacious, ergonomic interior provides superior driver comfort, appealing emotionally as a "home away from home." The aerodynamic design enhances fuel efficiency, a practical advantage for operating costs. With strong resale value and a professional appearance, it's a sound investment for both image-conscious and budget-minded operators.
The Bad
Potential weaknesses for the 2019 Peterbilt 579 often revolve around its complex emissions systems, including DEF and DPF components, which can be prone to sensor failures or require costly maintenance. Some owners report minor electrical glitches and occasional interior trim issues. Diligent attention to emission system upkeep is crucial to avoid significant repair expenses.
2019 Peterbilt 579: Quick Overview
- Engine Options: The 2019 Peterbilt 579 primarily offered PACCAR MX-11 and PACCAR MX-13 engines.
- Horsepower:
- PACCAR MX-11: Ranged from approximately 355 to 440 horsepower.
- PACCAR MX-13: Ranged from approximately 405 to 510 horsepower.
- Torque:
- PACCAR MX-11: 1,250 to 1,650 lb-ft.
- PACCAR MX-13: 1,450 to 1,850 lb-ft.
- Fuel Economy: Highly variable depending on load, terrain, and driving style, but typically ranges from 6 to 8 miles per gallon (MPG) for long-haul configurations.
- 0-60 Times: Not a standard metric for Class 8 heavy-duty trucks; acceleration performance is focused on pulling heavy loads rather than speed from a standstill.
- Towing Capacity: Designed for standard North American Gross Combination Weight Ratings (GCWR) up to 80,000 lbs, with higher capacities possible through special permitting for specific applications.
- Trim-Level Features: The 579 was available in various configurations to suit different operational needs.
- Day Cab: Optimized for regional hauls, vocational tasks, and enhanced maneuverability, featuring a comfortable but compact cabin.
- Sleeper Cabs: Offered in multiple sizes, including Mid-Roof, UltraCab, and the highly popular UltraLoft.
- UltraLoft Sleeper: Known for its expansive, apartment-style living space, offering stand-up room, abundant storage, dual bunks, a microwave shelf, and refrigerator/freezer options. Designed to maximize driver comfort and productivity on extended routes.
- Interior: Ergonomic dashboard design, premium seating options (e.g., Peterbilt's Evolution seats), SmartNav infotainment system, ample storage, and robust HVAC systems.
- Transmission: Available with PACCAR Automated Manual Transmissions (AMT) for efficiency and ease of driving, as well as various Eaton Fuller manual transmission options.
- Axle Configurations: Multiple rear axle ratios and tandem drive options to optimize for fuel efficiency or pulling power.
- Suspension: Air-ride suspension options (e.g., Peterbilt Air Leaf) for improved ride quality and cargo protection.
- Exterior: Aerodynamic fairings, LED lighting, and various aesthetic packages, allowing for customization.
2019 Peterbilt 579 Specifications
Vehicle Information
| Year | 2019 |
| Make | Peterbilt |
| Model | 579 |
| Trim | - |
| Style | - |
| Type | Truck |
| Category | Medium Truck |
Manufacturing Details
| Made In | United States |
| Manufacturing City | DENTON |
Dimensions
| Doors | - |
| Curb Weight | - |
| Gross Vehicle Weight Rating | - |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 12.9L L6 TURBO DIESEL |
| Engine Size | 12.9L |
| Engine Cylinders | 6 |
| Transmission | Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | - |
| Drivetrain | 6x4 |
Additional Features
| Anti-Brake System | - |
| Steering Type | - |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | - |
| Invoice Price | - |
| Delivery Charges | - |
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What Problems Does the 2019 Peterbilt 579 Have?
For the 2019 Peterbilt 579, as with many modern Class 8 trucks, frequently reported problems often center around the sophisticated emissions control systems. Issues such as Diesel Exhaust Fluid (DEF) system sensor failures, Diesel Particulate Filter (DPF) clogging, and Selective Catalytic Reduction (SCR) system malfunctions are common concerns. These problems can lead to reduced engine power, "derate" conditions, and costly diagnostic and repair expenses, underscoring the critical need for meticulous maintenance and the use of quality fluids.
Beyond emissions, some owners have noted minor electrical glitches, including issues with wiring harnesses, sensor misreads, or occasional dashboard display irregularities. HVAC system components, such as blower motors or AC refrigerant leaks, have also been reported in a subset of vehicles. While less frequent, turbocharger issues can emerge in higher-mileage units, requiring significant attention.
Regarding recalls, the 2019 Peterbilt 579 has been subject to various campaigns, reflecting ongoing safety and compliance adjustments common in the heavy-duty truck industry. Specific recalls for this model year have included issues pertaining to potential steering shaft binding, seat belt retractor failures, and certain brake light components not illuminating correctly. It's always advisable for potential buyers to check the National Highway Traffic Safety Administration (NHTSA) database using the VIN for any outstanding recalls.
Long-term reliability is generally strong for the major powertrain components like the PACCAR MX engines and transmissions, provided they receive proper and consistent maintenance. However, the complexity of modern electronics and emission systems means these areas represent the primary long-term reliability concerns and potential cost drivers over the vehicle's lifespan. Proactive maintenance and prompt attention to warning lights are essential to mitigate these issues.
Beyond emissions, some owners have noted minor electrical glitches, including issues with wiring harnesses, sensor misreads, or occasional dashboard display irregularities. HVAC system components, such as blower motors or AC refrigerant leaks, have also been reported in a subset of vehicles. While less frequent, turbocharger issues can emerge in higher-mileage units, requiring significant attention.
Regarding recalls, the 2019 Peterbilt 579 has been subject to various campaigns, reflecting ongoing safety and compliance adjustments common in the heavy-duty truck industry. Specific recalls for this model year have included issues pertaining to potential steering shaft binding, seat belt retractor failures, and certain brake light components not illuminating correctly. It's always advisable for potential buyers to check the National Highway Traffic Safety Administration (NHTSA) database using the VIN for any outstanding recalls.
Long-term reliability is generally strong for the major powertrain components like the PACCAR MX engines and transmissions, provided they receive proper and consistent maintenance. However, the complexity of modern electronics and emission systems means these areas represent the primary long-term reliability concerns and potential cost drivers over the vehicle's lifespan. Proactive maintenance and prompt attention to warning lights are essential to mitigate these issues.
How long will the 2019 Peterbilt 579 last?
A 2019 Peterbilt 579 engaged in long-haul operations would typically accumulate significant mileage, often ranging from 100,000 to 150,000 miles per year. By 2024, such a truck could reasonably have between 400,000 to 750,000 miles. With exemplary maintenance habits, Class 8 trucks like the 579 are designed for a service life exceeding 1,000,000 miles or 10-15 years.
Its long-term durability is high for core components like the engine block, frame, and transmission. However, over time, expect wear and tear on suspension bushings, interior trim degradation, and potential rust formation in neglected areas. The most common long-term weaknesses revolve around the emissions system components (DEF sensors, DPF filters), requiring costly replacements or frequent maintenance. Electronic components, while reliable initially, can also become points of failure as the truck ages. Proactive maintenance is paramount to achieving a million-mile lifespan.
Its long-term durability is high for core components like the engine block, frame, and transmission. However, over time, expect wear and tear on suspension bushings, interior trim degradation, and potential rust formation in neglected areas. The most common long-term weaknesses revolve around the emissions system components (DEF sensors, DPF filters), requiring costly replacements or frequent maintenance. Electronic components, while reliable initially, can also become points of failure as the truck ages. Proactive maintenance is paramount to achieving a million-mile lifespan.
What Technology & Safety Features are Included?
The 2019 Peterbilt 579 integrated a suite of technology and comfort features aimed at enhancing driver productivity and safety. At the heart of its built-in tech was the Peterbilt SmartNav infotainment system, featuring a responsive touchscreen display that provided access to navigation, Bluetooth connectivity, USB ports, and vehicle information. Drivers also benefited from a configurable digital dashboard display, allowing for personalized views of critical operational data. Telematics systems, such as PACCAR Connect, offered advanced fleet management capabilities, including remote diagnostics, GPS tracking, and detailed performance reports.
For entertainment, the standard setup included an AM/FM stereo with CD/MP3 compatibility and Bluetooth audio streaming. Optional upgrades included satellite radio, premium audio systems, and comprehensive TV preparation kits within sleeper cabs, often accompanied by multiple 12V and 110V power outlets and inverters for household appliance use, transforming the sleeper into a true "home away from home."
Driver-assistance features were a significant highlight, particularly with the availability of systems like Bendix Wingman Fusion. This advanced suite combined radar and camera technology to provide collision mitigation warnings, adaptive cruise control, and lane departure warning capabilities, actively working to prevent accidents. Standard safety features included robust electronic stability control (ESC), traction control, and advanced anti-lock braking systems (ABS). The cab structure itself was designed for occupant protection, and modern LED headlights provided superior visibility.
Crash-test ratings, as typically understood for passenger cars by organizations like NHTSA or IIHS, are not applicable to Class 8 heavy-duty trucks. Safety for these vehicles is primarily focused on active collision avoidance technologies and the structural integrity of the cab to protect occupants in the event of an unavoidable incident.
For entertainment, the standard setup included an AM/FM stereo with CD/MP3 compatibility and Bluetooth audio streaming. Optional upgrades included satellite radio, premium audio systems, and comprehensive TV preparation kits within sleeper cabs, often accompanied by multiple 12V and 110V power outlets and inverters for household appliance use, transforming the sleeper into a true "home away from home."
Driver-assistance features were a significant highlight, particularly with the availability of systems like Bendix Wingman Fusion. This advanced suite combined radar and camera technology to provide collision mitigation warnings, adaptive cruise control, and lane departure warning capabilities, actively working to prevent accidents. Standard safety features included robust electronic stability control (ESC), traction control, and advanced anti-lock braking systems (ABS). The cab structure itself was designed for occupant protection, and modern LED headlights provided superior visibility.
Crash-test ratings, as typically understood for passenger cars by organizations like NHTSA or IIHS, are not applicable to Class 8 heavy-duty trucks. Safety for these vehicles is primarily focused on active collision avoidance technologies and the structural integrity of the cab to protect occupants in the event of an unavoidable incident.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
2019 Peterbilt 579 Prices and Market Value
When new in 2019, a Peterbilt 579 Day Cab typically started around $150,000, with fully optioned UltraLoft sleeper models easily exceeding $200,000. Today, the used market for a 2019 model is highly dynamic, with prices generally ranging from $50,000 to $100,000+, depending heavily on mileage, condition, engine specification, and sleeper size. Lower-mileage, well-maintained sleeper trucks command higher prices.
Depreciation for Class 8 trucks is substantial in the initial years, but a Peterbilt often retains a stronger percentage of its value compared to some rivals, thanks to its brand reputation. High mileage is the primary driver of depreciation. Factors affecting resale value include a verifiable service history, specific engine (PACCAR MX-13 is generally preferred), the presence of an automated manual transmission (AMT), premium sleeper configurations, and overall cosmetic and mechanical condition. Market demand for used trucks also plays a significant role.
Depreciation for Class 8 trucks is substantial in the initial years, but a Peterbilt often retains a stronger percentage of its value compared to some rivals, thanks to its brand reputation. High mileage is the primary driver of depreciation. Factors affecting resale value include a verifiable service history, specific engine (PACCAR MX-13 is generally preferred), the presence of an automated manual transmission (AMT), premium sleeper configurations, and overall cosmetic and mechanical condition. Market demand for used trucks also plays a significant role.
2019 Peterbilt 579 Cost of Ownership
Owning a 2019 Peterbilt 579, like any Class 8 truck, entails significant long-term costs. Commercial insurance is substantial, often thousands annually, varying by coverage and driver history. Fuel is the largest expense, with even 7 MPG translating into massive costs over 100,000+ miles yearly. Maintenance includes regular oil changes (every 20k-30k miles), tire replacements, and costly emissions system servicing. Repair costs are high due to specialized parts and labor rates, especially for engine or transmission issues. Overall, the 579 is a costly vehicle to own, but it's a revenue-generating asset where economy is measured by its efficiency and reliability against operational earnings. It's economical in its segment due to Peterbilt's durability.
2019 Peterbilt 579 Fuel Efficiency
Fuel Type
Diesel
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
2019 Peterbilt 579 Warranty
Basic
Original warranty
0 months / No data
Estimated remaining
Expired
Powertrain
Original warranty
0 months / No data
Estimated remaining
Expired
Rust
Original warranty
0 months / No data
Estimated remaining
Expired
2019 Peterbilt 579 Insurance
Insurance for a 2019 Peterbilt 579 is moderately priced, reflecting its status as a Truck with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2019 Peterbilt 579 Compare to Other Truck?
The 2019 Peterbilt 579 competes directly with other premium Class 8 trucks like the Freightliner Cascadia, Kenworth T680, Volvo VNL, and International LT Series.
In terms of Performance, the 579, with its PACCAR MX-11 and MX-13 engines, offers robust power and strong hauling capabilities, balancing efficiency with torque. This is comparable to the Kenworth T680, which shares the same powertrain. The Freightliner Cascadia, often powered by Detroit DD series engines, is frequently lauded for its exceptional fuel efficiency. Volvo VNL models with the D13 engine are known for their integrated powertrain optimization, while International LT trucks utilize Cummins or Navistar engines, offering varied performance profiles.
Regarding Features, the Peterbilt 579 boasts a premium, driver-focused interior, advanced SmartNav infotainment, and plush sleeper options like the UltraLoft, emphasizing comfort and brand prestige. The Cascadia offers sophisticated driver-assistance systems (Detroit Assurance) and a modern, functional cabin. The T680 is a strong counterpart to the 579, providing similar levels of luxury and technology. The Volvo VNL excels in safety features and often has a very comfortable, ergonomically designed workspace, while the International LT focuses on driver connectivity and ride quality.
Reliability is a strong suit for both Peterbilt and Kenworth (PACCAR group), with their common engines and transmissions generally proving durable. However, emissions systems remain a common point of concern across all brands. Freightliner and Volvo also exhibit strong reliability with their proprietary powertrains. International has made significant strides in reliability but historically faced more challenges.
Price new, all these premium trucks fall into a similar range. On the used market, the 579 tends to hold its value well due to the Peterbilt brand, comparable to the T680.
Recommendations:
In terms of Performance, the 579, with its PACCAR MX-11 and MX-13 engines, offers robust power and strong hauling capabilities, balancing efficiency with torque. This is comparable to the Kenworth T680, which shares the same powertrain. The Freightliner Cascadia, often powered by Detroit DD series engines, is frequently lauded for its exceptional fuel efficiency. Volvo VNL models with the D13 engine are known for their integrated powertrain optimization, while International LT trucks utilize Cummins or Navistar engines, offering varied performance profiles.
Regarding Features, the Peterbilt 579 boasts a premium, driver-focused interior, advanced SmartNav infotainment, and plush sleeper options like the UltraLoft, emphasizing comfort and brand prestige. The Cascadia offers sophisticated driver-assistance systems (Detroit Assurance) and a modern, functional cabin. The T680 is a strong counterpart to the 579, providing similar levels of luxury and technology. The Volvo VNL excels in safety features and often has a very comfortable, ergonomically designed workspace, while the International LT focuses on driver connectivity and ride quality.
Reliability is a strong suit for both Peterbilt and Kenworth (PACCAR group), with their common engines and transmissions generally proving durable. However, emissions systems remain a common point of concern across all brands. Freightliner and Volvo also exhibit strong reliability with their proprietary powertrains. International has made significant strides in reliability but historically faced more challenges.
Price new, all these premium trucks fall into a similar range. On the used market, the 579 tends to hold its value well due to the Peterbilt brand, comparable to the T680.
Recommendations:
- Similar Alternative: The Kenworth T680 is essentially a sister truck to the 579, sharing many components, offering a very similar experience with slight aesthetic and interior design differences.
- Better Alternatives (depending on priority): For absolute top-tier fuel efficiency and advanced integrated safety systems, the Freightliner Cascadia is often a strong contender. For industry-leading safety technology and an exceptionally quiet, comfortable cab, the Volvo VNL is an excellent choice. The 2019 Peterbilt 579 remains a superb choice for those prioritizing iconic styling, premium driver comfort, and proven PACCAR powertrain reliability.
Final Verdict: Is the 2019 Peterbilt 579 a Good Truck?
The 2019 Peterbilt 579 is ideal for owner-operators and fleets prioritizing driver comfort, brand image, and a reputable powertrain for long-haul and regional applications. Its premium interior, aerodynamic design, and PACCAR engine options offer a compelling blend of efficiency and driver satisfaction. It's definitely worth buying, especially as a used truck, where the initial depreciation has already occurred.
When considering a used 2019 579, it's crucial to obtain a pre-purchase inspection and comprehensive maintenance records, paying close attention to the emission system's service history. For maximum comfort on extended runs, an UltraLoft sleeper is highly recommended. If regional hauling is the primary use, a Day Cab offers better maneuverability. The PACCAR MX-13 engine provides an excellent balance of power and efficiency. Overall, the 579 is a strong, reliable workhorse that, with proper care, delivers excellent long-term value in the used heavy-duty truck market.
When considering a used 2019 579, it's crucial to obtain a pre-purchase inspection and comprehensive maintenance records, paying close attention to the emission system's service history. For maximum comfort on extended runs, an UltraLoft sleeper is highly recommended. If regional hauling is the primary use, a Day Cab offers better maneuverability. The PACCAR MX-13 engine provides an excellent balance of power and efficiency. Overall, the 579 is a strong, reliable workhorse that, with proper care, delivers excellent long-term value in the used heavy-duty truck market.
Simon A
Simon is a contributor to VinCheck, where he provides articles and reviews on various automotive topics. His work focuses on delivering accurate and up-to-date information about used cars, helping readers make informed decisions.