The 2023 Peterbilt 579 is a modern Class 8 vocational truck that builds upon Peterbilt's legacy of premium quality and performance. Introduced as a flagship model, it has consistently been a popular choice for owner-operators and fleets seeking a blend of efficiency, driver comfort, and robust engineering. The 579 features a conventional cab body style and has seen continuous updates since its inception, with key trims often revolving around engine specifications and aerodynamic packages. Pricing typically starts in the mid-$100,000s and can extend significantly higher depending on customization and specifications. Its popularity stems from its iconic Peterbilt styling, driver-centric interior, and strong reputation for reliability in demanding applications.
The Good
The 2023 Peterbilt 579 excels with its powerful yet efficient performance, legendary Peterbilt reliability, and exceptional driver comfort. Its iconic design appeals emotionally, while its fuel efficiency and long-term value resonate with practical buyers.
The Bad
While generally robust, potential buyers should watch out for the higher initial purchase price compared to some competitors. Some owners report that while comfort is high, the complexity of advanced technology features may require specialized maintenance knowledge and potentially higher repair costs over time.
2023 Peterbilt 579: Quick Overview
- Engine Options: The 2023 Peterbilt 579 typically offers a range of PACCAR MX-13 engines, known for their efficiency and durability. These can be complemented by Cummins ISX15 engines in some configurations.
- Horsepower: PACCAR MX-13 engines generally range from 400 to 500 horsepower. Cummins ISX15 options can offer even higher horsepower figures, often in the 500-600 hp range, depending on the specific application and desired torque.
- Fuel Economy: Fuel economy is a significant selling point for the 579. While precise MPG figures vary widely based on load, terrain, driving style, and specific engine/transmission configurations, owners commonly report figures in the 6.0 to 8.0 miles per gallon range for highway applications, aided by advanced aerodynamics and efficient powertrains.
- 0-60 Times: 0-60 times are not a primary metric for Class 8 trucks. Performance is focused on hauling capacity and maintaining speed under load. Acceleration from a standstill with a full load is gradual and power is optimized for maintaining highway speeds efficiently.
- Towing Capacity: The Peterbilt 579 is a Class 8 truck designed for heavy-duty towing and hauling. Its Gross Combined Weight Rating (GCWR) can exceed 80,000 pounds and often goes much higher depending on configuration and application, allowing it to haul immense loads.
- Trim-Level Features: Key trim features often include various aerodynamic packages (e.g., improved fairings, roof fairings), different sleeper configurations (e.g., 70-inch UltraCab, 80-inch sleeper), premium interior materials, advanced climate control systems, and customizable dashboard layouts. Advanced safety and driver-assist technologies are also prominent in higher trims.
2023 Peterbilt 579 Specifications
Vehicle Information
| Year | 2023 |
| Make | Peterbilt |
| Model | 579 |
| Trim | - |
| Style | - |
| Type | Truck |
| Category | Heavy Truck |
Manufacturing Details
| Made In | United States |
| Manufacturing City | DENTON |
Dimensions
| Doors | - |
| Curb Weight | - |
| Gross Vehicle Weight Rating | 33001 pounds |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 12.9L L6 DIESEL |
| Engine Size | 12.9L |
| Engine Cylinders | 6 |
| Transmission | - |
| Transmission Type | - |
| 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 2023 Peterbilt 579 Have?
The 2023 Peterbilt 579, like any heavy-duty truck, can encounter specific issues, though it generally holds a strong reputation for reliability. Frequently reported concerns across recent model years (including 2023) can sometimes involve the complex electronic systems, particularly related to the advanced driver-assistance features. Occasional reports may surface regarding sensor malfunctions or software glitches that require dealer diagnostics and updates. For the PACCAR MX-13 engine, while generally robust, some owners have noted potential issues with emissions control systems if not maintained meticulously. Some early model years might have had isolated reports concerning HVAC system performance or minor electrical gremlins, but these are often addressed through mid-cycle updates or recalls. It is crucial to check for any active recalls specific to the VIN for any 2023 model. Long-term reliability is heavily dependent on proactive maintenance, adherence to service schedules, and the operating environment. Drivers operating in severe conditions or with very high annual mileage may encounter wear and tear issues sooner than those with lighter duty cycles. While specific model year breakdowns of widespread issues are not always publicly cataloged extensively for new models, Peterbilt's commitment to quality and addressing owner feedback through their dealer network is a key factor in maintaining long-term satisfaction. Always consult dealer service records and recall databases for the most accurate information regarding a specific vehicle.
How long will the 2023 Peterbilt 579 last?
The 2023 Peterbilt 579 is engineered for long-haul service and is expected to achieve between 1,000,000 to 1,500,000 miles or more with diligent maintenance. Owner data and industry trends suggest that with regular oil changes, filter replacements, and adherence to the manufacturer's service schedule, major component failures are uncommon before 750,000 miles. The PACCAR MX-13 engine is known for its durability. Weaknesses that may emerge over time include potential wear on the clutch and transmission components under heavy use, and the gradual degradation of cabin materials if exposed to extreme conditions without proper care. Advanced electronic systems, while beneficial, may require more specialized attention as the vehicle ages. Overall, the 579 demonstrates excellent long-term durability when properly maintained.
What Technology & Safety Features are Included?
The 2023 Peterbilt 579 integrates a comprehensive suite of technology, driver assistance, and safety features designed to enhance productivity, comfort, and safety. Standard and optional tech includes an advanced infotainment system with a digital display, offering navigation, Bluetooth connectivity, and integration with essential business applications. For driver assistance, the 579 can be equipped with features such as adaptive cruise control, lane departure warning, and automatic emergency braking, which are crucial for reducing driver fatigue and mitigating potential collisions on long hauls. Many of these systems utilize advanced radar and camera technologies. The cabin itself is designed for optimal ergonomics, with intuitive controls and readily accessible information. Optional features can extend to sophisticated telematics systems for fleet management, providing real-time vehicle diagnostics, driver behavior monitoring, and location tracking. Enhanced lighting options, including LED headlights, improve visibility. While official NHTSA or IIHS crash-test ratings are not typically published for heavy-duty trucks like the 579 in the same way passenger vehicles are rated, Peterbilt designs these trucks to meet or exceed all applicable federal motor vehicle safety standards (FMVSS) for commercial vehicles. The robust chassis, reinforced cab structure, and advanced safety systems contribute to occupant protection. The focus is on preventing accidents and protecting occupants in the event of an incident. These technological advancements underscore Peterbilt's commitment to providing a modern and secure driving environment for professional drivers.
What Colors Options are Available?
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2023 Peterbilt 579 Prices and Market Value
The 2023 Peterbilt 579 typically had an original MSRP ranging from approximately $150,000 to over $250,000, depending heavily on engine choice, chassis configuration, sleeper size, and optional features. Current used market prices for a 2023 model can vary significantly, but expect to see them in the range of $120,000 to $200,000, reflecting their relatively recent production. Peterbilt trucks, in general, hold their value exceptionally well due to their reputation for durability and premium build quality. Depreciation is typically gradual for these vehicles, especially if well-maintained and equipped with desirable specifications. Factors greatly affecting resale value include mileage, overall condition, maintenance history, engine hours, tire wear, and the presence of desirable aftermarket upgrades or fleet-specific telematics. Trucks with lower mileage and comprehensive service records will command the highest prices in the used market.
2023 Peterbilt 579 Cost of Ownership
Owning a 2023 Peterbilt 579 involves significant costs, making it a substantial investment. Insurance premiums for heavy-duty trucks can be high, influenced by coverage levels, driving records, and operational radius. Fuel costs are a primary ongoing expense, directly tied to mileage and fuel efficiency, though the 579 is designed for optimization. Regular maintenance is crucial and costly, encompassing oil changes, filter replacements, tire rotations, and inspections, often requiring specialized technicians and parts. Repair costs can be high, especially for complex engine or electronic system issues. Overall, while the initial purchase is expensive and ongoing expenses are considerable, the 579 is considered cost-effective in the long run due to its durability, fuel efficiency, and ability to generate revenue, making it a profitable asset for its owners when managed effectively.
2023 Peterbilt 579 Fuel Efficiency
Fuel Type
Diesel
Fuel Capacity
-
City Mileage
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Highway Mileage
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2023 Peterbilt 579 Warranty
Basic
Original warranty
0 months / No data
Estimated remaining
Expired
Powertrain
Original warranty
0 months / No data
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Expired
Rust
Original warranty
0 months / No data
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Expired
2023 Peterbilt 579 Insurance
Insurance for a 2023 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 2023 Peterbilt 579 Compare to Other Truck?
The 2023 Peterbilt 579 competes in the premium Class 8 conventional truck segment against strong rivals like the Kenworth T680, Freightliner Cascadia, and Volvo VNL. In terms of performance, the 579, particularly with its PACCAR MX-13 engine, offers competitive power and torque outputs, comparable to similar offerings from competitors. Its focus on aerodynamics also contributes to excellent fuel efficiency, often rivaling or exceeding the best in class. Features-wise, the 579 is known for its premium driver-centric interior, emphasizing comfort and ergonomics, a hallmark of Peterbilt. While the Cascadia and VNL have made significant strides in technology and driver amenities, Peterbilt often retains an edge in perceived build quality and a more traditional, yet refined, aesthetic. Reliability is a strong suit for the Peterbilt 579; it boasts a legendary reputation for durability and longevity, often considered superior or on par with Kenworth, which shares many PACCAR components. Freightliner and Volvo also have solid reliability records, but Peterbilt often commands a premium for its perceived robustness. Price is where the 579 often sits at the higher end of the spectrum. It is typically more expensive when new than a comparable Freightliner Cascadia, and often priced similarly or slightly higher than a Kenworth T680, reflecting its premium branding and build. Volvo VNL pricing can also be competitive depending on configuration. Alternatives: For a slightly more budget-conscious option with excellent fuel efficiency and modern features, the Freightliner Cascadia is a compelling choice. The Kenworth T680 is a very close competitor, offering similar PACCAR-based powertrains and often a comparable level of driver comfort, making it a strong alternative. The Volvo VNL offers a strong alternative with a focus on driver comfort and advanced safety technologies. Ultimately, the choice often comes down to brand preference, specific feature requirements, and negotiated pricing, but the 579 remains a top contender for those prioritizing premium build quality and enduring value.
Final Verdict: Is the 2023 Peterbilt 579 a Good Truck?
The 2023 Peterbilt 579 is ideal for owner-operators and fleet managers who prioritize premium build quality, driver comfort, and long-term durability. It is worth buying for those who value its iconic Peterbilt heritage, excellent fuel efficiency, and strong resale value, especially if they plan to operate the truck for a significant number of miles over many years. While its initial purchase price is higher than some competitors, the total cost of ownership often proves favorable due to its longevity and lower maintenance needs in the long run. Buying new offers the latest technology and warranty coverage, while a well-maintained used 2023 model can present a more accessible entry point without sacrificing significant reliability. Specific trims with aerodynamic enhancements and comfortable sleeper configurations are particularly valuable for long-haul applications.
Cathleen V
Cathleen is an exceptional freelance writer covering hot topics in the automotive world from a gearhead's perspective. Her articles delve into various aspects of automotive technology and history, offering readers detailed insights into engine performance, reliability, and maintenance. Through her engaging and informative writing, Cathleen provides valuable information to automotive enthusiasts and consumers alike, helping them make informed decisions about vehicle maintenance and purchases.