The 2018 Peterbilt 389 is an iconic Class 8 vocational truck, celebrated for its timeless styling and robust engineering. Production has spanned many years, with the 389 being a staple of Peterbilt's lineup. It primarily features a traditional conventional cab, available in various sleeper configurations. While specific trim levels are less defined than in passenger vehicles, customization is a hallmark. New, these trucks could range from $130,000 to $200,000+ depending on specifications. Its enduring popularity stems from its classic aesthetic, powerful performance, and the pride of ownership it instills, making it a favorite among owner-operators and fleets prioritizing image and durability.
The Good
The 2018 Peterbilt 389 excels in raw performance and unwavering reliability, powered by potent PACCAR engines. Its classic, commanding design appeals to the emotions, while the spacious, well-appointed cabin offers practical comfort for long hauls. Built for the long haul, its durability translates to excellent long-term value.
The Bad
Potential weaknesses for the 2018 Peterbilt 389 include its higher initial purchase price and potentially less advanced in-cab technology compared to newer models. Fuel efficiency, while good for its class, may not match the absolute best in class. Maintenance can be costly due to specialized parts.
2018 Peterbilt 389: Quick Overview
- Engine Options: The 2018 Peterbilt 389 is primarily powered by PACCAR's MX-13 engine, a robust 12.9-liter inline-six diesel. Other Cummins ISX engines were also common options depending on specific configurations and customer preferences.
- Horsepower: PACCAR MX-13 engines typically range from 400 to 500 horsepower, with some configurations potentially exceeding this. Cummins engines offered a similar horsepower spectrum.
- Fuel Economy: Fuel economy for heavy-duty trucks like the 389 is measured in miles per gallon (MPG) but varies significantly based on load, terrain, driving style, and specific engine/transmission pairing. Expect figures in the 5-7 MPG range under optimal conditions.
- 0-60 Times: 0-60 mph times are not a standard metric for Class 8 trucks. These vehicles are designed for hauling heavy loads at steady speeds, not rapid acceleration.
- Towing Capacity: The towing capacity is immense, designed for heavy hauling. Gross Combination Weight Ratings (GCWR) can exceed 80,000 lbs, with specific ratings determined by axle configurations, chassis, and other specifications. It is built for hauling loaded trailers across various industries.
- Trim-Level Features: Peterbilt trucks are highly customizable, so specific trim levels are less defined than in passenger cars. Key features and options are determined by the customer's build sheet. Common areas of customization include:
- Aerodynamics: Various aerodynamic packages, including fairings, chassis skirts, and roof fairings, to improve fuel efficiency.
- Interiors: A wide range of interior appointments are available, from durable vocational work-spec interiors to luxurious sleeper cab options featuring premium materials, enhanced sound insulation, comfortable seating, ample storage, and sometimes even entertainment systems.
- Chassis and Axles: Different axle configurations (e.g., tandem rear axles), suspension types, and frame reinforcements to suit specific hauling needs.
- Wheels and Tires: A selection of wheel types (e.g., aluminum) and tire sizes.
- Lighting: Various headlight and lighting configurations, including auxiliary lighting.
- Exhaust: Custom exhaust stacks and configurations.
2018 Peterbilt 389 Specifications
Vehicle Information
| Year | 2018 |
| Make | Peterbilt |
| Model | 389 |
| 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 | 14.9L L6 DIESEL |
| Engine Size | 14.9L |
| 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 2018 Peterbilt 389 Have?
The 2018 Peterbilt 389, like any heavy-duty truck, can experience issues, though its overall reputation is one of robust reliability. Recalls are generally tied to specific components or systems rather than widespread design flaws. For the 2018 model year, owners and fleet managers should be aware of potential recalls that may have been issued by Peterbilt or its component suppliers. Common areas for recalls on heavy-duty trucks often involve braking systems, electrical harnesses, emissions control systems (like DEF systems), or certain safety-related components.
While specific widespread problems for the 2018 389 are not heavily documented in general consumer forums, there are general considerations for this generation of Peterbilt trucks. The PACCAR MX-13 engine, while generally reliable, can be susceptible to issues related to the diesel particulate filter (DPF) regeneration system if not properly maintained or if the truck is primarily used for short-haul, stop-and-go driving. Exhaust gas recirculation (EGR) systems can also require attention over time.
Electrical gremlins, while not unique to Peterbilt, can sometimes arise in complex vehicle wiring harnesses, especially after years of service and exposure to harsh environmental conditions. These can manifest as intermittent dash warning lights or issues with auxiliary systems. AdBlue/DEF fluid quality and heater issues are also common concerns for diesel trucks of this era.
Long-term reliability is heavily influenced by the owner's maintenance regimen. Consistent adherence to PACCAR's recommended service intervals for oil changes, filter replacements, and component inspections is paramount. Issues can also arise from the specialized nature of components used in heavy-duty applications, meaning that when a part fails, it can be expensive to replace. Owner communities and trucking forums are good resources for identifying any model-year-specific quirks or frequently discussed maintenance items.
While specific widespread problems for the 2018 389 are not heavily documented in general consumer forums, there are general considerations for this generation of Peterbilt trucks. The PACCAR MX-13 engine, while generally reliable, can be susceptible to issues related to the diesel particulate filter (DPF) regeneration system if not properly maintained or if the truck is primarily used for short-haul, stop-and-go driving. Exhaust gas recirculation (EGR) systems can also require attention over time.
Electrical gremlins, while not unique to Peterbilt, can sometimes arise in complex vehicle wiring harnesses, especially after years of service and exposure to harsh environmental conditions. These can manifest as intermittent dash warning lights or issues with auxiliary systems. AdBlue/DEF fluid quality and heater issues are also common concerns for diesel trucks of this era.
Long-term reliability is heavily influenced by the owner's maintenance regimen. Consistent adherence to PACCAR's recommended service intervals for oil changes, filter replacements, and component inspections is paramount. Issues can also arise from the specialized nature of components used in heavy-duty applications, meaning that when a part fails, it can be expensive to replace. Owner communities and trucking forums are good resources for identifying any model-year-specific quirks or frequently discussed maintenance items.
How long will the 2018 Peterbilt 389 last?
The 2018 Peterbilt 389 is engineered for exceptional longevity. With diligent maintenance, these trucks commonly see service well beyond 1 million miles, and many can reach 1.5 to 2 million miles or more. Owner data and fleet records consistently show that PACCAR-powered 389s can operate reliably for 10-15 years, sometimes longer, depending on the intensity of their use. The chassis and frame are exceptionally robust, designed to withstand significant stress. Weaknesses that may emerge over time typically relate to wear-and-tear on drivetrain components (clutch, transmission seals), suspension bushings, and electrical connectors due to vibration and exposure. However, the core engine and structural integrity of the 389 are known for remarkable durability.
What Technology & Safety Features are Included?
The 2018 Peterbilt 389 emphasizes a practical, driver-focused approach rather than a plethora of advanced consumer-grade technology. Built for the demanding vocational environment, its integrated tech focuses on operational efficiency and driver comfort. Standard features typically include a functional digital driver information display providing vital vehicle data, an AM/FM/CD/MP3 audio system, and power windows and locks. Optional upgrades often extend to more advanced infotainment systems with touchscreens, Bluetooth connectivity for hands-free calling and audio streaming, and integrated navigation systems. Peterbilt also offered premium sound systems for enhanced entertainment during long hauls.
Driver-assistance features on the 2018 model are generally less extensive than on modern light-duty vehicles. While not typically equipped with adaptive cruise control or lane-keeping assist as standard, some advanced options might have been available, particularly on premium sleeper configurations, such as forward-facing cameras for collision mitigation warnings. Advanced braking systems, including ABS, are standard for safety. Stability control systems were also becoming more common.
Safety features are paramount in heavy-duty trucks. The 389 is built with a robust steel cab designed to protect occupants in the event of a collision. Features like powerful LED headlights, integrated turn signals, and reflective markings are standard to enhance visibility. Seatbelt reminders and sturdy seat designs are also integral to occupant safety. While formal crash-test ratings like those from NHTSA or IIHS are not directly applicable or typically published for heavy-duty commercial trucks in the same way they are for passenger cars, Peterbilt adheres to stringent federal safety regulations and industry standards for structural integrity and occupant protection.
Driver-assistance features on the 2018 model are generally less extensive than on modern light-duty vehicles. While not typically equipped with adaptive cruise control or lane-keeping assist as standard, some advanced options might have been available, particularly on premium sleeper configurations, such as forward-facing cameras for collision mitigation warnings. Advanced braking systems, including ABS, are standard for safety. Stability control systems were also becoming more common.
Safety features are paramount in heavy-duty trucks. The 389 is built with a robust steel cab designed to protect occupants in the event of a collision. Features like powerful LED headlights, integrated turn signals, and reflective markings are standard to enhance visibility. Seatbelt reminders and sturdy seat designs are also integral to occupant safety. While formal crash-test ratings like those from NHTSA or IIHS are not directly applicable or typically published for heavy-duty commercial trucks in the same way they are for passenger cars, Peterbilt adheres to stringent federal safety regulations and industry standards for structural integrity and occupant protection.
What Colors Options are Available?
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2018 Peterbilt 389 Prices and Market Value
When new, the 2018 Peterbilt 389 had a price range that typically started around $130,000 and could easily exceed $200,000 for highly customized configurations with premium sleeper options and advanced powertrains. The used market for a 2018 Peterbilt 389 currently reflects strong residual values, a testament to its desirability and durability. Depending on mileage, condition, and specific features, prices can range broadly from $70,000 to $150,000 or more. Depreciation is relatively slow for these trucks compared to lighter vehicles, especially for well-maintained units with desirable specifications. Factors significantly affecting resale value include engine mileage, remaining powertrain warranty, overall condition, presence of luxury options (like custom interiors), and compliance with emissions standards.
2018 Peterbilt 389 Cost of Ownership
Owning a 2018 Peterbilt 389 is a significant investment with substantial ongoing costs. Insurance premiums for Class 8 trucks are considerable, reflecting the vehicle's value and risk. Fuel costs are a primary expense, with mileage dictated by its PACCAR MX-13 or similar engine and its heavy-duty application. Maintenance and repair costs are also high due to the specialized nature of components and the demanding operational environment; routine services and unexpected repairs can be costly. Overall, the 389 is not an economical vehicle to own in terms of day-to-day running costs but offers value through its long service life, reliability, and strong resale, making it a costly, but often justifiable, business asset.
2018 Peterbilt 389 Fuel Efficiency
Fuel Type
Diesel
Fuel Capacity
-
City Mileage
-
Highway Mileage
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2018 Peterbilt 389 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
2018 Peterbilt 389 Insurance
Insurance for a 2018 Peterbilt 389 is moderately priced, reflecting its status as a Truck with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2018 Peterbilt 389 Compare to Other Truck?
The 2018 Peterbilt 389 competes in the high-end vocational and long-haul truck segment, primarily against rivals like the Kenworth W900L/T880, International LoneStar, and Freightliner Coronado/Cascadia.
Performance: In terms of performance, the 389, equipped with PACCAR MX-13 engines, offers competitive power and torque, comparable to similar offerings from Cummins and Detroit Diesel found in other brands. Its hauling capability is robust, and its powertrain integration is highly regarded for durability.
Features: When it comes to features, the Peterbilt 389, especially the 389, leans heavily on its classic styling and customization. Rivals like the International LoneStar offered more contemporary interior designs and potentially more integrated tech features for 2018, while the Freightliner Cascadia (though a more aerodynamic, modern design) might offer a wider array of factory-installed driver-assistance technologies. Kenworth models, particularly the W900L, are very similar in their traditional appeal and customization options to the Peterbilt 389.
Reliability: Peterbilt and Kenworth (both PACCAR brands) generally share a strong reputation for build quality and long-term reliability, often considered top-tier. International has made strides but historically might lag slightly in perceived long-term durability. Freightliner, while a dominant player, can have varied reliability reports depending on the specific model and configuration.
Price: The 389, due to its premium branding and classic appeal, typically commands a higher price point both new and used compared to some competitors, especially if equipped with premium customizations.
Alternatives:
Performance: In terms of performance, the 389, equipped with PACCAR MX-13 engines, offers competitive power and torque, comparable to similar offerings from Cummins and Detroit Diesel found in other brands. Its hauling capability is robust, and its powertrain integration is highly regarded for durability.
Features: When it comes to features, the Peterbilt 389, especially the 389, leans heavily on its classic styling and customization. Rivals like the International LoneStar offered more contemporary interior designs and potentially more integrated tech features for 2018, while the Freightliner Cascadia (though a more aerodynamic, modern design) might offer a wider array of factory-installed driver-assistance technologies. Kenworth models, particularly the W900L, are very similar in their traditional appeal and customization options to the Peterbilt 389.
Reliability: Peterbilt and Kenworth (both PACCAR brands) generally share a strong reputation for build quality and long-term reliability, often considered top-tier. International has made strides but historically might lag slightly in perceived long-term durability. Freightliner, while a dominant player, can have varied reliability reports depending on the specific model and configuration.
Price: The 389, due to its premium branding and classic appeal, typically commands a higher price point both new and used compared to some competitors, especially if equipped with premium customizations.
Alternatives:
- Similar: The Kenworth W900L is the most direct competitor, offering a nearly identical philosophy of classic styling, robust build, and extensive customization, often appealing to the same buyer.
- Alternative (Modern): If a more aerodynamic and technologically advanced truck is desired, the Freightliner Cascadia is a strong alternative, offering better fuel efficiency and more modern driver aids, though it sacrifices the iconic classic aesthetic.
- Alternative (Value): For those prioritizing a balance of performance and potentially better value on the used market, a well-maintained International LoneStar could be considered, offering a blend of modern design with traditional truck power.
Final Verdict: Is the 2018 Peterbilt 389 a Good Truck?
The 2018 Peterbilt 389 is ideally suited for owner-operators and fleet managers who prioritize classic styling, robust build quality, and proven durability in a heavy-duty truck. It's an excellent choice for those who value brand prestige and the iconic look of a traditional semi-truck. While its initial cost and potentially higher running expenses make it less economical for purely cost-driven operations, its long-term reliability, strong resale value, and the pride of ownership it offers make it a worthwhile investment for many.
Buying a used 2018 Peterbilt 389 is often the most practical approach, offering significant value compared to its new price. It's worth buying, especially if you can find a well-maintained example with lower mileage and desirable specifications. Specific trims with high-quality sleeper options are ideal for long-haul drivers seeking comfort. Thorough inspection and a solid maintenance history are crucial when considering a used purchase.
Buying a used 2018 Peterbilt 389 is often the most practical approach, offering significant value compared to its new price. It's worth buying, especially if you can find a well-maintained example with lower mileage and desirable specifications. Specific trims with high-quality sleeper options are ideal for long-haul drivers seeking comfort. Thorough inspection and a solid maintenance history are crucial when considering a used purchase.
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.