The 2015 Peterbilt 388 is a Class 8 conventional truck, part of Peterbilt's long-standing legacy of producing high-quality, durable commercial vehicles. Primarily known for its robust construction and iconic styling, the 388 was produced for many years, with the 2015 model representing a well-established iteration. It typically featured a conventional cab body style. While specific trims were often highly customizable for fleet or owner-operator needs, the 388's popularity stems from its blend of classic Peterbilt aesthetics, reliability, and powerful performance. Pricing for a 2015 model in the used market varies significantly based on condition, mileage, and specifications.
The Good
The 2015 Peterbilt 388 offers exceptional performance and legendary reliability, crucial for demanding work. Its iconic design appeals emotionally to drivers, while the comfortable cabin and practical features ensure efficiency and long-term value, making it a smart investment.
The Bad
While generally robust, potential weaknesses for the 2015 Peterbilt 388 can include the age-related wear and tear on components like the suspension and exhaust systems. Older electronics or HVAC systems might require attention, and thorough inspection for rust on the chassis is advised.
2015 Peterbilt 388: Quick Overview
- Engine Options: The 2015 Peterbilt 388 was typically equipped with powerful PACCAR PX-9 or Cummins ISX engines. These are heavy-duty diesel engines designed for demanding vocational and over-the-road applications.
- PACCAR PX-9: Known for its durability and efficiency in medium-heavy duty applications.
- Cummins ISX: A more powerful option often chosen for long-haul trucking, offering higher torque and horsepower.
- Horsepower: Horsepower ratings varied significantly based on the specific engine model and configuration. They commonly ranged from approximately 380 horsepower to over 600 horsepower, catering to diverse hauling needs.
- Typical range: 380 - 600+ HP
- Fuel Economy: Fuel economy for Class 8 trucks like the Peterbilt 388 is measured in miles per gallon (MPG) but is highly dependent on load, terrain, driving style, and specific engine tune. Generally, these trucks achieve between 4 to 8 MPG.
- Estimated range: 4-8 MPG
- 0-60 Times: 0-60 mph (or 0-97 km/h) acceleration times are not a primary performance metric for heavy-duty trucks and are highly variable, depending on the total gross vehicle weight rating (GVWR) and load. For a fully loaded truck, this can range from 30 seconds to over a minute.
- Highly variable, not a standard metric
- Towing Capacity: The towing capacity is determined by the Gross Combination Weight Rating (GCWR), which is a combination of the truck's GVWR and the trailer's GVWR. Peterbilt 388 models are designed for heavy-duty applications and can handle GCWRs well in excess of 80,000 pounds, often up to 100,000 pounds or more, depending on configuration and road regulations.
- Typically rated for GCWRs of 80,000 lbs+
- Trim-Level Features: Peterbilt trucks are highly customizable, so specific trim features varied greatly based on the original buyer's specifications. However, common features and options included:
- Cab Options: Day cabs, extended day cabs, and various sleeper configurations (e.g., 40-inch, 60-inch, 72-inch sleepers) offering amenities for long-haul drivers.
- Interior Amenities: Comfortable seating (air-ride), ergonomic dashboards, advanced climate control, infotainment systems (often aftermarket in older models), and ample storage.
- Chassis and Suspension: Robust frame rails, various axle configurations (single, tandem, tridem), and suspension systems (e.g., Peterbilt Air Trac, Hendrickson) to suit different vocational needs and load capacities.
- Braking Systems: Advanced air brake systems, often with ABS.
- Electrical Systems: Heavy-duty electrical systems designed to power numerous accessories and auxiliary equipment.
- Exterior Styling: Iconic Peterbilt grille, polished chrome accents, and various aerodynamic options.
- Optional Equipment: Auxiliary power units (APUs), satellite radio, advanced navigation, custom lighting, and specialized PTOs (Power Take-Offs) for vocational applications.
- Cab Options: Day cabs, extended day cabs, and various sleeper configurations (e.g., 40-inch, 60-inch, 72-inch sleepers) offering amenities for long-haul drivers.
2015 Peterbilt 388 Specifications
Vehicle Information
| Year | 2015 |
| Make | Peterbilt |
| Model | 388 |
| 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 2015 Peterbilt 388 Have?
The 2015 Peterbilt 388, being a robust heavy-duty truck, generally exhibits excellent long-term reliability. However, as with any vehicle, especially those operating under demanding conditions, certain issues can arise over time. One of the most common areas of concern for trucks of this age and class is related to wear and tear on powertrain components. While the PACCAR PX-9 and Cummins ISX engines are known for their durability, issues like turbocharger problems, EGR cooler leaks, or injector failures can occur, particularly with high mileage or inconsistent maintenance.
The transmission, often an Eaton Fuller manual or an automatic option, can also experience wear. Clutch wear, synchro issues in manual transmissions, or torque converter problems in automatics are not uncommon after hundreds of thousands of miles. The exhaust gas recirculation (EGR) system, a common component in modern diesel engines to reduce emissions, can be prone to clogging or component failure, leading to reduced performance and check engine lights. Diesel Particulate Filters (DPFs) also require regular maintenance and can become clogged, necessitating regeneration cycles or replacement.
Other frequently reported areas include suspension components such as air springs, shocks, and bushings, which can degrade over time and lead to a rougher ride or alignment issues. Electrical systems, while generally robust, can develop minor issues such as faulty sensors, problems with the dashboard instrumentation, or issues with aftermarket installed accessories. HVAC systems can also be a source of concern, with common issues including refrigerant leaks, blower motor failures, or control module malfunctions, especially in warmer climates.
Recalls for Peterbilt trucks are typically issued by the manufacturer for specific component defects or safety-related issues. For a 2015 model year, specific recalls would need to be checked against the VIN through official Peterbilt or NHTSA databases. However, general recalls for heavy-duty trucks can sometimes involve issues with braking systems, steering components, or emissions control systems. Long-term reliability is heavily influenced by the owner's maintenance regimen. Consistent adherence to scheduled maintenance, using high-quality fluids and parts, and addressing minor issues promptly are crucial for ensuring the longevity and minimizing major repairs on a 2015 Peterbilt 388.
The transmission, often an Eaton Fuller manual or an automatic option, can also experience wear. Clutch wear, synchro issues in manual transmissions, or torque converter problems in automatics are not uncommon after hundreds of thousands of miles. The exhaust gas recirculation (EGR) system, a common component in modern diesel engines to reduce emissions, can be prone to clogging or component failure, leading to reduced performance and check engine lights. Diesel Particulate Filters (DPFs) also require regular maintenance and can become clogged, necessitating regeneration cycles or replacement.
Other frequently reported areas include suspension components such as air springs, shocks, and bushings, which can degrade over time and lead to a rougher ride or alignment issues. Electrical systems, while generally robust, can develop minor issues such as faulty sensors, problems with the dashboard instrumentation, or issues with aftermarket installed accessories. HVAC systems can also be a source of concern, with common issues including refrigerant leaks, blower motor failures, or control module malfunctions, especially in warmer climates.
Recalls for Peterbilt trucks are typically issued by the manufacturer for specific component defects or safety-related issues. For a 2015 model year, specific recalls would need to be checked against the VIN through official Peterbilt or NHTSA databases. However, general recalls for heavy-duty trucks can sometimes involve issues with braking systems, steering components, or emissions control systems. Long-term reliability is heavily influenced by the owner's maintenance regimen. Consistent adherence to scheduled maintenance, using high-quality fluids and parts, and addressing minor issues promptly are crucial for ensuring the longevity and minimizing major repairs on a 2015 Peterbilt 388.
How long will the 2015 Peterbilt 388 last?
The 2015 Peterbilt 388 is built for longevity, and with proper maintenance, it's not uncommon for these trucks to serve for 10 to 15 years or more, accumulating well over 1 million miles. Many owner-operators and fleet managers rely on Peterbilts for their robust construction and ability to withstand demanding conditions. Long-term durability is a hallmark; however, weaknesses can emerge with age and mileage. Critical components like the engine, transmission, and drivetrain are designed to be rebuilt, extending their service life significantly. Routine maintenance, including oil changes, filter replacements, and regular inspections, is paramount. Over time, expect potential wear on suspension components, brake systems, and electrical harnesses. The chassis is exceptionally durable, but cosmetic issues like rust can appear in harsh climates. Overall, the 388 demonstrates exceptional long-term durability, with its main vulnerabilities being age-related wear on serviceable parts rather than fundamental design flaws.
What Technology & Safety Features are Included?
The 2015 Peterbilt 388, while prioritizing ruggedness and operational efficiency, offered a range of technology, driver-assistance, and safety features, with many being optional to cater to specific operational needs and driver preferences. Standard features often included a robust electrical system designed to power various accessories and diagnostic tools. The dashboard typically featured clear, analog gauges and essential warning lights, prioritizing functionality over elaborate digital displays. An integrated HVAC system was standard, providing climate control for driver comfort during long hauls.
Technology and entertainment options were often modular or aftermarket installations. This could include basic AM/FM radios, CD players, and provision for CB radios. More advanced infotainment systems, including touchscreens, Bluetooth connectivity, and navigation, were available as options or installed by owners post-purchase to suit individual requirements. Driver-assistance features were not as comprehensive as in modern light-duty vehicles but could include options like cruise control for ease on long stretches of highway. Some models might have offered advanced diagnostics for engine and system monitoring, crucial for preventative maintenance and troubleshooting.
Safety features were centered around the truck's inherent structural integrity. Peterbilt trucks are known for their strong chassis and cab construction, designed to withstand significant forces. Standard safety equipment typically included hydraulic power steering, heavy-duty air brakes with ABS (Anti-lock Braking System), and standard lighting (headlights, taillights, turn signals). Optional safety features could extend to enhanced visibility aids like additional mirrors, fog lights, and sometimes forward-looking radar systems for collision mitigation in more advanced configurations, though these were less common on the 388 compared to newer models.
Crash-test ratings for heavy-duty commercial trucks like the Peterbilt 388 are not conducted in the same manner as passenger vehicles by organizations like NHTSA or IIHS. The focus is on structural integrity and occupant protection under extreme conditions, which Peterbilt designs for through robust frame and cab construction. The inherent size and mass of the vehicle provide significant protection. However, the emphasis in safety for such trucks is more on driver training, operational safety protocols, and features that prevent accidents, such as reliable braking and lighting systems, rather than passive crash-test performance metrics.
Technology and entertainment options were often modular or aftermarket installations. This could include basic AM/FM radios, CD players, and provision for CB radios. More advanced infotainment systems, including touchscreens, Bluetooth connectivity, and navigation, were available as options or installed by owners post-purchase to suit individual requirements. Driver-assistance features were not as comprehensive as in modern light-duty vehicles but could include options like cruise control for ease on long stretches of highway. Some models might have offered advanced diagnostics for engine and system monitoring, crucial for preventative maintenance and troubleshooting.
Safety features were centered around the truck's inherent structural integrity. Peterbilt trucks are known for their strong chassis and cab construction, designed to withstand significant forces. Standard safety equipment typically included hydraulic power steering, heavy-duty air brakes with ABS (Anti-lock Braking System), and standard lighting (headlights, taillights, turn signals). Optional safety features could extend to enhanced visibility aids like additional mirrors, fog lights, and sometimes forward-looking radar systems for collision mitigation in more advanced configurations, though these were less common on the 388 compared to newer models.
Crash-test ratings for heavy-duty commercial trucks like the Peterbilt 388 are not conducted in the same manner as passenger vehicles by organizations like NHTSA or IIHS. The focus is on structural integrity and occupant protection under extreme conditions, which Peterbilt designs for through robust frame and cab construction. The inherent size and mass of the vehicle provide significant protection. However, the emphasis in safety for such trucks is more on driver training, operational safety protocols, and features that prevent accidents, such as reliable braking and lighting systems, rather than passive crash-test performance metrics.
What Colors Options are Available?
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2015 Peterbilt 388 Prices and Market Value
When new, the 2015 Peterbilt 388 would have had a substantial price tag, typically ranging from $100,000 to $200,000 or more, depending heavily on the specific configuration, engine, transmission, sleeper options, and vocational outfitting. As a used vehicle today, the 2015 Peterbilt 388 represents a significant investment, with prices varying widely based on mileage, condition, maintenance history, engine and transmission type, and overall specifications. Expect prices to range from approximately $40,000 to $90,000+. Depreciation is relatively slow for well-maintained, high-quality heavy-duty trucks like Peterbilts, especially compared to lighter vehicles. Factors affecting resale value include engine hours and mileage (lower is better), overall cosmetic and mechanical condition, the presence of desirable options (like larger sleepers or specific vocational equipment), and market demand. Trucks with comprehensive maintenance records and those used in less demanding applications tend to hold their value better.
2015 Peterbilt 388 Cost of Ownership
Owning a 2015 Peterbilt 388 involves significant operating costs. Insurance premiums will be substantial due to the high value and operational risk. Fuel costs are a major factor, as these heavy-duty diesel engines consume considerable fuel, typically 4-8 MPG, making fuel efficiency a key consideration. Maintenance is an ongoing expense, requiring regular oil changes, filter replacements, and component checks. Repairs can be costly due to the specialized nature of heavy-duty components and labor rates. While a robust and durable truck, the overall ownership experience is generally considered costly rather than economical, primarily driven by fuel, insurance, and potential for expensive component repairs over its long service life.
2015 Peterbilt 388 Fuel Efficiency
Fuel Type
Diesel
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
2015 Peterbilt 388 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
2015 Peterbilt 388 Insurance
Insurance for a 2015 Peterbilt 388 is moderately priced, reflecting its status as a Truck with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2015 Peterbilt 388 Compare to Other Truck?
The 2015 Peterbilt 388 competes in the demanding Class 8 heavy-duty truck segment against formidable rivals such as Kenworth (e.g., T680, T880), Freightliner (e.g., Cascadia), and Volvo (e.g., VNL). In terms of performance, the Peterbilt 388, typically powered by PACCAR PX-9 or Cummins ISX engines, offers robust power and torque suitable for heavy hauling and vocational applications, often comparable to or exceeding offerings from its competitors, especially in its configurations designed for raw pulling power.
When it comes to features, Peterbilt has traditionally focused on driver comfort and build quality. While the 388 might not have offered the cutting-edge, integrated technology found in some newer models from competitors in 2015, it excelled in providing a durable, functional, and customizable cabin. Kenworth trucks often share a similar philosophy of robust construction and driver focus. Freightliner, particularly the Cascadia, often aims for a balance of efficiency and technology, sometimes offering more integrated digital features. Volvo trucks are known for their aerodynamic designs and advanced safety systems.
Reliability is where Peterbilt truly shines. The brand has a long-standing reputation for building extremely durable and dependable trucks that are designed for longevity and ease of maintenance. Competitors like Kenworth also boast excellent reliability. Freightliner and Volvo offer reliable vehicles, but Peterbilt and Kenworth are often perceived to have a slight edge in sheer ruggedness and longevity, particularly in severe vocational use. However, this often comes at a premium.
Price-wise, Peterbilts are generally positioned at the higher end of the market when new, reflecting their premium build quality and brand prestige. Competitors like Freightliner may offer more budget-friendly options in certain configurations. Used market prices for a 2015 Peterbilt 388 will reflect its reputation for durability, often commanding strong prices relative to mileage and condition compared to some rivals.
Alternatives:
For buyers prioritizing ruggedness, classic styling, and proven long-term durability, the 2015 Peterbilt 388 remains an excellent choice. If cutting-edge technology or maximum fuel efficiency in long-haul applications are paramount, newer models or specific configurations from Freightliner or Volvo might be considered.
When it comes to features, Peterbilt has traditionally focused on driver comfort and build quality. While the 388 might not have offered the cutting-edge, integrated technology found in some newer models from competitors in 2015, it excelled in providing a durable, functional, and customizable cabin. Kenworth trucks often share a similar philosophy of robust construction and driver focus. Freightliner, particularly the Cascadia, often aims for a balance of efficiency and technology, sometimes offering more integrated digital features. Volvo trucks are known for their aerodynamic designs and advanced safety systems.
Reliability is where Peterbilt truly shines. The brand has a long-standing reputation for building extremely durable and dependable trucks that are designed for longevity and ease of maintenance. Competitors like Kenworth also boast excellent reliability. Freightliner and Volvo offer reliable vehicles, but Peterbilt and Kenworth are often perceived to have a slight edge in sheer ruggedness and longevity, particularly in severe vocational use. However, this often comes at a premium.
Price-wise, Peterbilts are generally positioned at the higher end of the market when new, reflecting their premium build quality and brand prestige. Competitors like Freightliner may offer more budget-friendly options in certain configurations. Used market prices for a 2015 Peterbilt 388 will reflect its reputation for durability, often commanding strong prices relative to mileage and condition compared to some rivals.
Alternatives:
- Kenworth T680/T880: Very similar in terms of build quality, reliability, and driver comfort. Often considered direct competitors with comparable performance and value.
- Freightliner Cascadia: A strong contender offering a blend of efficiency, technology, and value. May be more fuel-efficient or offer newer tech in comparable model years.
- Volvo VNL: Known for aerodynamics and comfort, potentially offering better fuel economy in long-haul applications, but might be perceived as less rugged for severe vocational use.
For buyers prioritizing ruggedness, classic styling, and proven long-term durability, the 2015 Peterbilt 388 remains an excellent choice. If cutting-edge technology or maximum fuel efficiency in long-haul applications are paramount, newer models or specific configurations from Freightliner or Volvo might be considered.
Final Verdict: Is the 2015 Peterbilt 388 a Good Truck?
The 2015 Peterbilt 388 is an ideal choice for owner-operators and vocational fleets who prioritize exceptional durability, iconic styling, and proven reliability in demanding applications. It is certainly worth buying, particularly in the used market, where it represents a significant value proposition for its longevity and robust build. This truck is best purchased used, as new models are prohibitively expensive. It is particularly well-suited for those who can perform or access good maintenance, as consistent care will maximize its already impressive lifespan. For long-haul trucking, ensuring it has a comfortable sleeper configuration is key. For vocational use, focus on models with appropriate chassis and drivetrain specifications. It offers a classic blend of performance and enduring quality that remains highly sought after.
Drew B
Drew is a seasoned automotive expert and contributor to VinCheck.info. With nearly 15 years of experience as a former Porsche technician, he brings a wealth of hands-on knowledge to his writing. Born in North Carolina, a region renowned for its deep-rooted NASCAR culture, Drew developed a passion for cars early in life, often building and working on vehicles from a young age. At VINCheck, Drew leverages his extensive technical background to provide in-depth analyses of various vehicles. His articles often focus on engine performance, reliability, and maintenance insights, offering readers practical information grounded in real-world experience. Some of his notable contributions include reviews on the Mazda CX-5's longevity and detailed examinations of engine options for models like the 2011 Toyota Camry and Tacoma