The 2011 Peterbilt 384 is a Class 8 truck known for its versatility and robust construction. Primarily a vocational truck, it was produced from 2007 through 2016, with the 384 designation typically referring to its day cab configuration. It stands out due to its strong chassis, customizable options, and the renowned Peterbilt reputation for durability and driver comfort, making it a popular choice for heavy-duty applications.
The Good
The 2011 Peterbilt 384 boasts impressive performance for demanding jobs, legendary reliability that minimizes downtime, and a driver-focused cab for enhanced comfort on long hauls. Its robust design inspires confidence, while its value proposition lies in its longevity and strong resale. It's a truck that works hard and feels good to operate.
The Bad
Potential weaknesses for the 2011 Peterbilt 384 include the possibility of rust on the frame or cab components in certain climates, and like any heavy-duty truck of this age, wear and tear on the drivetrain and suspension components are common. Electrical system glitches can also arise with age.
2011 Peterbilt 384: Quick Overview
- Engine Options: The 2011 Peterbilt 384 was typically equipped with powerful PACCAR PX-8, PX-9, or Cummins ISX engines. Specific engine choices would vary based on the vocational application and customer specifications.
- Horsepower: Horsepower ratings commonly ranged from approximately 260 hp up to over 500 hp, depending on the engine model selected. Higher horsepower variants were generally paired with larger displacement engines for maximum torque and pulling power.
- Fuel Economy: Fuel economy for a Class 8 vocational truck like the 384 is highly dependent on the specific engine, transmission, axle ratio, load, terrain, and driving style. It is not typically measured in MPG like a passenger car but rather in gallons per mile or miles per gallon at a specific load. A reasonable expectation for a well-maintained 384 might fall between 5-7 MPG under optimal conditions.
- 0-60 Times: 0-60 mph times are not a relevant or typically measured metric for Class 8 vocational trucks. Their focus is on torque and load-carrying capacity, not acceleration for passenger vehicles.
- Towing Capacity: The towing capacity is a primary consideration and varies significantly based on the truck's configuration, including its Gross Vehicle Weight Rating (GVWR) and Gross Combination Weight Rating (GCWR). The 384 is designed for heavy-duty towing, with capacities often exceeding 50,000 lbs, suitable for various vocational tasks such as dump trucks, refuse trucks, and heavy haul applications.
- Trim-Level Features: As a vocational truck, the 384 did not have traditional trim levels like passenger vehicles. Instead, features were dictated by the vocational package and optional equipment selected by the buyer. Common features included robust chassis options, various wheelbase configurations, specialized transmissions (e.g., automatic or manual), air brake systems, heavy-duty suspension, and an array of PTO (Power Take-Off) options. The interior focused on functionality and durability, with comfortable seating, clear instrumentation, and often basic amenities. Optional features could include enhanced climate control, upgraded audio systems, and improved driver ergonomics.
2011 Peterbilt 384 Specifications
Vehicle Information
| Year | 2011 |
| Make | Peterbilt |
| Model | 384 |
| 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 | 12.0L L6 DIESEL |
| Engine Size | 12L |
| 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 | - |
Vehicle History Report
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Analysis
What Problems Does the 2011 Peterbilt 384 Have?
For a 2011 Peterbilt 384, commonly reported issues tend to be related to the inherent nature of heavy-duty trucks that have seen significant service. Owners often report normal wear and tear on suspension components, including leaf springs and shock absorbers, especially if the truck has been used for demanding vocational applications. The braking system, while robust, may require regular maintenance, including potential issues with air brake components if not properly serviced. Drivetrain elements, such as the transmission and differential, can experience wear over time, leading to noises or performance issues, particularly if maintenance intervals have been neglected. Some owners have noted potential for electrical gremlins, which can manifest as intermittent issues with lights, sensors, or dashboard components as the wiring harnesses age and accumulate miles. Exhaust Gas Recirculation (EGR) system problems are also a known concern for many diesel engines of this era, which can lead to reduced power and increased emissions. Radiator and cooling system leaks can occur as seals age and components develop fatigue. Regarding specific recalls for the 2011 model year, it is crucial for any prospective buyer to check the National Highway Traffic Safety Administration (NHTSA) database using the truck's VIN. Recalls can be issued for various reasons, from fuel system anomalies to potential braking system defects. Long-term reliability is generally considered high for Peterbilt trucks, but it is heavily contingent on consistent and thorough maintenance. Neglecting routine inspections, fluid changes, and component replacements will inevitably lead to more significant and costly repairs over time. The robustness of the chassis and cab structure typically holds up well, but external factors like exposure to salt and harsh weather can accelerate corrosion on the frame and body panels.
How long will the 2011 Peterbilt 384 last?
Based on owner data and typical vocational usage, a 2011 Peterbilt 384, with diligent maintenance, can realistically achieve between 750,000 to over 1,200,000 miles or more of service life. Many of these trucks are used for applications that rack up mileage quickly. Long-term durability is a strong suit, attributed to Peterbilt's robust engineering and heavy-duty components. However, weaknesses that can emerge over time include increased potential for corrosion on the frame and cab, especially in areas with harsh winters. Wear on drivetrain components, such as the transmission, engine accessories, and suspension, is inevitable. The electrical system, while generally reliable, can develop minor issues with age. Proper, consistent maintenance is the most significant factor in maximizing its lifespan and mitigating these potential weaknesses.
What Technology & Safety Features are Included?
The 2011 Peterbilt 384, as a vocational truck, prioritizes functionality and safety over advanced infotainment and driver-assistance systems commonly found in modern passenger vehicles. Built-in technology primarily revolves around essential operational data. The dashboard features clear, analog gauges displaying critical information like engine RPM, speed, oil pressure, coolant temperature, and air brake pressure. A basic trip computer might be present to track fuel consumption and distance. Entertainment options are typically limited to an aftermarket radio or CB radio, as factory-installed premium audio systems were not standard. Driver-assistance features are minimal; the focus is on driver awareness and control. Features like power steering are standard, and depending on the configuration, ABS (Anti-lock Braking System) is usually included for enhanced braking control, especially under load or on slippery surfaces. Mirrors are large and strategically placed to maximize visibility. Safety features are robust, centered around the truck's inherent structural integrity. The cab is designed for durability and protection in case of an accident. Standard safety equipment includes seatbelts, robust lighting systems (headlights, taillights, turn signals), and sturdy construction. Optional safety features might include enhanced mirror configurations or specialized lighting for low-visibility work environments. Crash-test ratings are not typically published for heavy-duty commercial trucks like the Peterbilt 384 in the same way they are for passenger cars and SUVs by organizations like the NHTSA or IIHS. The design and engineering are geared towards meeting stringent commercial vehicle safety standards and regulations related to load capacity, stability, and driver protection in commercial operational scenarios.
What Colors Options are Available?
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2011 Peterbilt 384 Prices and Market Value
When new, the 2011 Peterbilt 384's price would have varied significantly based on its specific configuration, engine, and vocational options, but typically ranged from approximately $120,000 to over $200,000. Current used market prices for a 2011 Peterbilt 384 can range widely, from around $40,000 to $80,000 or more, heavily dependent on mileage, condition, engine hours, and specific vocational equipment. Depreciation is relatively slow for well-maintained Peterbilts due to their reputation for durability and longevity. Factors affecting resale value include overall mechanical condition, maintenance history, appearance (rust, body damage), engine and transmission health, and the presence of desirable vocational upfits. Trucks with lower mileage and in excellent working order command the highest prices.
2011 Peterbilt 384 Cost of Ownership
Owning a 2011 Peterbilt 384 is generally considered costly, but with a strong return on investment for commercial use. Insurance premiums will be substantial due to its classification and value. Fuel costs are a major ongoing expense, dependent on mileage and diesel prices, though efficient driving can mitigate this. Maintenance and repairs are where significant costs can accrue; regular, preventative maintenance is essential to avoid larger, more expensive issues down the line. While individual repairs can be costly, its long-term durability often offsets these by providing years of service. It is not an economical vehicle to own for personal use but can be a very profitable asset for businesses.
2011 Peterbilt 384 Fuel Efficiency
Fuel Type
Diesel
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
2011 Peterbilt 384 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
2011 Peterbilt 384 Insurance
Insurance for a 2011 Peterbilt 384 is moderately priced, reflecting its status as a Truck with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2011 Peterbilt 384 Compare to Other Truck?
The 2011 Peterbilt 384 competes in the heavy-duty vocational truck segment against formidable rivals such as the Kenworth T800, Freightliner Coronado, and International WorkStar. In terms of performance, the 384 generally offers robust powertrains and strong towing capabilities, comparable to its peers. Peterbilt is often lauded for its superior ride quality and driver comfort, giving it an edge in operator satisfaction compared to some competitors which might prioritize raw utility. Features are generally utilitarian across all these trucks, focused on vocational needs rather than luxury. The Peterbilt 384 typically excels in reliability, benefiting from Peterbilt's reputation for durable construction and proven components. While Kenworth trucks are also known for their exceptional reliability, some International or Freightliner models of this era might have had a slightly higher incidence of reported issues, though this can vary greatly with specific configurations and maintenance. Price-wise, new Peterbilts were premium offerings, and this often translates to a strong used market value, meaning a 2011 Peterbilt 384 might carry a higher price tag than a comparable Freightliner or International. Alternatives that are similar in purpose and capability include the Kenworth T800, which is a very direct competitor known for its durability and resale value. The Freightliner M2 series or a heavier-duty Freightliner model would also be a comparable option, often offering a wider range of configurations and potentially a lower entry price on the used market. The International WorkStar is another strong contender, particularly for severe-service applications. When considering alternatives, a buyer should weigh the Peterbilt's reputation for driver comfort and build quality against potential cost savings or specific feature advantages offered by its rivals. For a premium vocational truck with excellent long-term value, the 384 remains a top-tier choice, with the Kenworth T800 being its closest and most direct competitor.
Final Verdict: Is the 2011 Peterbilt 384 a Good Truck?
The 2011 Peterbilt 384 is ideal for businesses and owner-operators who require a durable, reliable, and comfortable heavy-duty vocational truck for demanding applications such as construction, refuse collection, or heavy hauling. It is worth buying if the primary goal is long-term utility and operational efficiency, rather than the latest technology. Given its age, purchasing used is the only viable option. Buyers should prioritize trucks with comprehensive maintenance records and those that have been well cared for, ideally from less corrosive environments. While it may not have the modern amenities, its robust build quality and renowned Peterbilt engineering make it a sound investment for those focused on performance and longevity over creature comforts.
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.