The 2011 International ProStar is a Class 8 semi-truck known for its aerodynamic design and driver-focused features. Introduced in the late 2000s, it has been a popular choice for owner-operators and fleets alike. Key trims often revolve around engine and interior configurations, with pricing varying significantly based on customization and used market conditions. Its popularity stems from a blend of fuel efficiency, driver comfort, and a distinct, modern exterior appearance.
The Good
The 2011 ProStar offers impressive fuel efficiency and a comfortable, quiet cabin that appeals to drivers on long hauls. Its modern design is a point of pride, while its robust performance and potential for reliability offer practical value and peace of mind for operators.
The Bad
Potential weaknesses for the 2011 ProStar include the complexity of its advanced emissions systems, which can lead to costly repairs. Some owners have reported issues with electrical components and certain interior fit and finish aspects over time. Regular maintenance is crucial to mitigate these.
2011 International Prostar: Quick Overview
- Engine Options: The 2011 International ProStar typically came equipped with Cummins ISX or International MaxxForce engines. Common options included the Cummins ISX15 and various International MaxxForce 11, 13, and 15-liter engines. These engines were designed for heavy-duty applications and varying performance needs.
- Horsepower: Horsepower ratings varied significantly based on the specific engine chosen. For the Cummins ISX15, power output generally ranged from around 400 to over 600 horsepower. International MaxxForce engines also offered a broad spectrum of power, typically from the mid-400s to over 500 horsepower, catering to different hauling requirements.
- Fuel Economy: Fuel economy is a critical factor for a truck of this class. While exact MPG figures are highly dependent on load, terrain, driving habits, and specific engine configuration, the ProStar was designed with aerodynamics and efficient powertrains to maximize fuel efficiency. Owners often reported figures in the range of 5-7 MPG under typical highway hauling conditions, with some achieving higher under optimal circumstances due to its aerodynamic design.
- 0-60 Times: For a Class 8 truck, traditional 0-60 mph acceleration times are not a primary performance metric and are generally not published. The focus is on sustained power and torque for hauling heavy loads, not rapid acceleration.
- Towing Capacity: As a Class 8 truck, the 2011 International ProStar is designed for heavy-duty towing. Its towing capacity is substantial, typically rated for Gross Combination Weights (GCW) of up to 80,000 lbs or more, depending on the chassis configuration, axle ratings, and specific drivetrain components. This makes it suitable for hauling large trailers and heavy freight.
- Trim-Level Features: Key trims and features often focused on driver comfort and productivity. This included various cab configurations (e.g., day cab, flat-top sleeper, extended sleeper), premium interior options with upgraded materials and amenities, advanced driver information displays, ergonomic seating, and enhanced climate control systems. Optional features could include advanced navigation, premium sound systems, and auxiliary power units.
2011 International Prostar Specifications
Vehicle Information
| Year | 2011 |
| Make | International |
| Model | Prostar |
| Trim | - |
| Style | - |
| Type | Truck |
| Category | Le657 |
Manufacturing Details
| Made In | Mexico |
| Manufacturing City | GARLAND |
Dimensions
| Doors | - |
| Curb Weight | - |
| Gross Vehicle Weight Rating | 33001 pounds |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 13.0-L L-6 Diesel |
| Engine Size | 13L |
| 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 2011 International Prostar Have?
The 2011 International ProStar, like many heavy-duty trucks of its era, can experience certain issues that are important for prospective buyers to be aware of. One of the most significant concerns revolves around the emissions control systems, particularly the diesel particulate filters (DPFs) and selective catalytic reduction (SCR) systems, which became more stringent around this model year. These systems can be prone to clogging or malfunction, leading to expensive repairs and potential downtime if not properly maintained. Issues with the Exhaust Gas Recirculation (EGR) system are also frequently reported, often resulting in reduced engine performance and increased emissions.
Another area of concern for some owners is the reliability of the electrical system. While generally robust, complex wiring harnesses and numerous sensors can sometimes develop faults, leading to intermittent issues or diagnostic trouble codes. Specific components like alternators, starter motors, and various sensors might require replacement over time. The advanced electronic control modules (ECMs) also present a potential point of failure, although these are often repairable.
International's own MaxxForce engines, particularly the 11L and 13L models, have historically had mixed reviews regarding long-term reliability compared to some competitors. While many units perform well, some owners have reported issues with internal engine components or fuel system problems. It's worth noting that the 2011 model year falls within a period where some of these engine platforms were still being refined. Recalls for this model year and surrounding years have primarily focused on safety-related aspects, such as potential issues with braking systems, steering components, or electrical wiring that could pose a fire risk. It is always advisable to check for any outstanding recalls with the manufacturer or NHTSA.
Long-term reliability is heavily influenced by maintenance. Trucks that have been meticulously maintained according to manufacturer recommendations, with regular fluid changes, filter replacements, and prompt attention to any warning lights, tend to be more reliable than those that have been neglected. The sheer mileage and demanding operational environments these trucks endure mean that wear and tear on components like the transmission, drivetrain, and suspension are inevitable and require ongoing inspection and service.
How long will the 2011 International Prostar last?
Estimating the average mileage and years of service for a 2011 International ProStar depends heavily on its operational use and maintenance regimen. Trucks used for long-haul freight can easily accumulate 100,000 to 150,000 miles per year. Therefore, a 2011 model that is 13 years old could have anywhere from 1.3 million to nearly 2 million miles. With proper and consistent maintenance, including timely oil changes, filter replacements, and proactive part replacements before failure, these trucks are designed for significant longevity. The long-term durability of the core components like the engine and transmission is generally good, especially with Cummins engines. However, weaknesses can emerge over time, particularly with complex emissions systems and electrical components, as these can become more prone to issues with age and accumulated mileage. Weaknesses in the emissions system, for instance, can become a recurring and costly problem if not addressed proactively. Conversely, a well-maintained ProStar can continue to serve reliably for many years and hundreds of thousands of miles beyond the typical lifespan of lighter vehicles.
What Technology & Safety Features are Included?
The 2011 International ProStar, being a commercial truck, prioritizes functionality and driver focus over cutting-edge consumer-grade tech. Built-in technology generally centers on operational efficiency and driver information. Standard features would typically include a comprehensive instrument cluster with analog gauges and digital readouts for critical vehicle data such as fuel level, engine temperature, oil pressure, and air brake system status. An integrated diagnostics system would likely be present, allowing for real-time monitoring of engine performance and fault codes.
Entertainment features in this era of commercial trucks were relatively basic. A standard radio with AM/FM capabilities and potentially an auxiliary input for portable devices was common. Higher trim levels or optional packages might have included upgraded stereo systems with more speakers or even an integrated CD player. However, advanced infotainment systems with touchscreens and smartphone integration were not standard and were less common in this segment during 2011.
Driver-assistance features were also limited compared to modern passenger vehicles. Basic safety features would include power steering, anti-lock braking systems (ABS), and robust lighting systems for visibility. Advanced driver-assistance systems (ADAS) like lane departure warning, adaptive cruise control, or automatic emergency braking were generally not available or were extremely rare optional features in the 2011 ProStar. The primary safety focus was on the structural integrity of the cab and the reliability of fundamental braking and steering systems.
Safety features in commercial trucks are more about robust construction and compliance with safety regulations than crash test ratings in the same vein as passenger cars. The ProStar was designed with a strong, reinforced cab to protect occupants in the event of a collision. While specific NHTSA or IIHS crash-test ratings comparable to light-duty vehicles are not typically published for Class 8 trucks, manufacturers design these vehicles to meet stringent federal motor vehicle safety standards (FMVSS) for commercial vehicles, focusing on occupant protection, roll-over resistance, and stability.
Entertainment features in this era of commercial trucks were relatively basic. A standard radio with AM/FM capabilities and potentially an auxiliary input for portable devices was common. Higher trim levels or optional packages might have included upgraded stereo systems with more speakers or even an integrated CD player. However, advanced infotainment systems with touchscreens and smartphone integration were not standard and were less common in this segment during 2011.
Driver-assistance features were also limited compared to modern passenger vehicles. Basic safety features would include power steering, anti-lock braking systems (ABS), and robust lighting systems for visibility. Advanced driver-assistance systems (ADAS) like lane departure warning, adaptive cruise control, or automatic emergency braking were generally not available or were extremely rare optional features in the 2011 ProStar. The primary safety focus was on the structural integrity of the cab and the reliability of fundamental braking and steering systems.
Safety features in commercial trucks are more about robust construction and compliance with safety regulations than crash test ratings in the same vein as passenger cars. The ProStar was designed with a strong, reinforced cab to protect occupants in the event of a collision. While specific NHTSA or IIHS crash-test ratings comparable to light-duty vehicles are not typically published for Class 8 trucks, manufacturers design these vehicles to meet stringent federal motor vehicle safety standards (FMVSS) for commercial vehicles, focusing on occupant protection, roll-over resistance, and stability.
What Colors Options are Available?
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2011 International Prostar Prices and Market Value
When new, a 2011 International ProStar could command a price anywhere from $100,000 to $150,000 or more, depending heavily on engine choice, drivetrain specifications, cab configuration (day cab vs. sleeper), and optional features. As a heavy-duty commercial vehicle, depreciation is less dramatic on a percentage basis than for light-duty vehicles, but the dollar amount lost is significant. A decade later, used 2011 ProStar models typically range from $20,000 to $60,000. Factors significantly affecting resale value include mileage, overall condition, maintenance history, the specific engine and transmission, tire wear, and current market demand for vocational trucks. Trucks with lower mileage, well-documented maintenance, and desirable specifications (e.g., fuel-efficient engines, desirable sleeper configurations) will command higher prices. Significant wear and tear or a history of extensive repairs can drastically reduce resale value.
2011 International Prostar Cost of Ownership
Owning a 2011 International ProStar involves substantial costs. Insurance premiums will be high due to the vehicle's value and the risks associated with commercial trucking. Fuel costs are a primary expense; while the ProStar is designed for efficiency, it still consumes significant diesel. Maintenance is critical and ongoing, involving regular oil changes, filter replacements, and tire rotations, which can cost thousands annually. Repair costs for major components like engines, transmissions, or emissions systems can be exceptionally high, often running into tens of thousands of dollars. Therefore, the 2011 International ProStar is generally a costly vehicle to own and operate, demanding careful budgeting and a focus on preventative maintenance to manage expenses.
2011 International Prostar Fuel Efficiency
Fuel Type
Diesel
Fuel Capacity
-
City Mileage
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Highway Mileage
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2011 International Prostar 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 International Prostar Insurance
Insurance for a 2011 International Prostar is moderately priced, reflecting its status as a Truck with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2011 International Prostar Compare to Other Truck?
The 2011 International ProStar competed in a fierce Class 8 truck market against formidable rivals such as the Peterbilt 579, Kenworth T680, Freightliner Cascadia, and Mack Anthem (though Anthem debuted later, its predecessors were direct competitors). In terms of performance, the ProStar offered competitive engine options, particularly with Cummins powerplants, often matching or exceeding the power and torque outputs of its peers. Its aerodynamic design was a strong point, contributing to good fuel efficiency, a key differentiator in this segment.
Feature-wise, the ProStar aimed for driver comfort and functionality. While its interior might not have been as plush or feature-rich as some top-tier competitors like a loaded Peterbilt or Kenworth, it offered a practical and comfortable workspace. The design was modern for its time, with a focus on visibility and ergonomics. Reliability is where comparisons can be nuanced. While Cummins engines were generally well-regarded, International's own MaxxForce engines in this era sometimes received mixed reviews compared to the more established reputations of PACCAR (Peterbilt/Kenworth) or Detroit Diesel engines. However, individual truck maintenance and specific configurations play a massive role.
Price-wise, International trucks often positioned themselves as offering strong value, potentially being more competitively priced than comparable Peterbilts or Kenworths when new. In the used market, this can translate to more accessible entry points for owner-operators.
Alternatives:
Feature-wise, the ProStar aimed for driver comfort and functionality. While its interior might not have been as plush or feature-rich as some top-tier competitors like a loaded Peterbilt or Kenworth, it offered a practical and comfortable workspace. The design was modern for its time, with a focus on visibility and ergonomics. Reliability is where comparisons can be nuanced. While Cummins engines were generally well-regarded, International's own MaxxForce engines in this era sometimes received mixed reviews compared to the more established reputations of PACCAR (Peterbilt/Kenworth) or Detroit Diesel engines. However, individual truck maintenance and specific configurations play a massive role.
Price-wise, International trucks often positioned themselves as offering strong value, potentially being more competitively priced than comparable Peterbilts or Kenworths when new. In the used market, this can translate to more accessible entry points for owner-operators.
Alternatives:
- Freightliner Cascadia: Often praised for its fuel efficiency, reliability, and robust service network. It is a very strong competitor and frequently a benchmark for value and performance.
- Peterbilt 579 / Kenworth T680: These PACCAR products are renowned for their build quality, driver comfort, excellent resale value, and strong engine options (often PACCAR MX or Cummins). They typically command a higher price but offer premium features and perceived reliability.
- Mack Trucks (e.g., Pinnacle): Mack trucks are known for their durability and ruggedness, often favored for vocational applications as well as line-haul. They offer strong engineering and often competitive pricing.
Final Verdict: Is the 2011 International Prostar a Good Truck?
The 2011 International ProStar is ideal for owner-operators and fleet managers seeking a capable, aerodynamically efficient Class 8 truck that offers good value, particularly in the used market. It's worth buying if a thorough pre-purchase inspection is conducted, focusing heavily on the emissions system, engine health (especially if it's an International MaxxForce), and overall electrical integrity. Buying used is the only realistic option now, and trims with Cummins ISX engines tend to be more desirable due to their strong reputation for reliability. It's a strong contender for those prioritizing fuel economy and a comfortable ride over the absolute premium feel found in some competitors. Careful consideration of its maintenance history and potential repair costs is paramount for a sound purchase decision.
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.