The 2011 Kenworth T800 is a highly regarded heavy-duty truck, a staple in the vocational and long-haul segments. Known for its robust construction and customizable configurations, it served multiple model years with its iconic rounded-hood design. Key trims often revolved around engine and chassis options, catering to diverse hauling needs. While specific trims varied, pricing for a new 2011 T800 would have been substantial, reflecting its professional-grade build. It remains popular for its legendary durability and versatility, making it a trusted workhorse in demanding industries.
The Good
The 2011 Kenworth T800 excels in raw performance and unwavering reliability, assuring drivers of its capability. Its comfortable cabin, designed for long hours, offers a sense of security and pride of ownership, appealing to both practical needs and the emotional connection drivers have with their trucks.
The Bad
While generally robust, potential owners of a 2011 Kenworth T800 should watch for age-related wear on components like suspension and exhaust systems. Electrical gremlins, particularly with older wiring harnesses, can sometimes arise. Thorough inspection of the drivetrain and chassis is always recommended.
2011 Kenworth T800: Quick Overview
- Engine Options: The 2011 Kenworth T800 offered a wide array of powerful diesel engines, primarily from PACCAR (Kenworth's parent company) and Cummins. Common options included:
- PACCAR MX (various displacements)
- Cummins ISX (e.g., ISX15)
- Cummins ISM
- Cummins ISL
- Horsepower: Horsepower ratings typically ranged from approximately 380 hp to over 600 hp, depending on the specific engine model and configuration chosen. High-torque engines were common for heavy-duty applications.
- Fuel Economy: Fuel economy is highly variable for heavy-duty trucks like the T800 and depends heavily on the engine, transmission, gearing, load, driving style, and operating conditions. However, generally, MPG figures would be in the 5-8 MPG range for highway operations, and lower for vocational use.
- 0-60 Times: 0-60 mph times are not a primary metric for this class of vehicle. When fully loaded, acceleration is gradual and focused on maintaining speed and torque, not rapid acceleration.
- Towing Capacity: The towing capacity of a 2011 Kenworth T800 is exceptionally high and is determined by its Gross Combination Weight Rating (GCWR), which can exceed 100,000 lbs (45,000 kg) and often much higher depending on the specific configuration, chassis, and axle setup. This truck is designed for heavy hauling, including tractor-trailer configurations, tankers, and heavy equipment transport.
- Trim-Level Features: The concept of "trims" in a vocational truck like the T800 is less about standard packages and more about customizable options tailored to the owner's needs. Key areas for customization included:
- Cab Configurations: Day cabs, flat tops, extended day cabs, and various sleeper configurations (e.g., 42-inch, 60-inch, 72-inch).
- Suspension: Various heavy-duty suspension systems (e.g., PACCAR Air, Kenworth Glide Air, TufTrac).
- Axles: Single, tandem, or tridem drive axles with different ratios.
- Braking Systems: Air brakes with ABS were standard.
- Interior Options: While utilitarian, higher-spec interiors could include enhanced seating, improved insulation for noise reduction, and premium material options.
- Powertrain: Transmission options included manual (e.g., Fuller) and automatic transmissions (e.g., Eaton Allison).
- Chassis Options: Various frame rail thicknesses and configurations for specialized vocational applications (e.g., dump trucks, cement mixers, wreckers).
2011 Kenworth T800 Specifications
Vehicle Information
| Year | 2011 |
| Make | Kenworth |
| Model | T800 |
| Trim | - |
| Style | - |
| Type | Truck |
| Category | Special Purpose Vehicle |
Manufacturing Details
| Made In | Mexico |
| Manufacturing City | MEXICALI |
Dimensions
| Doors | - |
| Curb Weight | - |
| Gross Vehicle Weight Rating | 57000 pounds |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 15.0-L L-6 Diesel |
| Engine Size | 15L |
| 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 Kenworth T800 Have?
The 2011 Kenworth T800 is generally recognized for its robust build quality and long-term reliability, a hallmark of Kenworth trucks. However, like any heavy-duty vehicle, certain issues can arise, especially as they age. Frequently reported concerns, though not necessarily widespread for the 2011 model year specifically but common across trucks of this vintage, often relate to:
Electrical System: Older trucks can sometimes experience issues with wiring harnesses, connectors, and sensors, leading to intermittent faults or warning lights. Corrosion in connectors, especially in harsh environments, can also be a problem. This can manifest as issues with the engine control module (ECM), transmission control module (TCM), or lighting systems.
Emissions Systems (for trucks equipped with them): For models manufactured around 2011, emissions control systems, particularly Diesel Particulate Filters (DPFs) and Selective Catalytic Reduction (SCR) systems, could be a source of concern. Issues like DPF regeneration failures, sensor malfunctions, or the need for frequent cleaning or replacement of DPFs were more common in the earlier stages of these technologies. While Kenworth's systems were generally well-regarded, complexity can lead to potential problems.
Wear and Tear on Major Components: As a 2011 model, many T800s will have accumulated significant mileage. This means that components like the clutch, transmission, differential, suspension bushings, and brake systems will naturally show wear. Premature failure of these parts can occur if maintenance has been neglected or if the truck has been subjected to extreme duty cycles.
Cooling System: Over time, radiators can develop leaks, hoses can crack, and water pumps can fail. Overheating issues could arise if the cooling system is not properly maintained.
Fuel System: While less common with quality engines like Cummins or PACCAR, fuel injectors or lift pumps can eventually require attention, especially with the use of lower quality fuel or insufficient fuel filtration.
Recalls: Specific recalls for the 2011 Kenworth T800 would need to be checked against official NHTSA databases using the VIN. However, general recalls that might affect this model year could involve braking system components, steering linkage, or certain engine-related electrical connectors, often related to supplier parts.
Long-Term Reliability: The T800's reputation for long-term reliability is built on its heavy-duty frame, robust drivetrain options, and the quality of its core components. Trucks that have been meticulously maintained, with regular oil changes, filter replacements, and proactive inspections, are likely to continue performing well for many years and hundreds of thousands of miles beyond 2011.
How long will the 2011 Kenworth T800 last?
A well-maintained 2011 Kenworth T800 can easily achieve over 1,000,000 miles, with many units seeing service for 15-20 years or more. The core chassis and drivetrain are built for extreme longevity. Durability is a primary strength; engines, transmissions, and frames are designed to withstand rigorous use. However, over time, weaknesses typically emerge in areas subject to constant stress and environmental exposure. These include suspension components (bushings, kingpins), exhaust systems (corrosion, leaks), and electrical connectors which can degrade, especially in coastal or harsh climate regions. Routine maintenance is paramount; a neglectful owner might see issues arise much sooner, impacting the truck's operational lifespan.
What Technology & Safety Features are Included?
The 2011 Kenworth T800, being a commercial heavy-duty truck, prioritizes functionality, driver comfort for long hauls, and safety over advanced infotainment or cutting-edge driver-assistance features commonly found in passenger vehicles. The technology present is largely focused on operational efficiency and safety:
Built-in Tech: The core technology revolved around the engine and transmission control modules, providing diagnostics and performance monitoring. A standard digital dashboard displayed essential information like speed, RPM, fuel level, oil pressure, and engine warnings. Optional features could include advanced telematics for fleet management, allowing for tracking, diagnostics reporting, and driver behavior monitoring.
Entertainment: Entertainment options were typically basic. A standard AM/FM radio was common, with optional upgrades to include CD players or even satellite radio capability. Bluetooth connectivity for hands-free calling was not standard in 2011 but could be an aftermarket addition or part of a higher-spec factory option for some models.
Driver-Assistance Features: Advanced driver-assistance systems (ADAS) were not prevalent on the 2011 T800. Features like adaptive cruise control, lane departure warning, or automatic emergency braking were generally not offered. The primary focus was on manual control and driver awareness. Some trucks might have been optioned with features like a backup camera for improved visibility when maneuvering in tight spaces, especially in vocational applications.
Safety Features: Safety was paramount, with robust construction being the primary safety feature. Standard safety equipment included:
- Air brakes with ABS (Anti-lock Braking System) were standard, crucial for controlling a heavy vehicle.
- Three-point seat belts were standard.
- Powerful headlights and multiple mirrors for maximum visibility.
- Optional features could include fog lights and enhanced interior lighting.
What Colors Options are Available?
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2011 Kenworth T800 Prices and Market Value
When new, a 2011 Kenworth T800 could range significantly in price depending on its configuration, engine, and options, typically starting from around $100,000 and easily exceeding $200,000 for highly specialized or premium sleeper models. The depreciation curve for heavy-duty trucks is different from passenger cars; they retain value much better due to their durability and specialized purpose. As of late 2023/early 2024, used 2011 Kenworth T800 models can be found anywhere from $30,000 to $80,000+, heavily influenced by mileage, condition, engine hours, maintenance history, and specific vocational application (e.g., a well-maintained highway tractor vs. a worn-out dump truck). Factors affecting resale value include engine manufacturer (Cummins often holds value well), transmission type, frame condition, and overall cosmetic appeal.
2011 Kenworth T800 Cost of Ownership
Owning a 2011 Kenworth T800 is a significant investment, not typically economical in the same vein as a light-duty vehicle. Insurance costs will be substantial, reflecting its value and operational risk. Fuel is a major expense, with consumption heavily dependent on the engine and usage, but expect to spend considerably on diesel. Maintenance and repair are critical and can be costly, though proactive care minimizes major breakdowns. Parts can be expensive, and specialized technicians are required. Overall, it's a costly vehicle to own and operate, but its durability and earning potential often justify the expense for commercial operators.
2011 Kenworth T800 Fuel Efficiency
Fuel Type
Diesel
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
2011 Kenworth T800 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 Kenworth T800 Insurance
Insurance for a 2011 Kenworth T800 is moderately priced, reflecting its status as a Truck with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2011 Kenworth T800 Compare to Other Truck?
The 2011 Kenworth T800 competes in the demanding heavy-duty vocational and long-haul truck market against formidable rivals such as Peterbilt (often sharing PACCAR platforms), Freightliner (e.g., Coronado, Argosy), International (e.g., ProStar), and Mack trucks.
Performance: The T800 consistently delivers strong performance due to its powerful engine options (Cummins, PACCAR) and robust drivetrain. Its performance is matched or exceeded by comparable models from Peterbilt, which often share powertrains and chassis components. Freightliner and International offer competitive engines and performance, though Kenworth and Peterbilt are often perceived to have a slight edge in outright torque and tractive power for the most demanding applications.
Features: In 2011, features in this class were utilitarian. Kenworth and Peterbilt cabs were known for their driver-centric design and comfort, often having an edge in build quality and refinement over some International or Freightliner models of the era. While all offered various cab configurations and powertrain choices, the T800's strength was in its modularity and ability to be spec'd for virtually any job. Advanced tech features were limited across the board for this model year.
Reliability: Kenworth has a legendary reputation for reliability, and the T800 is a prime example. It's often considered more reliable and durable in the long run than many competitors, particularly Freightliner and International, which, while capable, sometimes faced more consistent issues with electrical systems or emissions components in this period. Mack trucks are also known for their ruggedness, especially in vocational applications, making them a strong alternative.
Price: New prices were generally comparable across the premium brands like Kenworth and Peterbilt, often positioning them at a higher price point than Freightliner or International. Used prices for a 2011 T800 reflect its strong residual value due to its reputation.
Recommendations:
Similar Alternatives: A 2011 Peterbilt 389 or 388 would be a very similar alternative, often built on the same PACCAR chassis and offering comparable performance and reliability. A 2011 Mack Anthem or Pinnacle would also be a strong contender, especially for vocational use, known for their robust construction.
Potentially Better Alternatives (depending on need): For pure vocational robustness and durability, a 2011 Mack Granite could be considered superior for extreme off-road or heavy-duty construction. For those prioritizing a slightly more modern cab design and potentially better fuel efficiency (though still highly variable), a later model year Freightliner Coronado or International ProStar might be considered, but reliability might be a slight trade-off compared to the T800.
Final Verdict: Is the 2011 Kenworth T800 a Good Truck?
The 2011 Kenworth T800 is ideal for owner-operators and fleet managers seeking a dependable, workhorse truck built for demanding vocational or long-haul applications. It is absolutely worth buying, especially on the used market, provided it has been well-maintained. Buying used is the only realistic option now. It is best suited for those prioritizing longevity, durability, and customizable configurations over cutting-edge technology or creature comforts. Thorough inspection of mileage, maintenance records, and core components is crucial. Trims configured for specific duties (e.g., highway tractor with a large sleeper, or a robust chassis for a dump body) will hold value and perform best in their intended roles.
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.