The 2006 Kenworth T800 is a rugged and versatile Class 8 truck, a staple in the heavy-duty segment since its introduction. Primarily available as a conventional cab, it has seen continuous evolution through various model years. While specific trims vary based on application, key configurations often include day cabs and various sleeper options. Its popularity stems from its legendary durability, customizable configurations, and robust performance, making it a trusted workhorse for long-haul trucking, construction, and vocational applications. Pricing for a used 2006 model can range significantly based on condition and specifications, typically from $30,000 to $70,000+.
The Good
The 2006 Kenworth T800 boasts exceptional reliability and robust performance, appealing to practical buyers seeking a dependable workhorse. Its durable design and driver-focused comfort features offer emotional reassurance and a sense of capability for long hauls, making it a valuable long-term investment.
The Bad
Potential weaknesses for the 2006 Kenworth T800 include the age of the components, possibly leading to wear and tear on parts like the engine, transmission, and suspension. Electrical gremlins and rust on the chassis are also common concerns to watch out for, especially on well-used units.
2006 Kenworth T800: Quick Overview
- Engine Options: The 2006 Kenworth T800 was typically equipped with powerful Cummins ISX or Caterpillar C15 engines, known for their robust performance and durability. Other engine options from PACCAR (Kenworth's parent company) were also available, depending on the specific configuration and customer requirements.
- Horsepower: Horsepower ratings varied significantly based on the engine choice and vocational application. Common ranges for the Cummins ISX were between 400 to 600 horsepower, while Caterpillar C15 engines often fell within a similar bracket, potentially reaching up to 625 horsepower in some configurations.
- Fuel Economy: Fuel economy in a Class 8 truck like the T800 is highly dependent on factors such as engine, transmission, axle ratios, aerodynamic modifications, load weight, and driving style. For the 2006 T800, typical highway fuel economy could range from 5 to 7 miles per gallon (MPG).
- 0-60 Times: 0-60 mph acceleration times are not a primary metric for heavy-duty trucks and are rarely documented. These vehicles are designed for sustained hauling rather than rapid acceleration. Load conditions, gear ratios, and engine power significantly influence any acceleration measurement.
- Towing Capacity: The towing capacity of the 2006 Kenworth T800 is substantial and dictated by its Gross Vehicle Weight Rating (GVWR) and Gross Combination Weight Rating (GCWR), as well as the specific axle configurations and chassis. These trucks are engineered to handle heavy loads, often exceeding 80,000 pounds GCWR, making them suitable for tandem trailers, heavy equipment transport, and vocational applications.
- Trim-Level Features: The T800 is highly configurable, meaning "trim levels" are less about luxury packages and more about functional specifications tailored to the job. Key features include:
- Cab Options: Day cabs for shorter routes, and various sleeper configurations (e.g., 42-inch, 62-inch, 72-inch) for long-haul drivers, offering amenities like beds, storage, and sometimes even small refrigerators.
- Chassis Configurations: Wheelbases, frame rail thicknesses, and axle placements are customized for specific applications (e.g., dump trucks, concrete mixers, heavy haulers).
- Suspension Systems: A range of suspension options, including Kenworth's own proprietary systems and those from third-party manufacturers, to suit ride quality and load-bearing requirements.
- Braking Systems: Typically feature robust air brake systems.
- Interior: While utilitarian, the interiors are designed for driver comfort and functionality, with adjustable seats, ergonomic dashboards, and integrated controls. Higher-spec units might include upgraded upholstery and additional creature comforts.
2006 Kenworth T800 Specifications
Vehicle Information
| Year | 2006 |
| Make | Kenworth |
| Model | T800 |
| Trim | - |
| Style | - |
| Type | Truck |
| Category | Compact Car |
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 | 12.0-L L-6 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 | - |
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What Problems Does the 2006 Kenworth T800 Have?
The 2006 Kenworth T800, being a heavy-duty truck, is built for longevity. However, like any vehicle, it can develop issues over time, particularly with age. Common concerns reported by owners often revolve around standard wear and tear rather than inherent design flaws. One frequently mentioned area is the electrical system; older trucks can experience issues with wiring harnesses, sensors, and control modules, leading to intermittent faults or warning lights. This can sometimes be exacerbated by corrosion in connectors, especially in regions with harsh weather or road salt usage.
Another area to watch is the drivetrain. While the engines (typically Cummins or Caterpillar) and transmissions are robust, components like clutches, U-joints, and differential seals can require replacement after extensive mileage. Issues with exhaust gas recirculation (EGR) systems on later models with these technologies can also arise, though the 2006 model might predate some of the more complex emission control systems that became standard later.
Concerning recalls, for a 2006 model year, any significant recalls would have been issued by the manufacturer and addressed by now. It's crucial for potential buyers to check the National Highway Traffic Safety Administration (NHTSA) database or consult Kenworth directly for any outstanding recalls or past service campaigns related to specific VINs. General long-term reliability concerns for a 2006 T800 largely depend on the original build specifications, how well it was maintained, and the type of work it performed. Trucks used in severe service applications (e.g., mining, heavy construction) will naturally show more wear than those used primarily for line-haul. The chassis itself is incredibly durable, but rust can become an issue on frames and body panels in corrosive environments. Regular and thorough maintenance, including fluid changes, filter replacements, and inspections, is paramount to ensuring continued reliability and mitigating potential problems with a truck of this age.
Another area to watch is the drivetrain. While the engines (typically Cummins or Caterpillar) and transmissions are robust, components like clutches, U-joints, and differential seals can require replacement after extensive mileage. Issues with exhaust gas recirculation (EGR) systems on later models with these technologies can also arise, though the 2006 model might predate some of the more complex emission control systems that became standard later.
Concerning recalls, for a 2006 model year, any significant recalls would have been issued by the manufacturer and addressed by now. It's crucial for potential buyers to check the National Highway Traffic Safety Administration (NHTSA) database or consult Kenworth directly for any outstanding recalls or past service campaigns related to specific VINs. General long-term reliability concerns for a 2006 T800 largely depend on the original build specifications, how well it was maintained, and the type of work it performed. Trucks used in severe service applications (e.g., mining, heavy construction) will naturally show more wear than those used primarily for line-haul. The chassis itself is incredibly durable, but rust can become an issue on frames and body panels in corrosive environments. Regular and thorough maintenance, including fluid changes, filter replacements, and inspections, is paramount to ensuring continued reliability and mitigating potential problems with a truck of this age.
How long will the 2006 Kenworth T800 last?
The 2006 Kenworth T800 is renowned for its exceptional long-term durability, often logging well over a million miles in its service life. Average mileage for a truck of this age can range dramatically, from 500,000 miles for lighter vocational use to over 1.5 million miles for dedicated long-haul operations. With diligent maintenance, including regular oil changes, filter replacements, and proactive inspections, these trucks can continue to perform reliably for many years. The primary weaknesses that emerge over time are typically related to wear and tear on components like the engine, transmission, suspension, and exhaust systems, rather than catastrophic failures. Rust can also be a concern in certain climates. However, the core chassis and cab structure are built to last, making them a sound investment for continued use if properly cared for.
What Technology & Safety Features are Included?
The 2006 Kenworth T800, being a heavy-duty commercial truck from that era, prioritizes functionality and driver practicality over advanced consumer-grade technology, driver-assistance features, or extensive entertainment systems. Its built-in tech is primarily focused on operational efficiency and safety in a commercial setting.
Basic Technology & Instrumentation: The dashboard features a robust array of analog gauges and digital readouts providing critical information on engine status, fuel levels, air pressure, and vehicle speed. Diagnostic systems are integrated to alert the driver and technicians to potential issues. For its time, features like integrated cruise control were common, aiding driver comfort on long routes. AM/FM radio and CB radio capabilities were standard or common options for entertainment and communication.
Driver-Assistance Features: True driver-assistance systems as we know them today (like lane keeping assist, adaptive cruise control, or automatic emergency braking) were not standard or widely available on the 2006 T800. The focus was on the driver's direct control and awareness. ABS (Anti-lock Braking System) was a significant safety feature present on most models.
Safety Features: Safety in the T800 is inherent in its robust construction. It features heavy-duty frame rails, a strong cab structure designed to protect occupants in a collision, and powerful air brakes for reliable stopping power. Seatbelts are standard. Visibility from the driver's seat is generally excellent due to the cab-over-engine design and large windows.
Optional Features: Depending on the vocational application and customer specifications, optional features could include upgraded interior materials, power windows and locks (less common on earlier models), premium seating, auxiliary heating systems, and advanced telematics for fleet management. Higher-end sleeper cabs could be equipped with amenities like satellite radio pre-wiring, inverter systems for small electronics, and more comfortable sleeping accommodations.
Crash-Test Ratings: Commercial trucks like the Kenworth T800 are not typically subjected to the same types of crash-test ratings as passenger vehicles by organizations like the NHTSA or IIHS. Their safety is assessed based on Federal Motor Vehicle Safety Standards (FMVSS) for heavy-duty vehicles, which focus on structural integrity, braking performance, and occupant protection in commercial-specific scenarios. The T800's design is inherently geared towards heavy-duty impact resistance and driver survivability.
Basic Technology & Instrumentation: The dashboard features a robust array of analog gauges and digital readouts providing critical information on engine status, fuel levels, air pressure, and vehicle speed. Diagnostic systems are integrated to alert the driver and technicians to potential issues. For its time, features like integrated cruise control were common, aiding driver comfort on long routes. AM/FM radio and CB radio capabilities were standard or common options for entertainment and communication.
Driver-Assistance Features: True driver-assistance systems as we know them today (like lane keeping assist, adaptive cruise control, or automatic emergency braking) were not standard or widely available on the 2006 T800. The focus was on the driver's direct control and awareness. ABS (Anti-lock Braking System) was a significant safety feature present on most models.
Safety Features: Safety in the T800 is inherent in its robust construction. It features heavy-duty frame rails, a strong cab structure designed to protect occupants in a collision, and powerful air brakes for reliable stopping power. Seatbelts are standard. Visibility from the driver's seat is generally excellent due to the cab-over-engine design and large windows.
Optional Features: Depending on the vocational application and customer specifications, optional features could include upgraded interior materials, power windows and locks (less common on earlier models), premium seating, auxiliary heating systems, and advanced telematics for fleet management. Higher-end sleeper cabs could be equipped with amenities like satellite radio pre-wiring, inverter systems for small electronics, and more comfortable sleeping accommodations.
Crash-Test Ratings: Commercial trucks like the Kenworth T800 are not typically subjected to the same types of crash-test ratings as passenger vehicles by organizations like the NHTSA or IIHS. Their safety is assessed based on Federal Motor Vehicle Safety Standards (FMVSS) for heavy-duty vehicles, which focus on structural integrity, braking performance, and occupant protection in commercial-specific scenarios. The T800's design is inherently geared towards heavy-duty impact resistance and driver survivability.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
2006 Kenworth T800 Prices and Market Value
When new, a 2006 Kenworth T800 could have commanded a price ranging from approximately $100,000 to $200,000 or more, depending heavily on the specific configuration, engine, transmission, axle choices, and any specialized vocational equipment fitted. The T800 is a premium vocational and heavy-haul truck, and its initial price reflected its robust build quality and customization options.
Currently, the used market for a 2006 Kenworth T800 shows significant variation. Well-maintained trucks with lower mileage and desirable configurations can still fetch prices from $30,000 to upwards of $70,000, particularly if they are set up for specific, high-demand applications. Trucks with higher mileage, older engines, or those requiring extensive repairs will be considerably less, potentially in the $20,000-$30,000 range.
The T800 exhibits strong resale value for a truck of its age, a testament to its durability and reputation. Depreciation is steep in the initial years, as is typical for heavy-duty vehicles, but once past the first decade, the rate slows considerably. Factors affecting resale value include engine hours, overall condition (mechanical and cosmetic), maintenance history, tire tread depth, and the presence of specialized equipment. Trucks that have been regularly serviced and operated in less severe applications generally hold their value better.
Currently, the used market for a 2006 Kenworth T800 shows significant variation. Well-maintained trucks with lower mileage and desirable configurations can still fetch prices from $30,000 to upwards of $70,000, particularly if they are set up for specific, high-demand applications. Trucks with higher mileage, older engines, or those requiring extensive repairs will be considerably less, potentially in the $20,000-$30,000 range.
The T800 exhibits strong resale value for a truck of its age, a testament to its durability and reputation. Depreciation is steep in the initial years, as is typical for heavy-duty vehicles, but once past the first decade, the rate slows considerably. Factors affecting resale value include engine hours, overall condition (mechanical and cosmetic), maintenance history, tire tread depth, and the presence of specialized equipment. Trucks that have been regularly serviced and operated in less severe applications generally hold their value better.
2006 Kenworth T800 Cost of Ownership
Owning a 2006 Kenworth T800 involves significant costs, making it a costly vehicle to own and operate compared to lighter-duty trucks. Insurance premiums can be substantial, reflecting the vehicle's value and the risks associated with commercial hauling. Fuel costs are a major factor, with consumption varying widely based on engine, load, and route, but averaging 5-7 MPG means substantial expenditure on diesel. Maintenance and repair costs are also considerable; while durable, parts and labor for heavy-duty components are expensive. Regular preventive maintenance is critical to avoid costlier repairs. Overall, while the T800 is a workhorse, its long-term ownership is decidedly costly due to high operational and maintenance expenses, though its longevity can offset some of these concerns for profitable businesses.
2006 Kenworth T800 Fuel Efficiency
Fuel Type
Diesel
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
2006 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
2006 Kenworth T800 Insurance
Insurance for a 2006 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 2006 Kenworth T800 Compare to Other Truck?
The 2006 Kenworth T800 competes in the highly demanding Class 8 vocational and heavy-haul truck market. Its primary rivals include other premium brands known for their durability and customizable platforms, such as Peterbilt (often sharing platforms and powertrains with Kenworth), Freightliner (particularly models like the Coronado or specialized vocational trucks), and Mack Trucks (known for their ruggedness and durability, like the Pinnacle series).
Performance: The T800, equipped with powerful Cummins or Caterpillar engines, generally offers comparable, if not superior, performance to its rivals in terms of torque and hauling capability. Kenworth trucks are often favored for their robust drivetrains and ability to handle extreme loads.
Features: Feature-wise, the T800 is highly configurable. While rivals might offer similar levels of customization, Kenworth often excels in offering durable, driver-centric ergonomics and options for vocational specific needs. For a 2006 model, advanced electronics and driver aids were limited across all brands, focusing more on mechanical robustness.
Reliability: Kenworth and Peterbilt are widely regarded as having top-tier reliability, often exceeding that of Freightliner or even some Mack models in terms of long-term component durability and chassis integrity. The T800 is a benchmark for reliability in the vocational segment.
Price: When new, all these premium trucks were similarly priced, reflecting their heavy-duty construction and customization. In the used market, the 2006 T800 often holds its value exceptionally well due to its reputation, sometimes commanding higher prices than comparable models from other brands with similar mileage, due to its perceived longevity and lower long-term cost of ownership.
Alternatives:
Performance: The T800, equipped with powerful Cummins or Caterpillar engines, generally offers comparable, if not superior, performance to its rivals in terms of torque and hauling capability. Kenworth trucks are often favored for their robust drivetrains and ability to handle extreme loads.
Features: Feature-wise, the T800 is highly configurable. While rivals might offer similar levels of customization, Kenworth often excels in offering durable, driver-centric ergonomics and options for vocational specific needs. For a 2006 model, advanced electronics and driver aids were limited across all brands, focusing more on mechanical robustness.
Reliability: Kenworth and Peterbilt are widely regarded as having top-tier reliability, often exceeding that of Freightliner or even some Mack models in terms of long-term component durability and chassis integrity. The T800 is a benchmark for reliability in the vocational segment.
Price: When new, all these premium trucks were similarly priced, reflecting their heavy-duty construction and customization. In the used market, the 2006 T800 often holds its value exceptionally well due to its reputation, sometimes commanding higher prices than comparable models from other brands with similar mileage, due to its perceived longevity and lower long-term cost of ownership.
Alternatives:
- Peterbilt 379/389: Similar in build and powertrain, offering a slightly different aesthetic and driver experience. Often considered equally reliable and desirable.
- Mack Pinnacle Axle Forward/Back: Known for its robust build and powerful engines, a strong contender, especially for severe service.
- Freightliner Coronado/FLD Series: While perhaps not as consistently lauded for long-term ruggedness as Kenworth or Peterbilt, these offer strong performance and competitive features, often at a slightly lower used price point.
Final Verdict: Is the 2006 Kenworth T800 a Good Truck?
The 2006 Kenworth T800 is ideal for owner-operators and fleet managers seeking a highly durable, versatile, and reliable heavy-duty truck for vocational applications, heavy hauling, or long-haul trucking. It is worth buying for those who prioritize longevity, robust construction, and customizable configurations over cutting-edge technology or creature comforts found in newer vehicles.
It is best purchased on the used market, as new models are significantly more expensive and the 2006 T800, when well-maintained, still offers exceptional value. Buyers should carefully inspect any potential purchase, paying close attention to engine hours, maintenance records, and overall condition. Specific trims or configurations should be chosen based on the intended application – day cabs for local work, and sleepers for over-the-road operations. For its intended purpose, a well-maintained 2006 Kenworth T800 represents a sound and economically viable investment for demanding commercial use.
It is best purchased on the used market, as new models are significantly more expensive and the 2006 T800, when well-maintained, still offers exceptional value. Buyers should carefully inspect any potential purchase, paying close attention to engine hours, maintenance records, and overall condition. Specific trims or configurations should be chosen based on the intended application – day cabs for local work, and sleepers for over-the-road operations. For its intended purpose, a well-maintained 2006 Kenworth T800 represents a sound and economically viable investment for demanding commercial use.
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