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2005 Kenworth T600 Overview, Reviews, Ratings & Specs

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Cathleen V | June 8, 2026
The 2005 Kenworth T600, a staple in the heavy-duty truck segment, is renowned for its aerodynamic design and robust performance. Produced from the mid-1980s through the late 2000s, this model is a popular choice for owner-operators and fleet managers alike. While specific trims varied, its iconic sloped hood and exceptional driver comfort contribute to its enduring popularity. New pricing would have been substantial, placing it in the high six-figure range, with used prices varying significantly based on condition and mileage.
The Good

The 2005 Kenworth T600 boasts impressive performance and legendary reliability, appealing to the practical buyer. Its aerodynamic design offers efficiency gains, while the spacious, comfortable cabin appeals to the emotional desire for a productive and pleasant work environment.

The Bad

When considering a 2005 Kenworth T600, potential buyers should watch out for the typical wear and tear associated with older heavy-duty trucks. This includes inspecting the drivetrain for excessive mileage issues, checking the HVAC system for proper function, and examining the electrical components for any signs of corrosion or failure.

2005 Kenworth T600: Quick Overview

  • Engine Options: The 2005 Kenworth T600 was typically equipped with powerful diesel engines from major manufacturers such as Cummins and Caterpillar.
    • Cummins ISX Series: Common in this era, offering various displacements and power ratings.
    • Caterpillar C15/C16: Also a prevalent choice, known for their durability and torque.
  • Horsepower: Horsepower ratings generally ranged from approximately 400 hp to over 600 hp, depending on the specific engine model and tune.
  • Torque: Torque figures were equally impressive, often exceeding 1,500 lb-ft, crucial for heavy hauling.
  • Fuel Economy: Fuel economy is highly variable and dependent on load, terrain, driving style, and specific engine configuration, but typically ranged from 5 to 7 miles per gallon.
  • 0-60 Times: 0-60 mph times are not a standard metric for heavy-duty trucks, as their purpose is hauling, not acceleration. Performance is measured in terms of tractive effort and speed under load.
  • Towing Capacity: The towing capacity is substantial, designed for Class 8 heavy-duty applications. Configurations and Gross Combination Weight Ratings (GCWR) could exceed 80,000 lbs, and in specialized applications, much higher.
  • Trim-Level Features: While Kenworth primarily focuses on vocational and long-haul trucks rather than distinct trim levels like passenger cars, options and features would have been heavily customized. Common features that could be considered 'trim' related include:
    • Aerodynamic Enhancements: The signature sloped hood, improved fairings, and chassis skirts were key design elements for efficiency.
    • Cab Options: Various cab lengths and sleeper configurations (e.g., 40-inch, 60-inch, 72-inch sleepers) were available, providing different levels of living space for long-haul drivers.
    • Interior Appointments: Options for upgraded driver seats, premium upholstery, enhanced sound insulation, and additional storage compartments.
    • Technology: While basic by modern standards, options could include more advanced digital displays, integrated navigation (as an aftermarket or dealer-installed option), and advanced diagnostic systems.
    • Suspension and Axle Configurations: A wide array of suspension types (air-ride, leaf spring) and axle configurations (tandem, tridem) were available to suit specific hauling needs.

2005 Kenworth T600 Specifications

Vehicle Information
Year 2005
Make Kenworth
Model T600
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 12L I6
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 2005 Kenworth T600 Have?

The 2005 Kenworth T600, being a well-established model, generally enjoys a reputation for robust build quality and long-term reliability, especially when properly maintained. However, like any heavy-duty vehicle of this age, certain areas warrant attention. One common area of concern for trucks from this era, including the T600, revolves around the electrical system. Over time, wiring harnesses can experience wear, corrosion, or insulation breakdown, leading to intermittent faults in lighting, sensors, or various control modules. Owners often report issues with dashboard warning lights, malfunctioning gauges, or trouble with auxiliary systems.

The engine and drivetrain, while generally very durable, can also present issues with high mileage. Common problems include worn injectors, turbocharger wear, or potential gasket leaks. For Cummins ISX engines, in particular, issues related to the Exhaust Gas Recirculation (EGR) system were more prevalent in earlier iterations, although by 2005, many of these had been addressed through updates. Similarly, Caterpillar engines, while robust, can suffer from worn oil seals or injector cup leaks over extended service life.

The HVAC system is another component that can be a source of trouble. Compressors can fail, leaks can develop in the refrigerant lines, and blower motors can wear out, leading to reduced or non-existent climate control, which is a significant comfort issue for drivers spending long hours on the road.

Suspension components, such as air springs, shocks, and bushings, will naturally wear over time and mileage, requiring replacement. For air suspension systems, leaks in the air bags or airlines are common, leading to an uneven ride or vehicle sag.

Regarding specific recalls for the 2005 model year, it's essential to consult official National Highway Traffic Safety Administration (NHTSA) databases or the manufacturer for definitive recall information. However, typical recalls for heavy-duty trucks from this period might involve issues with brake system components, steering linkage, or fuel system integrity. The specific engine manufacturer (Cummins or Caterpillar) may also have had model-specific recalls affecting the T600. Long-term reliability is heavily dependent on the owner's maintenance regimen. Trucks that have received regular, scheduled maintenance, used high-quality fluids, and addressed minor issues promptly tend to be far more reliable than those that have been neglected.

How long will the 2005 Kenworth T600 last?

The 2005 Kenworth T600 is built for the long haul, and with diligent maintenance, it's not uncommon for these trucks to see upwards of 1 million miles or more in service. Owner data and maintenance habits are the most significant factors influencing longevity. Trucks used for line-haul applications, driven by owner-operators who invest in preventative maintenance, often reach 15-20 years of service. Conversely, trucks used in severe vocational applications or those with sporadic maintenance may experience significant component failures much earlier. The core chassis and cab structure are known for their durability. Weaknesses that emerge over time typically relate to wear and tear on the engine, transmission, and associated systems, as well as electrical components and cabin amenities.

What Technology & Safety Features are Included?

The 2005 Kenworth T600, in its original configuration, offered technology and features that were standard for heavy-duty trucks of its era, rather than cutting-edge innovations. Built-in tech was primarily focused on operational efficiency and diagnostics. This would have included.

Driver Information Systems: A comprehensive dashboard displaying critical engine parameters such as oil pressure, coolant temperature, fuel level, and various warning lights. Advanced diagnostics systems, often accessible through a digital display, helped identify potential issues early.

Entertainment Systems: While not a primary focus, optional entertainment features could have included an AM/FM radio, CD player, and in some higher-spec models, a CB radio. Truckers often customized their cabins with aftermarket entertainment systems for longer hauls.

Driver-Assistance Features: Advanced driver-assistance systems (ADAS) as we know them today were largely absent. Features that would be considered basic assistance included power steering, cruise control, and air-ride suspension for driver comfort, which indirectly aids in reducing fatigue.

Safety Features: Standard safety features would have included robust braking systems (air brakes with ABS on many models), durable construction with reinforced cab structures, seat belts, and exterior lighting. Optional safety features might have included enhanced mirrors for better visibility, and potentially, though less common for this model year, some form of collision mitigation systems.

Optional Features: Kenworth trucks are highly customizable, so optional features could be extensive. This included various sleeper configurations (day cabs, mid-roof sleepers, extended-length sleepers), premium interior materials, enhanced insulation for noise reduction, auxiliary heating and air conditioning units, and advanced telematics for fleet management. High-end stereo systems and navigation units were also often dealer or aftermarket additions.

Crash-Test Ratings: Specific crash-test ratings for heavy-duty commercial trucks like the 2005 Kenworth T600 are not typically available in the same way they are for passenger vehicles. Regulatory bodies focus on road safety and commercial vehicle inspections rather than standardized frontal or side-impact crash tests. The design emphasis is on occupant protection through structural integrity, impact-absorbing materials in the cab, and robust safety restraint systems.

What Colors Options are Available?

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2005 Kenworth T600 Prices and Market Value

When new, the 2005 Kenworth T600 would have represented a significant investment, with base prices starting in the mid-six figures and easily reaching $100,000 to $150,000 or more when fully optioned and equipped with powerful engines and sleeper configurations. Current used market prices for a 2005 Kenworth T600 can vary dramatically. You might find models in rougher condition with high mileage for as little as $15,000 to $25,000. Well-maintained examples with lower mileage and desirable specifications can command prices from $30,000 up to $60,000 or even higher. Depreciation on these heavy-duty trucks is substantial in the first few years, but after about 5-10 years, the depreciation curve flattens considerably. Factors affecting resale value include overall mileage, engine and transmission condition, tire wear, the presence of any major damage or rust, and the specificity of its build for a particular vocational use.

2005 Kenworth T600 Cost of Ownership

Owning a 2005 Kenworth T600 is generally considered costly, reflecting its heavy-duty nature. Insurance premiums can be substantial, influenced by coverage levels, driver history, and the truck's value. Fuel costs are a major ongoing expense, with mileage heavily dependent on load and terrain, but typically averaging 5-7 mpg. Maintenance is critical; regular oil changes, filter replacements, and preventative checks are vital to avoid costly breakdowns. Repairs, especially for major engine or transmission issues, can run into thousands of dollars. While it offers value in its capability, the 2005 T600 is not an economical vehicle to own in terms of day-to-day operational expenses.

2005 Kenworth T600 Fuel Efficiency

Fuel Type Diesel
Fuel Capacity -
City Mileage -
Highway Mileage -

2005 Kenworth T600 Recalls & Defects

Engine and Engine Cooling
Recall date 2005-12-22
Recall no. 05v570000
Source NHTSA
Summary ON Certain Tractors Equipped With Caterpillar Diesel Engines, THE Variable Valve Actuation OIL Line MAY Wear Against THE Sharp Edge OF THE Cylinder Head IF NOT Positioned Correctly.
Consequence THE OIL Line MAY BE CUT ON THE Cylinder Head Causing AN OIL Leak and A Possible Fire.
Remedy Caterpillar, IN Conjunction With Paccar, Will BE Conducting THE Owner Notification and Remedy FOR This Campaign Free OF Charge. Owners MAY Call Caterpillar AT 309-675-6496, Kenworth AT 425-828-5440, or Peterbilt AT 940-591-4201.
Notes Kenworth Recall NO. 05kw7 and Peterbilt Recall NO. 1205e.customers MAY Also Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236(Tty 1-800-424-9153), or GO TO Http://Www.safercar.gov.
Suspension:rear
Recall date 2005-05-19
Recall no. 05v237000
Source NHTSA
Summary ON Certain Trucks and Tractors Equipped With Airglide High-Articulation Rear Suspensions, THE C65-1006 Sway BAR Used IN This Rear Suspension MAY Experience A Reduction IN Fatigue Life DUE TO Either A Manufacturing Process or A High Induced Stress During AN Extreme Suspension Articulation Event.
Consequence Both OF These Conditions CAN Lead TO A Failure OF THE Sway BAR Which Could Cause THE Rear Axle TO Come Loose, Increasing THE Risk OF A Crash.
Remedy THE Inspection and Repair OF These Vehicles Will Depend ON THE Type OF Vehicle (Tractor or Truck) and THE Intended Service Application. This Inspection and Repair Criteria Will BE Forthcoming. THE Recall Began ON June 30, 2005. Owners MAY Contact Kenworth AT 1-425-828-5440.
Notes Kenworth Recall NO. 05kw4.customers MAY Also Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Http://Www.safercar.gov.
Steering
Recall date 2005-11-29
Recall no. 05v543000
Source NHTSA
Summary ON Certain Trucks Equipped With THE Bendix Electronic Stability Control (Esp) System, THE System Uses Multiple Sensors and AN Electronic Control Unit (Ecu) TO Control Vehicle Under Steer, Over-Steer, and Rollover Situations. THE System Relies ON Vehicle Sensors TO BE Functioning and Aligned Properly. THE Steering Angle Sensor HAS THE Potential TO BE Misaligned With THE Steering Column Shaft, Thereby Providing Incorrect Information TO THE Bendix Ecu.
Consequence This Condition Could Affect Vehicle Throttle Control and Braking, Thereby Leading TO Loss OF Vehicle Steering Control Which Could Cause A Crash Without Warning.
Remedy Because OF THE Immediate and Substantial Risk, Kenworth and Peterbilt Dealers Will First Deactivate THE YAW Control Feature OF THE Bendix ESP System Preventing Inadvertent ESP Activation. When Parts ARE Available, THE Steering Column Will BE Replaced TO Insure Proper Alignment OF THE Steering Shaft Sensor and THE Full ESP System Will BE Reactivated. THE Recall Began ON December 7, 2005. Parts TO Complete THE Remedy ARE Estimated TO BE Available IN Early 2006. Owners MAY Contact Kenworth AT 1-425-828-5440 or Peterbilt AT 1-940-591-4201.
Notes Kenworth Recall NO. 05kw6 and Peterbilt Recall NO. 1105d. Customers MAY Also Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Http://Www.safercar.gov.
Suspension
Recall date 2005-04-28
Recall no. 05v189000
Source NHTSA
Summary ON Certain Heavy Duty Class 8 Trucks, THE Suspension HAS Transverse Beam Castings That MAY Fracture Under Normal Loads. IF A Casting Breaks When THE Vehicle IS Traveling ON A Roadway There IS THE Potential FOR Pieces OF THE Casting TO Become Projectiles and THE Suspension's Transverse Beam MAY Drop Down Low Enough TO Contact THE Road Surface.
Consequence This Could Cause Sparks That Could Potentially Ignite and Cause A Fire.
Remedy Dealers Will Inspect and Replace THE Defective Transverse Beam Assemblies Free OF Charge. THE Recall Began ON June 10, 2005, With Letters Being Mailed TO Peterbilt Owners; and ON June 17, 2005, FOR Kenworth Owners. Owners MAY Contact Peterbilt AT 940-591-4201 or Kenworth AT 425-828-5440.
Notes Peterbilt Recall NO. 405-B and Kenworth Recall NO. 05kw3.customers MAY Also Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Http://Www.safercar.gov.
Trailer Hitches
Recall date 2007-06-26
Recall no. 07v269000
Source NHTSA
Summary ON Certain Trucks, THE Removable TOW Hitch ,when Used TO TOW or Lift A Vehicle, CAN Fail DUE TO Defective Material IN THE TOW Hitch.
Consequence IF THE TOW Hitch Assembly Fails While A Vehicle IS Being Towed or Lifted, IT MAY Cause AN Accident That Could Result IN Personal Injury or Death.
Remedy Dealers Will Replace THE TOW PIN Assembly Free OF Charge. THE Recall Began ON September 4, 2007. Owners MAY Contact Kenworth AT 425-828-5440 or Peterbilt AT 940-591-4201.
Notes Peterbilt Recall No.507e and Kenworth Recall NO. 07kwa.customers MAY Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty: 1-800-424-9153); or GO TO Http://Www.safercar.gov.
Engine and Engine Cooling
Recall date 2007-06-28
Recall no. 07v279000
Source NHTSA
Summary ON Certain Trucks Equipped With Caterpillar C11, C13 or C15 Engines, THE OIL Fill CAP CAN Become Dislodged DUE TO CAP Damage or Improper Installation and Become Lodged IN THE U-Joint OF THE Steering Driveline and Steering Gear.
Consequence IF THE CAP Becomes Dodged IN This Area, IT MAY Result IN Difficulty Steering THE Vehicle or Cause Complete Steering Lock-Up Increasing THE Risk OF A Crash.
Remedy Paccar IS Working With Caterpillar TO Repair These Vehicles. Revised OIL CAP Retention Based ON THE Engine Model/Configuration Will BE Incorporated TO Prevent Steering Lock-Up. THE Recall Began During December 2007. Owners MAY Contact Caterpillar AT 1-800-447-4986 or Kenworth AT 425-828-5440.
Notes Kenworth Recall NO. 07kwb.customers MAY Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty: 1-800-424-9153); or GO TO Http://Www.safercar.gov.
Suspension
Recall date 2008-09-24
Recall no. 08v485000
Source NHTSA
Summary Paccar IS Recalling 130 MY 2004-2009 T2000, T800, T600, W900 and T660 Kenworth Trucks Built With AN Ag400 Rear Suspension, Long Stroke Brake Chambers, and Wide Base Tires (Super Singles). These Vehicles MAY Develop AN Increase IN Lateral and Vertical Axle Movement. This Movement MAY Cause Part or Parts OF THE Brake Assembly (Brake CAM Tube Support, Brake Chamber Bracket, Brake Chamber, Brake Spider) TO Develop Fatigue Cracks, Possibly Resulting IN THE Failure OF THE Part or Parts Within THE Brake Assembly.
Consequence A Failure MAY Reduce Vehicle Brake Performance, Increasing THE Risk OF A Crash.
Remedy Dealers Will Install THE CAM Tube Support Brackets ON All OF THE Rear Axle Wheel Ends. Inspect THE Rear Axle Brake Assembly and Replace IT IF Cracked. THE Recall IS Expected TO Begin During November 2008. Owners MAY Contact Kenworth AT 1-425-828-5440.
Notes Kenworth Recall NO. 08kwb. Customers MAY Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty: 1-800-424-9153); or GO TO Http://Www.safercar.gov.
Service Brakes, AIR
Recall date 2009-06-30
Recall no. 09v239000
Source NHTSA
Summary Kenworth IS Recalling 3,423 MY 2004-2009 T2000, T800,t600, W900 and T660 Vehicles. Increased Brake Excitation IN A Certain Vehicle Configuration Which Includes Bendix Drum Brakes, Wide Base Low Profile Single Tires, and AN Ag400 or Ag460 Rear Suspension, DUE TO ITS Unique Brake Clocking and CAM Tube Length, CAN Cause Fatigue and Cracking TO Brake Assembly Components.
Consequence Cracking CAN Cause A Complete Fracture OF THE CAM Tube, Which Could Increase Stopping Distance and Decrease Parking Brake Hold Capability.
Remedy Dealers Will Inspect THE Rear Axle Brakes Assembly, Replace Cracked Rear Axle Brakes Assembly Components Where Required, and Install CAM Tube Support Brackets ON All Rear Axle Wheel Ends Free OF Charge. THE Recall IS Expected TO Begin or Before July 25, 2009. Owner MAY Contact Kenworth AT 1-425-828-5440.
Notes Paccar Recall NO. 09kw7.owners MAY Also Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO <A Href=http://Www.safercar.gov>http://www.safercar.gov</a> .

2005 Kenworth T600 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

2005 Kenworth T600 Insurance

Insurance for a 2005 Kenworth T600 is moderately priced, reflecting its status as a Truck with strong safety ratings and
reasonable repair costs.

How Does the 2005 Kenworth T600 Compare to Other Truck?

The 2005 Kenworth T600 competed in the highly competitive Class 8 heavy-duty truck market against formidable rivals such as Peterbilt (often sharing platforms and powertrains), Freightliner, Volvo, and International. In terms of performance, the T600, typically powered by Cummins ISX or Caterpillar C15/C16 engines, offered robust hauling power and torque, comparable to its direct competitors. Kenworth often had a slight edge in aerodynamic design contributing to fuel efficiency.

When it comes to features, the T600, like its rivals, was highly customizable. While luxury features were less of a focus than in modern trucks, driver comfort and essential amenities were prioritized. Kenworth interiors were often lauded for their quality and ergonomics. The T600's sloped hood design was a defining feature that set it apart visually and functionally.

Reliability is where Kenworth consistently excelled. The brand has a long-standing reputation for building durable, long-lasting trucks. While all trucks from this era require maintenance, Kenworths are often perceived as having superior build quality and fewer recurring issues compared to some competitors, especially in the long-haul segment. Peterbilt, often considered a sibling brand, offered similar reliability and performance.

In terms of price, Kenworth trucks, including the T600, were typically positioned at the premium end of the market when new, reflecting their quality and brand prestige. This meant they were often more expensive than comparable Freightliner or International models. On the used market, their reputation for durability can help them retain value better than some competitors, though age and mileage are still primary determinants.

Alternatives:
  • Peterbilt 379/387 (similar year): Often seen as the closest alternative, sharing many components and offering comparable performance and reliability, with a slightly different aesthetic preference for some buyers.
  • Volvo VNL series (similar year): Known for their comfortable ride and advanced cab designs, Volvo trucks can be a good alternative, particularly for long-haul comfort.
  • Freightliner Columbia/Century Class (similar year): These offered a balance of features and performance, often at a slightly more accessible price point.

For someone seeking a reliable, well-built truck with good fuel efficiency potential, the 2005 Kenworth T600 remains a strong contender. If a slightly different aesthetic or specific feature set is desired, a comparable Peterbilt or Volvo would be excellent choices. Freightliner and International could be considered if budget is a more significant constraint, though long-term reliability might be a slightly greater concern.

Final Verdict: Is the 2005 Kenworth T600 a Good Truck?

The 2005 Kenworth T600 is ideally suited for owner-operators and small-to-medium fleet managers seeking a robust, reliable, and efficient heavy-duty truck with a proven track record. It's particularly appealing to those who prioritize driver comfort and operational longevity. Given its age, buying new is not an option. Therefore, it is worth buying if sourced as a used vehicle with a comprehensive inspection and a history of good maintenance. The specific condition, mileage, and maintenance records are paramount. A well-maintained T600, especially one equipped with a reliable engine like a Cummins ISX or Caterpillar C15 and a desirable sleeper configuration, represents excellent value for its durability and hauling capabilities, provided the buyer is prepared for the ongoing costs associated with operating and maintaining a mature heavy-duty truck.

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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.