The 1985 Kenworth T600, introduced in 1985, is a groundbreaking Class 8 truck renowned for its aerodynamic design and exceptional fuel efficiency. Its distinctive sloping hood and integrated grille were revolutionary for the era, setting it apart from conventional cab-over and conventional trucks. Primarily offered as a Class 8 semi-truck tractor, the T600 quickly gained popularity among owner-operators and fleets seeking to reduce operating costs. While specific trims varied by customer configuration, the core design remained consistent. New pricing was substantial, reflecting its advanced engineering and premium build quality, making it a significant investment.
The Good
The 1985 Kenworth T600 excels in fuel efficiency, saving owners money, while its legendary Kenworth build quality ensures long-term reliability. The innovative aerodynamic design not only looks modern but also provides a quieter, more comfortable ride, appealing to both the pragmatic need for lower costs and the desire for a superior driving experience.
The Bad
Despite its strengths, the 1985 Kenworth T600, like any aging heavy-duty truck, can present challenges. Watch out for potential issues with older electrical systems, wear on suspension components, and the condition of the engine and transmission, especially if maintenance records are incomplete. The advanced nature of its original design might also mean some specialized parts could be harder to source.
1985 Kenworth T600: Quick Overview
- Engine Options: The 1985 Kenworth T600 was typically equipped with powerful and robust diesel engines from major manufacturers. Common options included Cummins NTC series (e.g., NTC 400, NTC 475), Detroit Diesel Series 60 (though less common for the initial '85 models, it became a staple later), and Caterpillar engines. Specific displacements varied greatly based on customer orders and engine manufacturer choice.
- Horsepower: Horsepower ratings for these engines generally ranged from approximately 300 to over 500 horsepower, depending on the specific engine model and tuning. For instance, a Cummins NTC 400 would offer around 400 horsepower, while a higher-spec Detroit Diesel Series 60 could push well beyond 500 horsepower in later configurations.
- Fuel Economy: A primary selling point of the T600 was its superior fuel economy compared to contemporary trucks. While exact MPG figures are highly variable based on load, terrain, driving style, and engine choice, owners reported significant improvements, often in the range of 0.5 to 1.5 MPG better than conventional models. This translated to substantial cost savings over thousands of miles.
- 0-60 Times: 0-60 mph times are not typically a relevant metric for heavy-duty commercial trucks like the Kenworth T600. Their design prioritizes pulling power and sustained speed over acceleration. Performance is measured by hauling capacity and maintaining speed under load.
- Towing Capacity: As a Class 8 tractor, the towing capacity is extremely high, designed to haul heavy freight trailers. Typical Gross Combination Weight Ratings (GCWR) could range from 80,000 lbs up to well over 100,000 lbs, depending on the axle configuration, chassis, and specific application.
- Trim-Level Features: The concept of distinct 'trims' as found in consumer vehicles is less applicable here. Kenworth T600s were highly customizable. However, key features that buyers could select included various aerodynamic fairings, different sleeper cab configurations (day cab, 42-inch, 60-inch, 86-inch sleepers), interior comfort options (seating materials, dashboard layouts, HVAC systems), advanced braking systems, and drivetrain choices (tandem axles, specific transmission types like Fuller transmissions). The base model focused on a robust chassis and the aerodynamic cab design.
1985 Kenworth T600 Specifications
Vehicle Information
| Year | 1985 |
| Make | Kenworth |
| Model | T600 |
| Trim | - |
| Style | - |
| Type | Truck |
| Category | Heavy Truck |
Manufacturing Details
| Made In | United States |
| Manufacturing City | CHILLICOTHE |
Dimensions
| Doors | - |
| Curb Weight | - |
| Gross Vehicle Weight Rating | 57000 pounds |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | MX/MX-13 |
| Engine Size | 14.9L |
| 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 1985 Kenworth T600 Have?
The 1985 Kenworth T600, due to its age, is subject to common issues found in older heavy-duty trucks. Electrical system gremlins are frequently reported; aging wiring harnesses, corroded connectors, and failing sensors can lead to intermittent faults or complete system failures. This can manifest in issues with gauges, lights, or even engine control. The advanced aerodynamic design, while beneficial, also means more complex body panels and associated seals, which can degrade over time, leading to potential water ingress or air leaks if not properly maintained. The cooling system, critical for diesel engines, may require attention; radiator leaks, fan clutch failures, or worn hoses are not uncommon and can lead to overheating. Suspension components, such as airbags, shocks, and bushings, will naturally wear out and require replacement to maintain ride quality and handling. The powertrain, comprising the engine and transmission, is generally robust, but high mileage vehicles may experience issues such as turbocharger wear, injector problems, or clutch wear in manual transmissions. Clutch and brake system wear are also standard for any truck of this age and usage. Specific model year recalls for the 1985 T600 are not readily available in public databases for this specific year and model, as recalls are more frequently tracked for consumer vehicles and are often component-specific rather than model-wide for such specialized equipment. However, any recalls pertaining to the chosen engine or transmission by their respective manufacturers would have applied. Long-term reliability is heavily dependent on the owner's maintenance regimen. Trucks that have been meticulously maintained with regular oil changes, fluid checks, and component replacements will likely still be quite reliable. Conversely, neglected vehicles may present a cascade of problems. The core chassis and frame are typically very durable, but rust can be a concern in areas with harsh winters or coastal environments.
How long will the 1985 Kenworth T600 last?
The 1985 Kenworth T600 is built for longevity, with many units accumulating well over a million miles with proper care. A well-maintained T600 can realistically serve for 15-20 years or more. The long-term durability is a testament to Kenworth's robust construction, particularly the frame and chassis. However, over decades of service, owners should anticipate the need for extensive component replacements, including major engine or transmission overhauls, suspension work, and electrical system refurbishment. Weaknesses that emerge over time often relate to the aging of seals, hoses, wiring, and less robust interior materials. The aerodynamic bodywork, while stylish, can become brittle or crack with extreme age and environmental exposure. Despite these potential issues, the core mechanical integrity of a well-cared-for T600 remains impressive.
What Technology & Safety Features are Included?
The 1985 Kenworth T600, by modern standards, offers a very basic suite of technology, entertainment, and safety features, reflecting the era in which it was manufactured. Built-in tech was minimal, primarily focused on essential operational information. The dashboard would typically feature a comprehensive array of analog gauges displaying engine RPM, speed, oil pressure, coolant temperature, fuel level, and air pressure. A basic AM/FM radio was common, with an optional cassette player for entertainment. There were no integrated navigation systems or sophisticated infotainment screens. Driver-assistance features were virtually non-existent. Cruise control was an option, but advanced systems like lane keeping assist, adaptive cruise control, or automatic emergency braking were not conceived for this vehicle class at the time. Safety features were standard for heavy-duty trucks of the period: robust construction, a strong frame, hydraulic brakes (often with air assist), and seat belts. The advanced aerodynamic design, while primarily for efficiency, did contribute to improved visibility due to the sloping hood. There were no electronic stability control systems or advanced airbag systems beyond basic driver restraints. Crash-test ratings are generally not available or applicable to heavy-duty commercial trucks in the same way they are for passenger vehicles. The focus in their design was on structural integrity under immense load and in high-impact scenarios relevant to their operational environment, rather than standardized passenger car crash tests. The T600's strength lay in its solid build and the safety afforded by its sheer mass and robust chassis. Optional features might have included a CB radio, upgraded speaker systems, or auxiliary lighting, but these were additions rather than integrated technological advancements.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
In the meantime, feel free to explore the other sections for more content.
1985 Kenworth T600 Prices and Market Value
When new, the 1985 Kenworth T600 represented a significant investment, with prices typically ranging from $70,000 to $120,000 or more, depending heavily on engine, drivetrain, sleeper configuration, and custom options. As with most heavy-duty commercial vehicles, the initial depreciation is steep. However, the T600 has proven to be a remarkably resilient used asset. Current used market prices for a 1985 Kenworth T600 can vary widely, from $10,000 for a project truck needing extensive work, to $30,000-$60,000 for well-maintained units with lower mileage and desirable specifications. Factors affecting resale value include overall condition, mileage, maintenance history, engine type, transmission, and the presence of a sleeper cab. Trucks that have been meticulously maintained and have original, desirable engines (like certain Cummins or Caterpillar models) tend to hold their value best.
1985 Kenworth T600 Cost of Ownership
Owning a 1985 Kenworth T600 involves substantial costs, but its operational efficiency can offset them. Insurance premiums will be higher than for consumer vehicles, reflecting its commercial nature, value, and risk. Fuel costs, while improved due to aerodynamics, will still be significant given the large diesel engines. Maintenance and repair costs are the primary drivers of ownership expenses. Regular preventive maintenance is crucial and costly, but necessary to avoid more expensive breakdowns. Repairs for specialized heavy-duty components can be high. Overall, while the upfront and ongoing costs are considerable, the T600 can be economical to own for dedicated commercial use due to its fuel efficiency and durability, but it is a costly vehicle for casual owners or those not factoring in extensive maintenance.
1985 Kenworth T600 Fuel Efficiency
Fuel Type
Diesel
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
1985 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
1985 Kenworth T600 Insurance
Insurance for a 1985 Kenworth T600 is moderately priced, reflecting its status as a Truck with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 1985 Kenworth T600 Compare to Other Truck?
The 1985 Kenworth T600 entered the market as a challenger to established Class 8 conventional trucks from brands like Peterbilt, Freightliner, and Mack. In terms of performance, its key advantage was fuel efficiency, largely due to its revolutionary aerodynamic design, which often surpassed the MPG ratings of its more conventional rivals. Peterbilt's 357 or 377 models, Freightliner's FLD series, and Mack's CH series were strong competitors, offering robust powertrains and traditional cab designs. Features on the T600 were ahead of its time for aerodynamics, but in terms of in-cab amenities, luxury, or advanced technology, it was largely on par with its peers, with customization being the primary differentiator. Reliability is where Kenworth historically shines, and the T600 was no exception. Its build quality was considered top-tier, often outlasting competitors in terms of chassis and structural integrity. However, specific engine and transmission choices dictated overall reliability, a factor shared across all brands. Price-wise, the T600 was a premium offering, often priced higher than comparable Freightliner or Mack models due to its innovative design and Kenworth's reputation. Peterbilt would be its closest competitor in terms of premium positioning and perceived build quality. For someone seeking similar aerodynamic benefits and build quality from the same era, a Peterbilt 377 would be a comparable alternative. If fuel efficiency was the absolute paramount concern and budget was less constrained, the T600 stood out. For those prioritizing raw power and a more traditional, perhaps simpler, design with potentially lower initial cost, a well-equipped Freightliner FLD or a robust Mack CL/CH could be considered. However, for a blend of innovation, efficiency, and enduring quality in 1985, the Kenworth T600 was a compelling, albeit expensive, choice.
Final Verdict: Is the 1985 Kenworth T600 a Good Truck?
The 1985 Kenworth T600 is ideal for owner-operators and small to medium-sized fleets who prioritize long-term fuel savings and legendary Kenworth durability for regional or long-haul trucking. It is worth buying if you are seeking a classic truck with exceptional aerodynamic efficiency for its era and are prepared for the ongoing maintenance and potential repairs inherent in a vehicle of this age. Buying a used T600 is the only option now. It is most advisable to seek out well-maintained examples, ideally with complete service records, focusing on trucks with reliable engines and transmissions. A day cab configuration might be more practical for local hauling, while a sleeper cab is essential for over-the-road operations. It represents a worthwhile investment for those who understand heavy-duty truck mechanics and value robust, efficient engineering over modern amenities.
Jovan
Jovan specializes in interpreting vehicle records and making sense of VIN data. With over 10 years of experience in the automotive data industry, his work ensures that every report is clear, accurate, and useful for car buyers.