2012 Kenworth T660 Overview, Reviews, Ratings & Specs
The 2012 Kenworth T660 is a vocational truck known for its aerodynamic design and fuel efficiency. Primarily produced as a Class 8 truck, it served the North American market. Key trims often revolved around engine and axle configurations rather than distinct model names. Its popularity stems from a blend of driver comfort, operational efficiency, and Kenworth's reputation for durability, making it a favored choice for long-haul and regional applications. Pricing for a used 2012 model can range significantly based on condition and mileage, typically from $30,000 to $70,000.
The Good
The 2012 Kenworth T660 offers strong performance with its powerful engine options, exceptional reliability backed by Kenworth's legacy, and a surprisingly comfortable cab for long hauls. Its aerodynamic design translates to impressive fuel efficiency, a major practical advantage. Emotionally, the T660 provides a sense of pride and dependable partnership, crucial for owner-operators and fleet managers alike.
The Bad
Potential owners of a 2012 Kenworth T660 should be aware of possible issues with the diesel particulate filter (DPF) regeneration system, especially if driven in frequent stop-and-go urban environments. Electrical system glitches, while not universal, can occur. Maintaining the complex emissions control systems is crucial to avoid costly repairs and downtime.
2012 Kenworth T660: Quick Overview
- Engine Options: The 2012 Kenworth T660 was primarily equipped with Cummins ISX engines. Available configurations included the Cummins ISX 11.9 and the Cummins ISX 15.
- Horsepower: Horsepower ratings varied significantly depending on the specific engine and application. For the ISX 11.9, power output typically ranged from 335 to 425 horsepower. The more powerful ISX 15 could produce anywhere from 400 to 600 horsepower.
- Torque: Torque figures also varied, with the ISX 11.9 offering between 1,250 and 1,550 lb-ft, and the ISX 15 providing torque from 1,450 to 2,050 lb-ft.
- Fuel Economy: Specific MPG figures for Class 8 trucks like the T660 are not typically reported in the same way as for passenger vehicles. However, the T660 was designed with aerodynamics and engine efficiency in mind to maximize miles per gallon (MPG) for its class. Factors like load, terrain, driving habits, and specific engine tune played a significant role. A well-maintained T660 with its optimal engine could achieve 6-8 MPG in long-haul applications.
- 0-60 Times: 0-60 mph times are not a standard metric for heavy-duty trucks, as their primary purpose is hauling significant loads at sustained speeds rather than rapid acceleration. Their acceleration is geared towards safely and efficiently moving heavy weights.
- Towing Capacity: As a Class 8 truck, the Kenworth T660 is designed for heavy-duty towing and hauling. Its Gross Combination Weight Rating (GCWR) could exceed 80,000 pounds (and often much higher for specialized applications), with towing capacities determined by configuration, trailer weight, and road regulations. It is suitable for hauling large trailers, tankers, and heavy equipment.
- Trim-Level Features: Kenworth typically offers a range of customization and options rather than distinct 'trims' in the passenger car sense. Key features and options for the 2012 T660 would include:
- Aerodynamic Enhancements: Aerodynamic fairings, roof fairings, and chassis skirts to reduce drag.
- Cab Configurations: Day cabs, mid-roof sleepers, and high-roof sleeper cabs (e.g., 62-inch or 76-inch sleepers) offering varying levels of driver accommodation and living space.
- Interior Comfort: Driver-friendly dashboards, comfortable seating (air-ride seats), advanced climate control, and ergonomic layouts.
- Technology: Available navigation systems, infotainment options, and diagnostic tools.
- Suspension Systems: Various air and mechanical suspension options for ride quality and load handling.
- Transmissions: Manual and automatic transmission options, often from manufacturers like Eaton Fuller.
- Aerodynamic Enhancements: Aerodynamic fairings, roof fairings, and chassis skirts to reduce drag.
2012 Kenworth T660 Specifications
Vehicle Information
| Year | 2012 |
| Make | Kenworth |
| Model | T660 |
| Trim | - |
| Style | - |
| Type | Truck |
| Category | Tractor |
Manufacturing Details
| Made In | United States |
| Manufacturing City | RENTON |
Dimensions
| Doors | - |
| Curb Weight | - |
| Gross Vehicle Weight Rating | 57000 pounds |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 12.9L I6 |
| Engine Size | 12.9L |
| 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 2012 Kenworth T660 Have?
The 2012 Kenworth T660, like many heavy-duty trucks of its era, can experience certain issues that owners and mechanics commonly report. One of the more frequent concerns revolves around the post-2007 emissions control systems, particularly the Diesel Particulate Filter (DPF) and the Selective Catalytic Reduction (SCR) system. Owners may encounter issues with DPF regeneration, requiring manual intervention or leading to costly repairs if not addressed. Sensor failures within these systems are also not uncommon, impacting engine performance and fuel efficiency.
Another area that can sometimes present problems is the vehicle's electrical system. While generally robust, specific components like wiring harnesses, sensors, and control modules can develop faults over time, leading to intermittent issues or warning lights. These can range from minor annoyances to more significant operational disruptions.
Transmission issues, particularly with manual transmissions from some suppliers, could arise with high mileage or improper maintenance. Clutch wear, shifting problems, or internal component failures are possibilities that owners should be mindful of. Similarly, while the Cummins engines are known for their durability, they can still be subject to issues like turbocharger wear, injector problems, or EGR (Exhaust Gas Recirculation) cooler leaks, especially if the truck has been subjected to heavy use without diligent maintenance.
Specific to the 2012 model year, while there aren't widespread, universally documented catastrophic failures unique to this year, it's important to note that any truck this age will have accumulated significant mileage and potential wear. Recalls for Kenworth trucks are generally handled through official channels and would have been addressed by manufacturers or dealerships. Owners should always check the NHTSA website or consult with a Kenworth dealer for any outstanding safety recalls applicable to their specific VIN. Long-term reliability is heavily contingent on the truck's operating environment, the quality of its maintenance, and the specific configurations chosen (e.g., engine, transmission). Trucks used in harsh vocational applications or those that have undergone excessive idling may exhibit more wear than those used for consistent long-haul routes.
How long will the 2012 Kenworth T660 last?
A 2012 Kenworth T660, when properly maintained, can achieve significant mileage, often exceeding 1 million miles. Owner data and maintenance habits are paramount to its longevity. Trucks used for consistent long-haul operations, with regular oil changes, filter replacements, and adherence to the manufacturer's service intervals, are likely to endure for 8-12 years or more. Those used in more demanding vocational applications or those with less diligent maintenance might see a shorter service life, perhaps 5-8 years, before major overhauls are needed. The core chassis and drivetrain components are designed for durability, but the emissions systems and other auxiliary components can be weak points over time, requiring proactive attention and repair to ensure continued service. Despite potential emissions-related upkeep, the fundamental Kenworth engineering contributes to impressive long-term durability.
What Technology & Safety Features are Included?
The 2012 Kenworth T660, as a heavy-duty commercial truck, prioritizes functionality, driver comfort, and safety over the advanced infotainment systems found in passenger vehicles. Built-in technology at this time was focused on operational efficiency and driver support. Standard features typically included a digital diagnostic display, robust HVAC systems, and AM/FM radio. Optional features often expanded upon this foundation to enhance the driving experience and safety.
Drivers could opt for enhanced entertainment systems, which might include CD players, auxiliary inputs, and even rudimentary navigation systems. Communication technology, such as integrated Bluetooth for hands-free calling, was also becoming more common as an option. Driver-assistance features, while not as prevalent as in modern trucks, were starting to be integrated. These could include features like cruise control, and for some configurations, lane departure warning systems. Advanced systems like adaptive cruise control or automatic emergency braking were less common in this model year compared to contemporary offerings in light-duty vehicles.
Safety was addressed through robust construction and standard safety equipment. Features like anti-lock braking systems (ABS) were standard, crucial for maintaining control during heavy braking. Air brakes, a hallmark of heavy trucks, provided significant stopping power. Driver and passenger airbags were also standard safety provisions. The cab structure itself was designed to offer substantial protection in the event of a collision.
While formal crash-test ratings from organizations like NHTSA or IIHS are not typically provided for heavy-duty trucks in the same standardized manner as for passenger cars, Kenworth trucks are built to meet stringent Federal Motor Vehicle Safety Standards (FMVSS) for commercial vehicles. These standards cover various aspects of vehicle safety, including braking, lighting, and structural integrity, ensuring a high level of protection for occupants. The T660's focus was on providing a safe and reliable platform for demanding commercial operations.
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2012 Kenworth T660 Prices and Market Value
When new, a 2012 Kenworth T660 could range significantly in price, typically from approximately $90,000 to $150,000 or more, depending heavily on the specific configuration, engine, sleeper options, and added features. As a commercial truck, the depreciation curve is different from passenger vehicles. While they do depreciate, well-maintained T660s hold their value relatively well, especially those with desirable engine options and in good working condition. Current used market prices for a 2012 Kenworth T660 can vary widely, generally falling between $30,000 and $70,000. Factors significantly affecting resale value include mileage, engine hours, overall condition, maintenance history, tire wear, and the presence of any required emissions system repairs. Trucks with comprehensive service records and lower mileage for their age tend to command higher prices.
2012 Kenworth T660 Cost of Ownership
Owning a 2012 Kenworth T660 involves substantial costs. Insurance premiums for Class 8 trucks are significant, varying by coverage, driver record, and operational radius. Fuel costs are a primary expense, with MPG typically in the 6-8 range for highway use, heavily influenced by load and terrain. Maintenance is crucial and can be costly, with regular fluid changes, filter replacements, and emissions system upkeep adding up. Repairs, especially for complex engine or after-treatment systems, can be very expensive. Overall, while the T660 can be an economical choice for businesses due to its efficiency and durability over the long haul, the upfront and ongoing operational costs are considerable, making it a costly vehicle to own for individuals without a revenue-generating purpose.
2012 Kenworth T660 Fuel Efficiency
Fuel Type
Diesel
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
2012 Kenworth T660 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
2012 Kenworth T660 Insurance
Insurance for a 2012 Kenworth T660 is moderately priced, reflecting its status as a Truck with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2012 Kenworth T660 Compare to Other Truck?
The 2012 Kenworth T660 competes in the highly competitive Class 8 heavy-duty truck market. Its primary rivals include models from Peterbilt (e.g., the 579, though the T660 predates the full rollout of the 579), Freightliner (e.g., the Coronado), International (e.g., the ProStar), and Volvo (e.g., the VNL series).
Performance: In terms of performance, the T660, often equipped with Cummins ISX engines, offered robust power and torque comparable to its peers. Its aerodynamic design aimed for superior fuel efficiency, a key differentiator that often placed it favorably against less aerodynamically optimized rivals. Peterbilt trucks of this era, also using PACCAR engines or Cummins, provided similar performance benchmarks.
Features: When it comes to features, the T660 was known for its driver-focused cab, offering good comfort and visibility, which was competitive with Peterbilt and often surpassed more utilitarian offerings. However, brands like Volvo and Freightliner might have offered slightly more advanced cabin ergonomics or integrated technology in their premium lines. The T660's feature set was largely customizable, allowing buyers to spec it to their needs, a common practice across all major manufacturers.
Reliability: Kenworth has a long-standing reputation for building durable and reliable trucks. The T660 generally upholds this reputation, with strong chassis and drivetrain components. While all trucks of this age can experience issues, Kenworths are often considered to be among the most dependable in their class. Peterbilt, being part of the PACCAR family with Kenworth, shares a similar reliability ethos. International and Freightliner also have strong reliability records, though specific engine or component choices could influence this.
Price: Pricing for the 2012 T660, both new and used, was typically in the mid-to-high range within its segment. Kenworths often commanded a premium due to their perceived build quality and resale value. Peterbilt trucks were similarly priced. Freightliner and International could sometimes be found at slightly more competitive price points, making them attractive alternatives for budget-conscious buyers.
Alternatives:
- Similar: Peterbilt 386/387/579 (depending on specific model year comparison) offers a comparable blend of aerodynamics, performance, and driver comfort.
- Alternative for Aerodynamics & Efficiency: Freightliner Coronado or Cascadia models were also strong contenders with a focus on fuel economy and advanced features for their time.
- Alternative for Durability & Simplicity: While less aerodynamic, some older models of Mack trucks might be considered for their ruggedness.
Final Verdict: Is the 2012 Kenworth T660 a Good Truck?
The 2012 Kenworth T660 is ideally suited for owner-operators and fleet managers who prioritize fuel efficiency, driver comfort for long-haul routes, and Kenworth's renowned durability. It's a solid investment for those seeking a reliable workhorse that can deliver years of service. It is generally worth buying, especially on the used market, provided it has been well-maintained. The T660 excels in its ability to offer a good balance between aerodynamic performance and operator comfort. When considering a purchase, thorough inspection, a comprehensive maintenance history review, and attention to the condition of the emissions system are paramount. Opting for models with the more desirable engine and transmission configurations, and sleeper cabs for long-distance drivers, will enhance its value and utility. It is a wise choice for businesses looking for long-term operational efficiency and a truck that holds its value reasonably well in the used market.
Eugene S
Eugene is an automotive enthusiast with over 15 years of experience in the used car market. As a writer at VINCheck.info, he brings deep industry insight and a passion for cars, helping readers make smart, informed decisions. Eugene has written hundreds of used car reviews and is known for breaking down complex automotive topics into clear, actionable advice. Over the years, he has driven and worked on a wide range of vehicles—starting with tuning street cars in his early days and eventually focusing on performance upgrades and reliability improvements. Today, he specializes in evaluating used vehicles through the lens of real-world ownership and enthusiast needs. A longtime fan of Porsche, Eugene especially appreciates vehicles that blend durability with driving enjoyment.