The 2015 Kenworth T680 is a Class 8 heavy-duty truck, first introduced in 2013. Known for its aerodynamic design and driver-centric features, it quickly became a popular choice in the vocational and over-the-road trucking industry. Key trims typically include day cabs and various sleeper configurations. Pricing for a used 2015 model can range significantly based on mileage, condition, and specific features, but generally falls between $50,000 and $100,000+. Its standout popularity stems from its blend of fuel efficiency, driver comfort, and modern styling, making it a desirable option for owner-operators and fleets alike.
The Good
The 2015 Kenworth T680 excels with its impressive fuel efficiency, superior driver comfort, and advanced aerodynamic design. Its robust performance and reliability offer peace of mind, while the modern interior appeals to the emotional desire for a pleasant work environment. Practically, its value proposition is strong due to long-term efficiency and durability.
The Bad
Potential weaknesses for the 2015 Kenworth T680 might include the complexity of its advanced electronics, which could lead to more expensive repairs. Some owners have reported issues with the diesel particulate filter (DPF) system requiring specific maintenance. Additionally, certain cabin noise levels could be a concern for some drivers during long hauls.
2015 Kenworth T680: Quick Overview
- Engine Options: The 2015 Kenworth T680 was primarily offered with PACCAR MX-13 engines, a proprietary engine developed by PACCAR. Other available options often included Cummins ISX15 engines.
- Horsepower: PACCAR MX-13 engines typically ranged from 380 to 485 horsepower. Cummins ISX15 engines offered a similar range, often up to 550 horsepower, depending on the specific configuration and application.
- Fuel Economy: Specific MPG figures for heavy-duty trucks are not standardized like passenger vehicles and depend heavily on load, terrain, driving style, and axle ratios. However, the T680 is renowned for its excellent fuel efficiency, often cited as being among the best in its class due to its aerodynamic design and efficient powertrains. Figures can range widely but often aim for optimized operational costs.
- 0-60 Times: 0-60 times are not a standard metric for Class 8 trucks, as their purpose is hauling heavy loads at sustained speeds rather than rapid acceleration.
- Towing Capacity: As a Class 8 tractor, the T680 is designed for heavy towing. Its Gross Combination Weight Rating (GCWR) typically ranges from 80,000 lbs up to 140,000 lbs or more, depending on configuration and application.
- Trim-Level Features:
- Aerodynamics: A key feature across all trims, including the tapered hood, aerodynamic mirrors, optimized chassis fairings, and wheel enclosures.
- Cab Options: Available in various cab configurations, including day cabs (for local routes) and multiple sleeper options (e.g., 40-inch, 52-inch, 76-inch) for over-the-road hauling. Sleeper cabs often feature amenities like comfortable berths, ample storage, and optional amenities like refrigerators or entertainment systems.
- Interior: Designed with driver comfort and ergonomics in mind. Features often include a redesigned instrument panel, a tilt-and-telescope steering wheel, adjustable seats, and improved visibility.
- Powertrain Integration: Options for manual or automated manual transmissions (AMTs) to optimize performance and fuel economy.
- Safety: Standard safety features can include anti-lock braking systems (ABS) and optional advanced driver-assistance systems (ADAS) depending on the build.
2015 Kenworth T680 Specifications
Vehicle Information
| Year | 2015 |
| Make | Kenworth |
| Model | T680 |
| Trim | - |
| Style | - |
| Type | Truck |
| Category | Heavy Truck |
Manufacturing Details
| Made In | United States |
| Manufacturing City | CHILLICOTHE |
Dimensions
| Doors | - |
| Curb Weight | - |
| Gross Vehicle Weight Rating | - |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 14.9L L6 DIESEL |
| Engine Size | 14.9L |
| Engine Cylinders | 6 |
| Transmission | Manual |
| Transmission Type | Manual |
| 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 2015 Kenworth T680 Have?
The 2015 Kenworth T680 generally enjoys a reputation for strong reliability, but like any heavy-duty truck, specific issues can arise. Frequently reported concerns tend to revolve around components that experience high wear and tear or are subject to complex electronic controls. One area that can require attention is the Diesel Particulate Filter (DPF) system, which is critical for emissions control. If not maintained properly, or if the truck is used primarily for short-haul or stop-and-go driving, the DPF can become clogged, leading to performance issues and requiring regeneration cycles or cleaning. This is a common concern for many modern diesel engines, not exclusive to the T680.
Another aspect to watch for relates to the electronic control modules (ECMs) and associated wiring harnesses. As vehicles age, especially those operating in harsh environments, wiring can become fatigued or corroded, potentially leading to intermittent electrical gremlins or sensor malfunctions. The complexity of the vehicle's integrated systems means that diagnosing and repairing these issues can sometimes be time-consuming and costly.
While specific major widespread recalls for the 2015 model year are not extensively documented as systemic design flaws, it is always advisable for potential buyers to check the National Highway Traffic Safety Administration (NHTSA) database for any recalls issued for the specific VIN. These might relate to minor component issues or updates rather than critical failures. Long-term reliability is heavily influenced by the maintenance regimen followed. Trucks that have had regular, scheduled maintenance performed by qualified technicians, using genuine or high-quality parts, are far more likely to remain reliable. Conversely, neglected maintenance can exacerbate minor issues into more significant problems. Engine and transmission longevity are typically excellent when properly cared for. The PACCAR MX-13 engine, for instance, is known for its durability when maintained according to specifications.
Regarding specific model year issues, it's difficult to pinpoint distinct problems unique to the 2015 T680 without detailed manufacturer service bulletins or extensive owner surveys. However, general trends in truck development mean that earlier iterations of new technologies might have more teething issues than later ones. For a 2015 model, it's already several years into its production cycle, so many initial design refinements would likely have been implemented. Drivers and owners often report that the most common issues are related to the normal wear and tear of components, such as brakes, tires, and suspension, especially when used in demanding applications.
Another aspect to watch for relates to the electronic control modules (ECMs) and associated wiring harnesses. As vehicles age, especially those operating in harsh environments, wiring can become fatigued or corroded, potentially leading to intermittent electrical gremlins or sensor malfunctions. The complexity of the vehicle's integrated systems means that diagnosing and repairing these issues can sometimes be time-consuming and costly.
While specific major widespread recalls for the 2015 model year are not extensively documented as systemic design flaws, it is always advisable for potential buyers to check the National Highway Traffic Safety Administration (NHTSA) database for any recalls issued for the specific VIN. These might relate to minor component issues or updates rather than critical failures. Long-term reliability is heavily influenced by the maintenance regimen followed. Trucks that have had regular, scheduled maintenance performed by qualified technicians, using genuine or high-quality parts, are far more likely to remain reliable. Conversely, neglected maintenance can exacerbate minor issues into more significant problems. Engine and transmission longevity are typically excellent when properly cared for. The PACCAR MX-13 engine, for instance, is known for its durability when maintained according to specifications.
Regarding specific model year issues, it's difficult to pinpoint distinct problems unique to the 2015 T680 without detailed manufacturer service bulletins or extensive owner surveys. However, general trends in truck development mean that earlier iterations of new technologies might have more teething issues than later ones. For a 2015 model, it's already several years into its production cycle, so many initial design refinements would likely have been implemented. Drivers and owners often report that the most common issues are related to the normal wear and tear of components, such as brakes, tires, and suspension, especially when used in demanding applications.
How long will the 2015 Kenworth T680 last?
A 2015 Kenworth T680, with proper and consistent maintenance, can realistically achieve 800,000 to over 1 million miles of service. Many owner-operators and fleet managers aim for these mileage benchmarks before considering major overhauls or replacement. The long-term durability of the T680 is a significant selling point, reflecting its robust construction and the quality of its core components, particularly the PACCAR engines. Weaknesses that may emerge over extensive mileage include wear on the DPF system, potential for electrical component fatigue, and the usual wear-and-tear on suspension and braking systems. However, these are generally considered normal maintenance items for a truck of this class and mileage. Trucks used in long-haul, consistent highway driving tend to experience less stress than those in vocational applications with frequent starts, stops, and heavy idling.
What Technology & Safety Features are Included?
The 2015 Kenworth T680 was designed with a focus on driver comfort and efficiency, incorporating a range of technology and safety features that were advanced for its time. While specific tech packages could vary widely based on customer specifications and optional upgrades, a typical T680 would include modern amenities.
Built-in Tech and Entertainment: Standard features often included a digital driver display that provided comprehensive vehicle information. For entertainment and communication, many T680s were equipped with an integrated audio system, often with AM/FM radio, CD player, and auxiliary input. Higher trim levels or optional packages could include more sophisticated infotainment systems with larger displays, Bluetooth connectivity for hands-free calling and audio streaming, and navigation systems. USB ports for charging devices were also becoming more common.
Driver-Assistance Features: While advanced driver-assistance systems (ADAS) were not as ubiquitous in 2015 as they are today, the T680 offered certain helpful technologies. Optional features could include lane departure warning systems, which alert the driver if the vehicle begins to drift out of its lane. Adaptive cruise control was also available on some models, helping to maintain a set distance from the vehicle ahead and reducing driver fatigue on long hauls. Electronic stability control was increasingly becoming standard on heavy-duty trucks for enhanced safety.
Safety Features: Key standard safety features included robust braking systems with ABS (Anti-lock Braking System) to prevent wheel lock-up during emergency stops. The truck's sturdy frame and cab structure were engineered to provide significant protection in the event of a collision. Visibility was also a design priority, with large windshields, carefully placed mirrors, and available fog lights to improve awareness in adverse conditions. While formal crash-test ratings comparable to passenger vehicles (like NHTSA's star ratings) are not typically conducted or published for Class 8 trucks, manufacturers adhere to stringent federal safety standards and often conduct their own internal safety testing to ensure occupant protection and structural integrity. The T680's aerodynamic design also contributes to safety by improving stability at high speeds.
Built-in Tech and Entertainment: Standard features often included a digital driver display that provided comprehensive vehicle information. For entertainment and communication, many T680s were equipped with an integrated audio system, often with AM/FM radio, CD player, and auxiliary input. Higher trim levels or optional packages could include more sophisticated infotainment systems with larger displays, Bluetooth connectivity for hands-free calling and audio streaming, and navigation systems. USB ports for charging devices were also becoming more common.
Driver-Assistance Features: While advanced driver-assistance systems (ADAS) were not as ubiquitous in 2015 as they are today, the T680 offered certain helpful technologies. Optional features could include lane departure warning systems, which alert the driver if the vehicle begins to drift out of its lane. Adaptive cruise control was also available on some models, helping to maintain a set distance from the vehicle ahead and reducing driver fatigue on long hauls. Electronic stability control was increasingly becoming standard on heavy-duty trucks for enhanced safety.
Safety Features: Key standard safety features included robust braking systems with ABS (Anti-lock Braking System) to prevent wheel lock-up during emergency stops. The truck's sturdy frame and cab structure were engineered to provide significant protection in the event of a collision. Visibility was also a design priority, with large windshields, carefully placed mirrors, and available fog lights to improve awareness in adverse conditions. While formal crash-test ratings comparable to passenger vehicles (like NHTSA's star ratings) are not typically conducted or published for Class 8 trucks, manufacturers adhere to stringent federal safety standards and often conduct their own internal safety testing to ensure occupant protection and structural integrity. The T680's aerodynamic design also contributes to safety by improving stability at high speeds.
What Colors Options are Available?
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2015 Kenworth T680 Prices and Market Value
When new, a 2015 Kenworth T680 could range significantly in price, typically from around $120,000 to over $200,000, depending heavily on the configuration, engine, sleeper size, and optional features. Current used market prices for a 2015 Kenworth T680 vary widely, generally falling between $50,000 and $100,000+. Factors such as mileage, overall condition, maintenance history, engine specifications (PACCAR MX-13 vs. Cummins), transmission type, and the presence of desirable features like advanced sleeper amenities or efficient powertrains heavily influence resale value. Depreciation for heavy-duty trucks is generally slower than for light-duty vehicles, especially for well-maintained units with lower mileage relative to their expected lifespan. The T680's reputation for fuel efficiency and driver comfort contributes to strong demand in the used market, helping to maintain its resale value.
2015 Kenworth T680 Cost of Ownership
Owning a 2015 Kenworth T680 involves significant but manageable costs. Insurance premiums will be substantial due to the truck's value and operational risks, varying with coverage levels and operational radius. Fuel is a major ongoing expense; however, the T680's efficiency makes it relatively economical compared to less aerodynamic trucks. Maintenance costs are significant, requiring regular oil changes, filter replacements, and tire rotations. Repairs can be costly, especially for engine or transmission issues, but good maintenance mitigates this. Overall, while the initial investment and ongoing operational expenses are high, the T680 is considered economical to own in the long term due to its fuel efficiency, durability, and strong resale value, particularly when used for its intended purpose of long-haul transportation.
2015 Kenworth T680 Fuel Efficiency
Fuel Type
Diesel
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
2015 Kenworth T680 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
2015 Kenworth T680 Insurance
Insurance for a 2015 Kenworth T680 is moderately priced, reflecting its status as a Truck with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2015 Kenworth T680 Compare to Other Truck?
The 2015 Kenworth T680 competes in the highly contested Class 8 vocational and over-the-road tractor segment. Its primary rivals include trucks like the Peterbilt 579 (sharing much of its platform and technology with the T680), Freightliner Cascadia, Volvo VNL series, and International ProStar.
Performance: The T680, with its PACCAR MX-13 or Cummins ISX15 engines, offers competitive horsepower and torque, ensuring robust performance for hauling heavy loads. Its aerodynamic design contributes to better sustained speeds and fuel efficiency on long hauls, often matching or exceeding rivals like the Cascadia and VNL in this regard. The Peterbilt 579, being a close sibling, offers virtually identical performance characteristics.
Features: Kenworth has historically prioritized driver comfort and modern amenities, and the T680 excels here. Its spacious cab, ergonomic design, and available sleeper configurations are often considered top-tier, appealing to drivers seeking comfort on extended trips. While Freightliner's Cascadia also offers advanced features and driver-centric designs, the T680 and Peterbilt 579 are often perceived as having a slight edge in premium interior feel and finish. Volvo's VNL series is also a strong contender for driver comfort and advanced technology.
Reliability: The T680 benefits from PACCAR's in-house engine technology (MX-13), which is generally regarded as reliable when properly maintained, similar to Volvo's engines. Freightliner's reliance on Detroit Diesel engines also provides a solid and reputable powertrain option. The long-term reliability of any of these trucks is heavily dependent on maintenance. Historically, Kenworth and Peterbilt have maintained strong reputations for durability and build quality, often leading the pack in owner satisfaction surveys. International's ProStar has historically faced more scrutiny regarding reliability compared to its premium counterparts.
Price: New, all these premium Class 8 trucks are in a similar, high price bracket. On the used market, the 2015 Kenworth T680 generally holds its value well, often commanding prices comparable to or slightly higher than a similarly equipped Freightliner Cascadia or International ProStar, but potentially less than a highly optioned Volvo VNL or a Peterbilt 579.
Recommendations: The 2015 Kenworth T680 remains an excellent choice, especially for those prioritizing fuel efficiency and driver comfort. The Peterbilt 579 is a very similar alternative, offering almost identical benefits. For those seeking strong fuel economy and a comfortable ride, the Volvo VNL series is a comparable premium option. The Freightliner Cascadia is also a strong contender, often offering competitive pricing and robust technology, making it a valid alternative if the budget is a primary concern.
Performance: The T680, with its PACCAR MX-13 or Cummins ISX15 engines, offers competitive horsepower and torque, ensuring robust performance for hauling heavy loads. Its aerodynamic design contributes to better sustained speeds and fuel efficiency on long hauls, often matching or exceeding rivals like the Cascadia and VNL in this regard. The Peterbilt 579, being a close sibling, offers virtually identical performance characteristics.
Features: Kenworth has historically prioritized driver comfort and modern amenities, and the T680 excels here. Its spacious cab, ergonomic design, and available sleeper configurations are often considered top-tier, appealing to drivers seeking comfort on extended trips. While Freightliner's Cascadia also offers advanced features and driver-centric designs, the T680 and Peterbilt 579 are often perceived as having a slight edge in premium interior feel and finish. Volvo's VNL series is also a strong contender for driver comfort and advanced technology.
Reliability: The T680 benefits from PACCAR's in-house engine technology (MX-13), which is generally regarded as reliable when properly maintained, similar to Volvo's engines. Freightliner's reliance on Detroit Diesel engines also provides a solid and reputable powertrain option. The long-term reliability of any of these trucks is heavily dependent on maintenance. Historically, Kenworth and Peterbilt have maintained strong reputations for durability and build quality, often leading the pack in owner satisfaction surveys. International's ProStar has historically faced more scrutiny regarding reliability compared to its premium counterparts.
Price: New, all these premium Class 8 trucks are in a similar, high price bracket. On the used market, the 2015 Kenworth T680 generally holds its value well, often commanding prices comparable to or slightly higher than a similarly equipped Freightliner Cascadia or International ProStar, but potentially less than a highly optioned Volvo VNL or a Peterbilt 579.
Recommendations: The 2015 Kenworth T680 remains an excellent choice, especially for those prioritizing fuel efficiency and driver comfort. The Peterbilt 579 is a very similar alternative, offering almost identical benefits. For those seeking strong fuel economy and a comfortable ride, the Volvo VNL series is a comparable premium option. The Freightliner Cascadia is also a strong contender, often offering competitive pricing and robust technology, making it a valid alternative if the budget is a primary concern.
Final Verdict: Is the 2015 Kenworth T680 a Good Truck?
The 2015 Kenworth T680 is an ideal choice for owner-operators and fleet managers prioritizing fuel efficiency, driver comfort, and long-term reliability. It is particularly well-suited for long-haul applications where its aerodynamic design and comfortable cabin can significantly reduce operating costs and driver fatigue. It is definitely worth buying, especially on the used market, where it offers excellent value compared to newer models. Buying a used T680 is recommended over new, given the substantial depreciation. Specific trims to look for would be those with the PACCAR MX-13 engine or a well-maintained Cummins ISX15, and sleeper configurations that suit the intended use (e.g., 76-inch for ultimate comfort on cross-country trips). Thorough pre-purchase inspection is crucial for any used heavy-duty truck.
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.