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2014 Kenworth T680 Overview, Reviews, Ratings & Specs

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Eugene S | August 2, 2026
The 2014 Kenworth T680 is a Class 8 vocational and line-haul truck introduced as a flagship model for Kenworth. Known for its aerodynamic design, the T680 offers exceptional fuel efficiency and driver comfort. Key trims include the iconic aerodynamic long-hooded conventional. Pricing for a 2014 model varies significantly based on configuration and condition, typically ranging from $60,000 to $120,000+ when new, and a considerable used market value today. Its popularity stems from a blend of advanced styling, operational efficiency, and a driver-centric interior.
The Good

The 2014 Kenworth T680 excels with its class-leading aerodynamics for superior fuel efficiency, a spacious and comfortable driver-focused cab appealing to long-haul needs, and robust build quality ensuring reliability. Its modern design and driver amenities offer both practical operational benefits and an emotionally satisfying ownership experience.

The Bad

Potential weaknesses for the 2014 Kenworth T680 may include the complexity of advanced electronics, which can lead to costly repairs if issues arise. Early models might exhibit minor interior trim wear or HVAC system quirks. Always check for maintenance history, especially for emissions-related components.

2014 Kenworth T680: Quick Overview

  • Engine Options: The 2014 Kenworth T680 was primarily offered with PACCAR PX-9 and PX-7 engines, as well as Cummins ISX15 and ISX12 options. These engines are renowned for their power and durability in heavy-duty applications.
  • Horsepower: Horsepower ratings varied significantly depending on the engine chosen. PACCAR PX-9 engines typically ranged from 300 to 380 horsepower, while the PACCAR PX-7 could offer up to 400 horsepower. The Cummins ISX15 engines commonly produced between 400 and 600 horsepower, and the ISX12 offered configurations around 350 to 425 horsepower.
  • Fuel Economy: Specific MPG figures are not typically published for Class 8 trucks as they are highly dependent on load, route, driving habits, and specific configurations. However, the T680 is designed with advanced aerodynamics and efficient powertrains, making it one of the most fuel-efficient trucks in its class, with many operators reporting significant improvements over older models.
  • 0-60 Times: 0-60 mph times are not a relevant or practical metric for Class 8 trucks like the Kenworth T680. These vehicles are designed for sustained hauling at highway speeds, not rapid acceleration.
  • Towing Capacity: As a Class 8 truck, the Kenworth T680 is built for heavy-duty towing. Its Gross Combination Weight Rating (GCWR) typically ranges from 80,000 lbs up to 140,000 lbs or more, depending on axle configurations, chassis specifications, and engine power. This allows it to haul a wide variety of trailers, including semi-trailers for freight and specialized equipment.
  • Trim-Level Features: The T680 is known for its driver-centric design. Key features often included a comfortable and quiet cabin, advanced ergonomic seating, a tilting and telescoping steering wheel, and ample storage. Available options could include premium interior packages with enhanced materials, advanced infotainment systems, navigation, auxiliary heating and air conditioning units for sleeper cabs, and sophisticated climate control. The aerodynamic bodywork, optimized lighting, and driver-assist technologies further define its premium positioning.

2014 Kenworth T680 Specifications

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Vehicle History Report

What Problems Does the 2014 Kenworth T680 Have?

The 2014 Kenworth T680, being a relatively modern truck, generally boasts good reliability. However, like any heavy-duty vehicle, it's not immune to issues. Some frequently reported concerns, particularly in early production models (including 2014), have centered around the advanced electronic systems. Issues with the powertrain control modules (PCMs), diagnostic trouble codes (DTCs) that are difficult to pinpoint, and sensor malfunctions have been noted by some operators. These can sometimes lead to unexpected downtime and diagnostic challenges for mechanics. Another area that has seen some attention is the HVAC system. While generally robust, some drivers have reported intermittent issues with the climate control, such as inconsistent cooling or heating performance, or problems with blower motor speed control. This can be a significant comfort issue for drivers spending extended periods in the cab. While specific recalls for the 2014 model year are best verified through official NHTSA databases or Kenworth service bulletins, common areas for potential recalls on heavy-duty trucks of this era can include braking system components, exhaust gas recirculation (EGR) systems, or issues related to the fuel injection system. It's crucial for any potential buyer to thoroughly research the VIN of a specific 2014 T680 for any outstanding recalls or completed repairs. Long-term reliability concerns often revolve around the maintenance of the complex emissions control systems (like DPF and SCR), especially if the truck has been subjected to stop-and-go driving or inconsistent maintenance. These components require regular cleaning and proper operation to avoid costly failures. The sophisticated electrical harnesses and connectors can also be susceptible to corrosion or damage over time, particularly in harsh operating environments, leading to intermittent electrical gremlins. Overall, diligent and proactive maintenance is key to mitigating these potential long-term issues and ensuring the longevity of a 2014 Kenworth T680.

How long will the 2014 Kenworth T680 last?

A well-maintained 2014 Kenworth T680 can realistically achieve over 1 million miles of service, with many reaching 1.5 million miles or more before requiring major overhauls. These trucks are built for longevity. Long-term durability is a hallmark of Kenworth engineering, with robust chassis and drivetrains designed for demanding commercial use. Weaknesses that emerge over time are typically related to wear-and-tear on components like clutch assemblies, brakes, and suspension. However, the core structure and engine/transmission in many cases remain strong with proper, regular maintenance. Owners who adhere to scheduled service intervals, use quality fluids and parts, and address minor issues promptly are likely to experience exceptional longevity and reliable service from their T680 for many years and hundreds of thousands of miles.

What Technology & Safety Features are Included?

The 2014 Kenworth T680 was designed with a significant emphasis on driver technology, comfort, and safety, reflecting its premium positioning in the Class 8 market. Built-in tech features often included advanced digital displays for the instrument cluster, providing real-time vehicle diagnostics and information. Navigation systems and integrated communication tools like Bluetooth connectivity were frequently available, enhancing driver efficiency and connectivity on the road. For entertainment, premium sound systems with multiple speakers were common options, along with USB ports for device charging and media playback.

Driver-assistance features, while not as extensive as in modern passenger vehicles, were beginning to be integrated. These could include features like lane departure warning systems, which alert the driver if the vehicle drifts out of its lane. Adaptive cruise control was also becoming more prevalent, helping to maintain a set distance from the vehicle ahead, reducing driver fatigue on long highway stretches. Advanced braking systems, such as ABS (Anti-lock Braking System) and potentially electronic stability control (ESC) on some configurations, contributed to overall vehicle safety.

Safety was a key consideration in the T680's design. The robust construction of the cab was engineered to protect occupants in the event of a collision. While specific crash-test ratings for heavy-duty commercial trucks like the T680 are not conducted or published by organizations like the NHTSA or IIHS in the same manner as passenger cars, Kenworth designs its vehicles to meet or exceed rigorous industry safety standards, including Federal Motor Vehicle Safety Standards (FMVSS). Features like integrated lighting for superior visibility, powerful braking systems, and the structural integrity of the cab contribute to a safer operating environment. Optional safety enhancements could include enhanced lighting packages and advanced mirror systems for improved situational awareness.

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2014 Kenworth T680 Prices and Market Value

When new, a 2014 Kenworth T680 could range significantly in price, typically from around $110,000 to $180,000 or more, depending heavily on the specific configuration, engine, sleeper options, and additional features. As a Class 8 truck, depreciation is a factor, but it's generally more gradual than in the light-duty vehicle market, especially for well-maintained and high-spec models. Current used market prices for a 2014 T680 can vary widely, often falling between $45,000 and $85,000, influenced by mileage, condition, engine hours, tire wear, and overall maintenance history. Factors positively affecting resale value include a proven maintenance record, lower mileage for its age, a desirable engine and transmission combination, and the presence of popular amenities like a comfortable sleeper and advanced technology.

2014 Kenworth T680 Cost of Ownership

Owning a 2014 Kenworth T680 involves substantial costs, but it can be economical for commercial operations due to its efficiency. Insurance premiums are significant, reflecting the high value and risk associated with Class 8 trucks. Fuel costs are a major expense, though the T680's aerodynamic design helps mitigate this. Maintenance and repair costs are considerable; routine servicing, tire replacements, and potential component failures can be expensive. However, the T680's durability and efficiency contribute to a lower cost per mile over its lifespan, making it a cost-effective choice for businesses prioritizing operational savings and reliability.

2014 Kenworth T680 Fuel Efficiency

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2014 Kenworth T680 Insurance

Insurance for a 2014 Kenworth T680 is moderately priced, reflecting its status as a Vehicle with strong safety ratings and
reasonable repair costs.

How Does the 2014 Kenworth T680 Compare to Other Vehicle?

The 2014 Kenworth T680 competes in the premium Class 8 vocational and line-haul truck segment, with key rivals including Freightliner Cascadia, Peterbilt 579, Volvo VNL, and International ProStar. In terms of performance, the T680, often equipped with PACCAR or Cummins engines, offers robust power and torque suitable for heavy hauling, directly comparable to its competitors. Fuel efficiency is a strong suit for the T680, thanks to its advanced aerodynamic design, often giving it an edge over less aerodynamically optimized rivals like some older International models. However, newer iterations of the Cascadia and Volvo VNL may offer comparable or even superior efficiency. Features are where the T680 truly shines, often setting a benchmark for driver comfort and modern amenities. Its spacious, well-appointed cab, advanced driver-focused dashboard, and available premium interior packages were considered class-leading in 2014, rivaling or surpassing the offerings from Peterbilt and Volvo of the same year. Freightliner Cascadia also offered a competitive package, though some drivers prefer the Kenworth's fit and finish. Reliability for the T680 is generally excellent, a Kenworth hallmark. While all trucks in this class can experience issues, Kenworths are known for their durable construction. Competitors like Peterbilt share much of their platform with Kenworth, offering similar reliability. Volvo and Freightliner also have strong reputations, though some anecdotal evidence suggests that Kenworth and Peterbilt might have a slight edge in long-term durability for certain components. Price-wise, the T680 typically sat at the higher end of the spectrum when new, reflecting its premium status, comparable to Peterbilt and often more expensive than Freightliner or International. This premium pricing often translates to strong resale value. Alternatives: * Peterbilt 579: A very similar alternative, often sharing many components with the T680. Offers a comparable blend of performance, comfort, and reliability. A strong contender if found at a similar price point. * Volvo VNL: Known for its comfortable ride and fuel efficiency. A solid choice, especially for long-haul applications, though interior design might be perceived as slightly different. * Freightliner Cascadia: A highly popular and often more budget-friendly option. Offers strong performance and efficiency, though its premium features might not always match the T680's top trims. For a 2014 model, the T680 remains an excellent choice. Its strong performance, superior comfort, and robust reliability, combined with good fuel economy and strong resale value, make it a top-tier option. Unless a significantly better-equipped or lower-mileage competitor is available at a substantially lower price, the T680 is often the preferred choice for discerning owner-operators and fleet managers.

Final Verdict: Is the 2014 Kenworth T680 a Good Vehicle?

The 2014 Kenworth T680 is an ideal choice for owner-operators and fleet managers who prioritize driver comfort, fuel efficiency, and long-term reliability in a Class 8 truck. It is particularly well-suited for long-haul freight operations where its aerodynamic design and comfortable cab contribute significantly to operational success and driver satisfaction. Given its age, buying a used 2014 T680 is generally the most practical approach, as new models are substantially more expensive. It's worth buying if it has a verifiable maintenance history, lower mileage for its age, and is equipped with a desirable engine (like a PACCAR PX-9 or Cummins ISX15) and transmission. Specific trims with sleeper cabs are excellent for over-the-road drivers. While it represents a significant investment, its durability and operational efficiencies often justify the cost for professional trucking applications.

2014 Kenworth T680 Owner Reviews

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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.