Year
2024
Manufacturer
Model
Mileage
334,682 mi
VIN
1XKYD49X7RJ374499
Odometer
Accurate / Verified
Condition
Used
Stock Number
WS11753
DOT
Yes
Description
NEW-GEN AERODYNAMIC BODY STYLE 450 HP CUMMINS X15 • PACCAR ENDURANT 12-SPEED • 76" RAISED-ROOF DOUBLE BUNK • 3.08 REAR RATIO • 240-GALLON FUEL CAPACITY • COLLISION MITIGATION • AG400L AIR RIDE
BUILT FOR FUEL-EFFICIENT LONG-HAUL OPERATIONS
This 2024 Kenworth T680 is built for carriers and owner-operators who need to balance fuel efficiency, driver comfort, highway performance, and operating costs. Kenworth's New-Generation aerodynamic body style was designed to reduce aerodynamic drag and improve fuel efficiency, while the 450 HP Cummins X15, PACCAR Endurant 12-speed automated transmission, 3.08 rear axle ratio, and 240-gallon fuel capacity create a drivetrain and fuel system well suited for extended over-the-road operation.
Inside, the 76-inch raised-roof double-bunk sleeper provides the space and amenities drivers need for extended trips, including a refrigerator, cabinets, and desk. A collision mitigation system, engine brake, dual air-ride seats, aluminum wheels, and AG400L air ride suspension add further value for safety, comfort, and daily operating efficiency.
Ideal Applications
This truck is ideally suited for:
Long-Haul Over-the-Road Freight
Dry Van Operations
Refrigerated Freight
Regional Freight
Dedicated Freight
General Commodity Hauling
Expedited Freight
Owner-Operators
Fleet Operations
Fleet Expansion
Key Specifications
450 HP Cummins X15 15.0L Diesel
PACCAR Endurant 12-Speed Automated Transmission
3.08 Rear Axle Ratio
6x4 Tandem Drive
52,350-lb GVWR
12,350-lb Front Axle
40,000-lb Tandem Rear Axles
AG400L Air Ride Suspension
76" Raised-Roof Sleeper
Double Bunk
240-Gallon Fuel Capacity
Collision Mitigation System
Engine Brake
Aluminum Wheels
Air Sliding 5th Wheel
Refrigerator, Cabinets & Desk
Excellent Air Conditioning
Financing & Warranty Options
Financing options are available for all credit situations. Extended warranty and service contract options are also available, giving buyers additional flexibility and protection when putting this truck to work.
New-Generation Aerodynamic T680
The New-Generation Kenworth T680 aerodynamic body style was engineered with fuel efficiency in mind. Its redesigned cab, hood, mirrors, bumper, roof fairings, and overall exterior profile work together to reduce aerodynamic drag at highway speeds.
For a truck that may spend thousands of miles on the interstate every month, small improvements in aerodynamic efficiency can have a meaningful impact on fuel consumption and cost per mile over the life of the truck.
This is not simply a newer-looking body style—it was designed to help carriers operate more efficiently.
Cummins X15 & PACCAR Endurant Powertrain
The 450 HP Cummins X15 15.0L diesel provides the power and displacement needed for demanding over-the-road freight. The X15 is well suited for operators who regularly encounter heavy loads, long grades, and extended highway operation while still wanting an efficient, dependable powertrain.
Paired with the PACCAR Endurant 12-speed automated transmission, the drivetrain provides smooth, consistent gear changes while automatically selecting the appropriate ratio for changing road and load conditions.
The automated transmission helps reduce driver fatigue, simplifies operation, and allows the engine to remain in an efficient operating range without requiring the driver to manually shift through the gears.
3.08 Rear Axle Ratio — Designed for Highway Efficiency
The 3.08 rear axle ratio was selected with highway operation in mind. Its relatively tall gearing allows the engine to operate at lower RPMs at cruising speeds, helping reduce fuel consumption and engine workload.
For carriers running primarily interstate and regional freight, this provides an effective balance between highway fuel economy and the pulling performance required for modern Class 8 freight applications.
240-Gallon Fuel Capacity
The 240-gallon fuel capacity is a major advantage for long-haul operators. More onboard fuel allows drivers and fleets greater flexibility when planning routes and reduces the need for unnecessary fuel stops.
Fewer stops can mean more time moving freight, while the additional capacity gives operators greater flexibility when fuel prices vary from one location to another.
For high-mileage operations, fuel capacity can directly affect daily productivity.
AG400L Air Ride Suspension
The AG400L air ride suspension is designed to provide a smoother, more controlled ride by absorbing road shock and vibration before it reaches the cab and trailer.
For drivers spending long hours behind the wheel, improved ride quality can help reduce fatigue. The suspension also helps provide a more controlled ride for freight, making it well suited for long-haul and premium freight applications.
Engine Brake & Drum Brakes
The engine brake provides additional braking control when operating with heavy loads, particularly on long descents and mountainous routes. By helping slow the truck without relying entirely on the service brakes, it can help reduce brake wear and provide additional driver control.
The truck's heavy-duty air drum brakes provide dependable stopping performance and a proven, serviceable braking configuration for commercial highway operations.
76-Inch Raised-Roof Double-Bunk Sleeper
The 76-inch raised-roof sleeper was designed for drivers who spend significant time on the road. With double bunks, a refrigerator, built-in cabinets, and a desk, the sleeper provides a practical living and working environment for extended trips.
The additional interior space allows drivers to store personal belongings, prepare for longer trips, and maintain a more comfortable environment while away from home.
For owner-operators and team operations, the double-bunk configuration adds even more versatility.
Safety, Comfort & Productivity Features
This T680 also includes features designed to improve the overall operating experience:
Collision Mitigation System — Provides additional driver assistance and awareness support designed to help reduce the risk of certain forward collisions.
Dual Air-Ride Seats — Improve driver and passenger comfort by reducing vibration and road shock during extended operation.
Air Sliding 5th Wheel — Allows easier adjustment of trailer position and weight distribution without manually repositioning the fifth wheel.
Aluminum Wheels — Reduce unsprung weight while providing durability and a premium appearance.
Refrigerator, Cabinets & Desk — Add practical functionality to the sleeper for drivers spending extended periods away from home.
Built Around the Cost of Doing Business
The value of this T680 isn't just found in horsepower or equipment. It is in how the entire configuration works together.
The New-Generation aerodynamic design helps reduce drag.
The 3.08 gearing supports lower highway RPM.
The X15 and Endurant powertrain delivers efficient, automated performance.
The 240-gallon fuel capacity reduces unnecessary fuel stops.
The AG400L air ride improves ride quality.
The 76-inch sleeper improves driver comfort and retention.
The collision mitigation system adds another layer of driver assistance.
Together, these features are designed to help an owner-operator or fleet improve fuel economy, driver productivity, comfort, safety, and cost per mile.
Quality trucks. Financing solutions. Nationwide delivery.
At American Truck Centers and American Motors, we don't just sell trucks—we help owner-operators and fleets find equipment that fits their business and revenue goals. Financing options are available for all credit situations, extended warranty and service contract options are available, and our team can assist with delivery anywhere in the country.
Call today to speak with a commercial truck specialist and learn why customers nationwide trust American Truck Centers and American Motors for quality used commercial trucks.