Kenworth T680 Service, Operator's and Maintenance Manuals PDF (2024)

Kenworth T680 owner’s, operators, service and maintenance manuals, error codes list, DTC, spare parts manuals & catalogues, wiring diagrams, schematics free download PDF

See also:

  • Kenworth T440 Operator’s and Maintenance Manuals PDF
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TitleFile SizeDownload Links
Kenworth T680 Brochure [PDF]3.5MbDownload
Kenworth T680 Digital Display [PDF]3.3MbDownload
Kenworth T680 Digital Mirror System [PDF]4.3MbDownload
Kenworth T680 Heavy Duty Body Builder Manual 2015 [PDF]16.4MbDownload
Kenworth T680 Heavy Duty Body Builder Manual 2016 [PDF]31.8MbDownload
Kenworth T680 Heavy Duty Body Builder Manual 2017 [PDF]31.8MbDownload
Kenworth T680 Heavy Duty Body Builder Manual 2019 [PDF]30.3MbDownload
Kenworth T680 Heavy Duty Body Builder Manual 2022 [PDF]25.8MbDownload
Kenworth T680 Hydrogen Fuel Cell Electric Vehicle [PDF]5.8MbDownload
Kenworth T680 Next Gen Brochure [PDF]5.7MbDownload
Kenworth T680 Operators Manual [PDF]4.1MbDownload
Kenworth T680 Body Builder Manual [PDF]34MbDownload
Kenworth T680 Service Manual – Mirrors [PDF]4.9MbDownload
Kenworth T680 Service Manual [PDF]4.9MbDownload

Kenworth T680 Manuals PDF

Kenworth T680 is a tractor from the USA, presented in 2012, and has gained wide popularity worldwide. Its features include maximum comfort in the cab, ergonomics, and unique technical features that allow you to cope with any task.

Kenworth T680 is another product of the well-known American company Kenworth Motor Truck, founded in 1923 as a joint stock company by two entrepreneurs, E. Worthington and G. Kent.

Before the advent of the Kenworth T680, many well-known tractors were created and discontinued. Among them are the T 2000 with a modern interior and improved sound insulation and cars of the 700 series, which were produced in the 2000s.

In 2012, at an exhibition in the United States, a new car was presented, presented as a new type of tractor. It was presented as the flagship among the American Kenworth tractors, which combined all the currently available developments. Engineers have implemented many modern systems, improved handling, and fuel economy.

The Kenworth T680 truck has been developed over five years to create a quality truck with a charismatic appearance, a streamlined cab, and elegance in every element. In appearance, we can say that the American truck was created in the best traditions.

The truck has been produced since 2012, but in 2017, there were significant changes in the technical part, the comfort level, and the car’s safety. The developers preferred Paccar MX engines, and a system for reducing “gluttony” appeared, allowing saving on transportation. It is easy to confuse the cab of a tractor with a living room, where you can not only travel but also have a good rest.

The Kenworth T680 has a very soft suspension, a powerful engine, and an automatic suspension. The machine has a turbocharger with the ability to adjust the parameter, an air compressor, and a well-thought-out lubrication system. Thanks to the cab’s aerodynamics, the truck’s creators managed to reduce fuel consumption by 6% compared to the previous version.

Bright front flaps, exhaust covers, and 19-inch extensions are already standard, emphasizing the American look of the tractor. Particular attention is paid to modern technologies, including adaptive cruise control, collision mitigation, side object detection, lane departure warning, and others.

The interior has been completely redesigned to look more like an apartment than a truck cab. The size of the gas tank has increased. A 15-inch display appeared on the dashboard, informing the driver about speed, engine speed, and other parameters. Added LED headlights with IR heaters.

For independent work, it is enough to have a set of “inch” keys, which are sold in special outlets and services in the United States. A standard adjustable wrench is useful for changing wheels.

All in all, the Kenworth T 680 is a long-haul haul tractor capable of covering long distances and providing the driver with a comfortable seating area. The machine is specially designed to deliver goods to any distance within one or more countries without the slightest discomfort.

Specifications Kenworth T680

The main advantage of the truck lies in the unique technical characteristics that make it possible to consider the Kenworth T680 one of the best mainline tractors today.

Basic car parameters:

  • Release year: 2012
  • Overall dimensions (LxWxH), m: 7×2.7×4.1
  • Curb weight, t: 8
  • Engine, volume, l: Paccar MX, 12.9
  • Power, l. c: 405 / 510
  • Drive: rear
  • Gearbox: 10-st. “mechanics” or 12-speed “automatic”
  • Fuel tank, l: 750
  • Fuel consumption, l / 100 km: 38
  • Power reserve, km: 2000
  • Maximum speed, km/h: 120
  • Steering system: hydraulic booster
  • Suspension: dependent
  • Brakes: drum
  • Tires: 285/70 R22.5

Kenworth T680 engine

Initially, the Kenworth T680 tractor was equipped with a Cummins ISX15 engine, which produces up to 485 horsepower. The engine uses the principle of recirculation of cooled gases without increasing the number of harmful emissions. When creating the motor, the developers provided an upper cam system that provides the power unit with excellent performance, efficiency, and the ability to “brake” the engine.

The main parameters of the motor include a volume of 14.9 liters, a compression ratio of 17 to 1, a 14-centimeter cylinder diameter, and a 16.5-centimeter piston stroke. The maximum torque is 2237 Nm, and the total weight is 1.46 tons. This motor was installed not only on the T680 but also on other trucks and other equipment.

Since 2017, the developers have switched to the Paccar MX-13 with a volume of 12.9 liters and a power of 405 to 510 horsepower. In addition, an optional MX-11 version of 10.8 liters and 430 horsepower is available. At the same time, updated cruise control was connected, which works in parallel with GPS satellites and provides real fuel savings due to the correct choice of operating mode.

Kenworth T680 Service, Operator's and Maintenance Manuals PDF (1)

Kenworth T680

Paccar engines provide constant tractive effort, especially when transporting goods over long distances.

The MX-11 version has a dedicated fan clutch that optimizes the power unit’s performance and helps adapt the cooling system to different operating conditions. In parallel, faster warm-up and efficient conditioning of the airflow is provided.

Kenworth T680 Service, Operator's and Maintenance Manuals PDF (2024)


How many miles can you get out of a Kenworth T680? ›

Of course, this will also depend on how good your maintenance and service program is. The lifespan of Kenworth T680 will depend on its mileage. Notably, the manufacturer puts the lifespan of this model at 1.5 million, which suggests that it can last for decades.

How often do you change the oil on a Kenworth? ›

Follow the maintenance intervals below to keep your Kenworth truck with a Paccar engine and automated transmission in top condition and prevent avoidable repairs and downtime. Get a grease job every 20,000-25,000 miles. Get an oil change every 50,000 miles or 1,125 hours, whichever comes first with semi-synthetic oil.

What does wrench light mean on Kenworth T680? ›

The flashing wrench light on a Kenworth T680 typically indicates that there is a fault code present in the system. When you start the truck, the engine control module (ECM) performs a self-diagnostic check and if it detects any issues, it will trigger the wrench light to flash to alert you.

What kind of oil does a Kenworth T680 use? ›

Known for its highly aerodynamic models with fuel efficient powertrains - such as the Kenworth T680 with the PACCAR MX-13 engine - Kenworth today announced it has selected the fuel economy-focused Chevron's Delo® 400 XLE Synblend SAE 10W-30* as standard factory fill for new Kenworth Class 8 diesel trucks.

How many miles per gallon does a T680 get? ›

``The T680 is the newest evolution of that. It's roomier and more fuel efficient, consistently running between 6.6 and 7.0 mpg. The steering, visibility, and everything that goes with it, is a plus. Drivers appreciate the comfort and ride.''

What is considered high mileage on a semi-truck? ›

High mileage for a semi trucks is between 500,000 and 1 million miles. It depends on the brand, what engine size and what horsepower you have your ECM setup to run the engine. It's different than for passenger car engines.

What is the best oil for a Paccar engine? ›

SAE 15W-40 API CJ-4.

How long can a semi go without oil change? ›

Generally, an oil change for a semi truck is recommended after about 25,000 miles. With recent developments in engine efficiency and oil itself, the distance interval between oil changes has increased significantly, allowing drivers to go further between service visits.

How often should you change the transmission fluid in a semi? ›

Semi Truck Service Intervals
Normal – Heavy DutySevere Duty
Coolant Replace750,000 mi750,000 mi
Transmission Filter/Fluid Replace500,000 mi or 60 months250,000 mi or 60 months
Fan/Accessory Drive Belt Replace300,000 mi150,000 mi
Differential Oil Replace250,000 mi150,000 mi
12 more rows

Can you still drive with the wrench light on? ›

Can You Drive With an Illuminated Wrench Light? Before driving with an illuminated wrench light, you have to figure out what's causing it first. If it's for an oil change or service, then yes, you can drive with one. Otherwise, it's not recommended to take your vehicle out for long periods.

What does a blinking wrench light mean? ›

When it illuminates, it means that the computer has detected an issue with your vehicle's powertrain or four-wheel-drive system. It is recommended that you have the system checked by your nearest authorized dealer as soon as possible.

What does the orange wrench mean on my dashboard? ›

What does the wrench light mean? Both of these symbols indicate that your car needs service. Usually, it's because of some sort of time-based milestone not being met, or there's a fault with the car that needs professional attention.

How many gallons of DEF does a T680 hold? ›

Maneuverability of the T680 & T880 models are improved thanks to the shorter wheelbase. This will benefit those who work in tight urban areas or job-sites. This option is now available with Kenworth's 21-gallon, medium size aerodynamic DEF tanks.

How many gallons of fuel does a Kenworth T680 hold? ›

2021 Kenworth T680 - 120 / 100 gal.

What brand of engine does Kenworth use? ›

Kenworth trucks are optimized for seamless performance with the PACCAR Transmission and PACCAR Axles, PACCAR Engines guarantee a smooth operating, high-performance powertrain of unmatched capability.

How many miles can a Kenworth semi-truck last? ›

What Lifespan and Mileage Can You Expect Out of a Semi Truck? Semi trucks, unlike cars, are built to endure long distances and heavy loads. This means that while the average car lasts about 200,000 miles, a typical semi truck can last up to 750,000 miles or more, with some reaching the one million mile mark.

What is the range of the Kenworth T680? ›


The T680 FCEV has a range of up to 450 miles, depending upon driving conditions, and quick refueling.

Which semi-truck engine lasts the longest? ›

The Cummins engine, which is a popular engine choice for heavy-duty trucks, has by far the finest reputation. Cummins engines are renowned for their dependability and effectiveness. The torque produced by smaller engines was insufficient in the past, but new developments have greatly improved this.

What is the average lifespan of a semi-truck? ›

Average Semi Truck Lifespan

A semi truck, on the other hand, lasts upwards of 750,000 miles – and some semis have hit the million mile mark! When you consider the average mileage of 45,000 miles per year, that means you can expect around 15 years for your trusted truck.


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