Kenworth W990: The Ultimate Guide to the Specs, Features, Performance and Pricing

Kenworth W990

Hey there truck enthusiasts! Are you curious about the Kenworth W990? This classic truck has been a staple in the industry for years. In this guide, we’ll explore everything you need to know about the W990’s specs, features, performance, and pricing.

The Kenworth W990 is the company’s flagship heavy-duty truck model. Known for its customizable options and reliability, the W990 delivers when it comes to hauling heavy loads across long distances. Keep reading to learn what makes this truck so popular.

Kenworth W990 Performance and Capabilities

So what can the W990 actually do? With the right configuration, this truck can handle a maximum load capacity of over 100,000 pounds. Thanks to its aerodynamic sloped hood and optimized chassis, it provides excellent fuel efficiency even when carrying such heavy hauls. The W990 can be outfitted with engines from 455 to 605 horsepower, delivering the muscle needed for tackling steep grades.

The W990 became an industry favorite thanks to its proven powertrain, comfortable interior, and ability to be customized. Fleets value the W990’s durability and performance. Drivers appreciate the spacious, ergonomic cab designed to make long trips easier. And with the range of factory-installed options, buyers can spec their truck exactly how they need it.

Kenworth W990

Specs at a Glance

Years1999 – Present
Model VariationsW990, W990B
HoodsSloped Aerodyne
SuspensionAgileRigid Beam, Neway ADZ, Hendrickson HAS
Horsepower455-605 hp
Transmission (Eaton Fuller)Manual, Automated Manual, Automatic
GVWRUp to 105,000 lbs
Torque1,650-2,050 lb-ft
Sleeper Size36” & 42” Mid-Roof
Interior Trim TypeVinyl, Cloth, Leather
Payload CapacityUp to 45,000 lbs
Wheelbase Options242″, 260″, 280″, 308″, 336″, 367″

Interior Features

The Kenworth W990 prioritizes comfort and convenience inside the cab. Available amenities include:

  • Spacious Cab with Stand-Up Headroom
  • Flat Floor for Ease of Movement
  • Tilt & Telescoping Steering Wheel
  • Digital Gauges & Switch Panels
  • Dinette Table Options
  • Powered Visors, Windows & Locks
  • Automated Climate Control & Filtration

Engine Specs

The W990 comes equipped with top-performing diesel engines. Buyers can select from these powerful options:

  • PACCAR MX-13 – 12.9L Inline 6 Cylinder, 455-505 HP, 1,650-1,850 lb-ft Torque
  • Cummins X15 – 14.9L Inline 6 Cylinder, 485-605 HP, 1,650-2,050 lb-ft Torque

Both engines deliver strong pulling power, and impressive fuel economy, and are built to last over a million miles.

Sleeper Options

For over-the-road trips, the W990 offers spacious sleeper berths to rest in comfort. Choices include:

  • 36″ Mid-Roof Sleeper: Compact yet livable interior with storage space.
  • 42″ Mid-Roof Sleeper: Roomier interior with more headroom and cabinet storage.
  • Optional Dinette Converts to Extra Sleeping Space.
Kenworth W990

The Customizable and Still-Reliable Kenworth W990

One of the W990’s biggest perks is flexibility. Buyers can work with Kenworth to spec the perfect truck for their needs from the factory. Outfit it for fuel efficiency, luxury, or max cargo. But no matter how its configured, the W990 retains Kenworth’s standards of quality and durability. It’s the best of custom combined with the best of Kenworth.

The Successor to the Kenworth W990

In 2021, Kenworth released the next generation W990. The new model keeps the best aspects of its predecessor while featuring a bolder exterior appearance and the latest technology. Upgrades include a wider cab, digital display, ADAS safety features, and more. But buyers can still expect that same trusted performance from this updated flagship truck.

Kenworth W990

How Much Does a Kenworth W990 Cost?

Pricing varies based on the options selected, but expect an MSRP starting around $150,000. Top-of-the-line configurations with more powerful engines, luxury sleepers, and extra features can reach over $200,000. But keep in mind – you’re investing in a proven truck built to last. The W990 delivers excellent return on investment for fleets needing heavy hauling capabilities.

Year RangeTandem Axle PriceTri-Axle Price
2021-2022$150,000 – $165,000$155,000 – $175,000
2018-2020$140,000 – $160,000$145,000 – $170,000
2015-2017$130,000 – $155,000$135,000 – $165,000
2012-2014$120,000 – $150,000$125,000 – $160,000
2009-2011$110,000 – $145,000$115,000 – $155,000


Q: What is the max loaded weight for a W990?

A: Properly equipped, the W990 can handle a max loaded weight of 105,000 lbs or more.

Q: Does the W990 have a double or single bunk sleeper?

A: The W990 sleepers come standard with a single bunk, but a double bunk is available.

Q: What is the top speed for the Kenworth W990?

A: The electronically limited top speed is 70 mph, typical for full-size heavy-duty trucks.

Q: Can I finance or lease a new Kenworth W990?

A: Yes, Kenworth has financing and leasing options through PACCAR Financial.

Q: How long does a W990 usually last?

A: With proper maintenance, the W990 can reliably log over 1 million miles.

Final Thoughts

The Kenworth W990 remains a leader among heavy-duty trucks thanks to its proven performance, driver-focused comfort, and versatile configurations. This classic model sets the standard for long-haul capabilities and reliability. Drivers praise its smooth ride and spacious interior that make living on the road easier. And buyers appreciate the W990’s durable construction and flexible options. If you need a workhorse truck to tackle big loads, the Kenworth W990 delivers.