Current International® Heavy-Duty LT® Series

2026 International® LT® Series Cummins X15 56" Low Roof Sleeper_4x2

2026 International® LT® Series Cummins X15 56" Low Roof Sleeper_4x2

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Exterior Colors:

  • Year 2026
  • Make International®
  • Model LT® Series
  • Engine Cummins X15
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Product Details Specifications Photos
2026 International® LT® Series Cummins X15 56" Low Roof Sleeper_4x2

2026 International® LT® Series Cummins X15 56" Low Roof Sleeper_4x2

  • Year 2026
  • Manufacturer International®
  • Model Name LT® Series
  • Trim Name Cummins X15 56" Low Roof Sleeper_4x2
  • Generic Type (Primary) On Highway
  • Engine Cummins X15
  • Engine Power 400 – 565 hp
  • Engine Torque 1,450 – 2,050 lb.-ft.

2026 International® LT® Series Cummins X15 56" Low Roof Sleeper_4x2

With its finely tuned ergonomics, spacious interior and uncompromising durability, the International® LT® Series embodies a driver-centric design. Additionally, the LT® with the S13® Integrated Powertrain takes it one step further, leading the on-highway aero category by at least 5% in fuel economy.* Built for long hauls yet agile enough for tight city streets, the LT Series delivers confidence, capability and efficiency to support your bottom line.

Features may include:

  • COLLISION MITIGATION SYSTEM

The Bendix® Fusion™ collision mitigation system can greatly enhance operator safety. By integrating adaptive cruise control, lane departure warning, over-speed alert and stationary vehicle braking, these systems can help you potentially avoid a collision or reduce its severity.

  • VISIBILITY

It’s estimated that 20-30% of truck accidents are vision related. That’s why the LT Series provides impressive forward and lateral visibility. Cab doors have been redesigned with a lower bottom glass edge and no vent window seam for enhanced visibility and reduced blind spots.

  • LED HEADLAMPS

LED headlamps offer unparalleled nighttime visibility for improved safety whether you’re inside the cab or out.

Engine

Engine Cummins X15
Engine Power 400 – 565 hp
Engine Torque 1,450 – 2,050 lb.-ft.

Performance

Power System Type Dual Stage Aftertreatment: Two DEF injectors, dual stage catalysts with upstream and midstream DEF dosing

Battery

Battery Fleetrite®: 12 Volt 3300 - 9200 CCA | JCI: 12 Volt 2250 - 3000 CCA | Deka: 12 Volt 2800 CCA | Enersys Odyssey: 12 Volt 3450 - 4600 CCA

Drivetrain

Drivetrain Axle Configurations: 4X2
Transmission International® T14: 14-speed automated manual transmission with 2 crawler gears
Steering Sheppard | TRW

Chassis

Frame Type Heat-Treated Alloy Steel: 120,000 PSI
Exhaust Single canister after-treatment device, frame mounted right side under cab. | Horizontal or vertical back of cab single exhaust or dual B-pillar vertical exhaust.

Suspension

Front Suspension Parabolic TaperLeaf 12,000 - 14,000 lbs. | Spring Monoleaf 12,000 - 13,200 lbs.
Rear Suspension Air Single | International®: 20,000 lbs. | International : 23,500 lbs. Vari-rate spring | International : 40,000 lbs. | Hendrickson: HTB 40,000 lbs. | Hendrickson: HAS 46,000 lbs.

Brakes

Brake System Type Air Drum Brakes with ABS with Optional Automatic Traction Control and Electronic Stability Control | Air Disc Brakes with Automatic Traction Control and Electronic Stability Control | Air Drum Brakes with ABS with Optional Automatic Traction Control and Electronic Stability Control

Wheels & Tires

Front Tire Continental | Michelin | Bridgestone | Goodyear | Hankook
Rear Tire Continental | Michelin | Bridgestone | Goodyear | Hankook

Dimensions

Wheelbase 146 - 226"

Capacities

Fuel Capacity 70 – 120-gallon, Dual, Non-Polished or Polished Aluminum, Mounted Back of Cab | 70 – 140-gallon, Dual, Non-Polished or Polished Aluminum, Mounted Back of Cab
Axle Capacity, Front Hendrickson: 12,000 - 14,000 lbs. | Meritor: 12,000 - 14,000 lbs. | Dana Spicer: 12,000 - 14,000 lbs.
Axle Capacity, Rear Meritor: 23,000 lbs. | Dana Spicer: 23,000 lbs.

Weights

GVWR 32,000 - 60,000 lbs.

Electric

Alternator Leece-Neville: 12 Volt, 160, 210, 240, 325 Amp | Delco Remy: 12 Volt, 165, 200, 300 Amp

Product Photography

Warning WARNING: Operating, servicing and maintaining a passenger vehicle, an off-highway motor vehicle or a recreational marine vessel can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle or vessel in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle or vessel. For more information go to https://www.p65warnings.ca.gov/products/passenger-vehicle and https://www.p65warnings.ca.gov/products/marine.