International S13 Integrated Powertrain
400 to 515 hp · 1,450 to 1,850 lb-ft
12.74L unified engine with the T14 14-speed automated manual, 2 crawler gears, and dual-stage aftertreatment. Simple, easy to service, and tuned for fuel efficiency.
LT Series
Dependable. Driver‑Friendly.
If it’s long haul, it’s got to be an LT. The S13 Integrated Powertrain leads the on-highway aero category in fuel economy by at least 5 percent.*
*TMC Type IV head-to-head testing against Freightliner Cascadia AeroX DD15, Kenworth T680 MX13, and Volvo VNL760 D13 with comparable specs. The LT with S13 uses up to 3.5% more DEF per gallon of fuel than comparable models.
GVW range
32,000 to 60,000 lb.
Engines
International S13 or Cummins X15
Horsepower
400 to 565 hp
Torque
1,450 to 2,050 lb-ft
Cabs
Day Cab plus 56" and 73" sleepers
Axles
4x2, 6x2, 6x4
Overview
Driver-First Design, Mile After Mile
The International® LT® Series embodies driver-centric design: finely tuned ergonomics, a spacious quiet cab, and industry-leading visibility through a sloped hood, redesigned doors with lower glass, and far-forward mirrors. It is built for long hauls yet agile enough for tight city streets.
Paired with the S13® Integrated Powertrain, the LT delivers category-leading fuel economy that goes straight to your bottom line over hundreds of thousands of miles. Prefer proven big-bore power? The Cummins® X15 is available with up to 565 hp.
From flip-up bunks in the sleeper to a premium digital gauge cluster with real-time fuel economy data, every detail supports the person behind the wheel. That matters for recruiting and retaining drivers as much as it does for safety.
Financing at Artex
Put your next truck to work before you pay for it
Powertrain
Choose Your Power
Cummins X15
400 to 565 hp · 1,450 to 2,050 lb-ft
Big-bore power with optimized ratings for performance, productivity, or efficiency.
- Transmissions: Eaton® Endurant 11-speed and 12-speed, Endurant XD 18-speed, UltraShift PLUS 13-speed and 18-speed, and Fuller Advantage 10-speed automated.
- Eaton Fuller 9-speed to 18-speed manuals are also available.
Cab & Interior
Built Around The Driver
Day Cab, 56" Low Roof Sleeper, 56" Hi-Rise Sleeper, 73" Hi-Rise Sleeper, 73" Sky-Rise Sleeper. 125" BBC, 50" BA.
- Classic
- Durable fleet spec built for hard-working miles.
- Diamond
- Mineral Grey Teak accents with chrome touches.
- Diamond Elite
- Satin Mahogany trim with diamond stitching.
- Best-in-class defrost and HVAC with optional automatic temperature control
- Controls placed by frequency of use
- Standard premium cluster with configurable digital gauges and real-time fuel economy
- Flip-up bunk for team or solo flexibility
Applications
Built For The Work
One platform, many bodies. Artex coordinates the factory spec and your body company so the truck arrives ready to work.
Long haul
Comfort, quiet, and efficiency across every mile.
Local delivery
Day cab strength and maneuverability for city work.
Intermodal
Navigate crowded ports in style and comfort.
Feature Highlights
What Sets The LT Apart
- Fuel efficiency engineering
- Extensive wind tunnel and simulation work on the aero package, paired with the clean-burn design of the S13 Integrated Powertrain.
- Safety systems
- Bendix® Fusion collision mitigation available with adaptive cruise, lane departure warning, overspeed alert, and stationary vehicle braking, plus LED headlamps.
- Visibility
- An estimated 20 to 30 percent of truck accidents are vision related. The LT’s redesigned doors, sloped hood, and forward-mounted mirrors attack exactly that.
- Built to keep drivers
- Flip-up bunks, a quiet spacious cab, and a premium gauge cluster with real-time fuel economy data make the LT a truck drivers ask for by name.
Specifications
Detailed Specs
Published International® specification data for the LT Series. Your Artex sales rep will build the exact configuration around your application.
Frame and axles
- Frame: heat-treated alloy steel, 120,000 PSI
- Front axles: Hendrickson, Meritor, Dana Spicer 12,000 to 14,000 lb.; parabolic taper leaf or monoleaf springs
- Rear axles: single 23,000 lb.; tandem Meritor or Dana Spicer 40,000 to 46,000 lb.
Suspension and wheelbases
- Rear suspensions: International air 20,000 and 40,000 lb.; Hendrickson HTB 40,000 lb., HAS 46,000 lb.; 23,500 lb. vari-rate spring
- Wheelbases: 146" to 226" (4x2), 160" to 252" (6x4)
Brakes, fuel, and electrical
- Brakes: air drum with ABS (optional ATC and ESC) or air disc with ATC and ESC
- Fuel: dual 70 to 140 gallon aluminum tanks
- Electrical: Leece-Neville or Delco Remy alternators up to 325 amp; battery packs up to 9,200 CCA (Fleetrite)
Warranty
Covered From The Start
Base vehicle12 months or 100,000 miles
S13 engine24 months, unlimited miles; dual-stage aftertreatment 24 months unlimited
T14 transmission60 months or 750,000 miles; clutch 36 months or 350,000 miles, towing included
Cummins X1524 months or 250,000 miles
Cab structure and corrosion60 months, unlimited miles
Extended service contracts are available through Artex, including engine, full chassis, and electrical coverage.
Backed By Artex
One Dealer For The Whole Life Of The Truck
Spec Your LT With The Artex Sales Team
Spec an LT for your lanes with Artex. Fuel economy consultations are available: bring your route profile and we will help you compare S13 and X15 configurations.
