*The International® LT® with S13® Integrated Powertrain was tested head-to-head using TMC Type IV testing methodology against competitive on-highway aero models with comparable specifications: Freightliner Cascadia AeroX DD15, Kenworth T680 MX13, Volvo VNL760 D13. Testing proved the International LT with S13 Integrated Powertrain to be at least 5% more fuel efficient than these models. The International LT with S13 Integrated Powertrain uses up to 3.5% more DEF per gallon of fuel compared to comparable on-highway aerodynamic models.
The International® S13® Integrated Powertrain is our most advanced, fuel-efficient and streamlined powertrain, available in the LT®, RH™, HX®, and HV™ series. Capable of up to 515 hp and 1,850 lb.-ft of torque, the S13 Integrated consists of an engine, transmission and after-treatment system designed together to maximize integration between systems while allowing each component to perform its function. The result is a new standard of efficiency, profitability and sustainability for our on-highway and off-highway customers.
Through extensive testing, a new piston head with maximum cooling properties was created that when combined with a new double overhead cam design directly equates to less fuel consumed.
The S13 Integrated Powertrain is remarkably light in weight. This helps trucks equipped with the S13 Integrated to achieve an outstanding payload capacity, along with improved fuel economy.
Full torque is available at only 900 RPM and the wide gear ratio means optimal efficiency on flatlands with the performance drivers crave on hilly terrain. Drivers can rely on the new compression release brakes to deliver strong, secure brake power up to 469 HP (at sea level).
The S13 Engine can operate at low rpm with high torque which equates to less fuel consumed while still delivering up to 515 hp and 1,850 lb.-ft of torque. This incredible engine brings undisputed economy through its unique, clean burn technology.
*Comparing the fuel economy of the 2017 GHG International engine in a 2017 International LT Series truck with aero package to the fuel economy of the new International S13 Integrated Powertrain in a 2024 International LT Series truck with the LT aero package and chassis enablers. Actual customer results may vary due to various factors, including but not limited to, truck specifications, weight of the vehicle, predictive features, environmental conditions, etc.
Engine Type: Diesel, 4-Cycle
Configuration: Inline 6-Cylinder
Displacement: 12.7L (777 cu. in.)
Bore & Stroke: 5.12 in. & 6.30 in. (130 mm & 160 mm)
Compression Ratio: 23:1
Aspiration: Fixed Geometry Turbocharger
Combustion System: 1800 bar Common Rail
Engine Lubrication: 47.5 Quarts (45 L)
Total Engine Weight: (Dry) 2284 lbs. (1036 kg)
Valves: 4 Valves Per Cylinder, Dual Overhead Camshaft
B10 Design Life: 1,200,000 mi (1,931,000 km)
Base Engine: 2 years, unlimited miles, unlimited hours
Base Major Components: 5 years, 500,000 miles
Base Towing*: 2 years, unlimited miles, unlimited hours
*Towing for vehicles with engine failures
Optional Engine: Up to 6 years, 600,000 miles
Optional Major Component: Up to 7 years, 700,000 miles
The T14 Transmission features a revolutionary design. It’s a 14-speed overdrive transmission that is optimized to deliver peak fuel economy performance in direct drive (13th gear) during typical load, while still allowing the ability to go into overdrive when lightly loaded or empty. The transmission has an electronically controlled clutch actuator that works in sync with the engine to deliver faster, smoother shift performance. Since it does not consume air during complicated maneuvers — like when you’re backing a trailer into a tight loading dock – the driver never needs to stop and let the air recharge. The T14 also uses an integrated oil to water coolant system to optimize temperature regulation in both hot and cold environments.
Transmission
5 years, 750,000 miles (1,200,000 km) (includes towing)
Clutch
3 years, 350,000 miles (563,000 km)
Transmission, Clutch
Less than 52K rear axles rating: 3 years, unlimited miles
Transmission Mounted PTO Base Warranty
Greater than 52K rear axles rating: 2 years, unlimited miles (includes towing)
| Gear | Ratio | % Step |
|---|---|---|
| R2 | 12.60 | |
| R1 | 16.23 | |
| 1 | 20.81 | 29% |
| 2 | 16.16 | 29% |
| 3 | 12.57 | 29% |
| 4 | 9.76 | 29% |
| 5 | 7.56 | 29% |
| 6 | 5.87 | 29% |
| 7 | 4.55 | 29% |
| 8 | 3.53 | 28% |
| 9 | 2.77 | 29% |
| 10 | 2.15 | 29% |
| 11 | 1.66 | 29% |
| 12 | 1.29 | 29% |
| 13 | 1.00 | 28% |
| 14 | 0.78 |
Because there’s no EGR during regular operation, NOx must be treated in a different way. To do this, the engineers developed an all-new Dual Stage Aftertreatment design that injects a first dose of DEF just downstream of the turbo in the evaporator tube and a second dose inside the aftertreatment container. Since the cooled EGR has been eliminated from the combustion chamber, much less soot or particulate matter is generated. This allows for extended service intervals and eliminates the need for active regents. In fact, the cleaner combustion cycle generates so much less soot the engineers were able to eliminate the need for a diesel oxidation catalyst (DOC) in the aftertreatment system. Combined, the aftertreatment system provides a simple, reliable solution that’s easily serviceable.
IMPROVED PERFORMANCE & FUEL EFFICIENCY
Dual Stage Catalysts w/ Upstream & Midstream DEF Dosing (Two DEF Injectors)
NO DRIVER INTERACTION REQUIRED
The System Manages Regeneration During Operation
LONG-LASTING
DPF Filter DOES NOT Need to be Cleaned/Replaced Until 650,000 Miles @ >8.2 MPG
ROBUST & COMPACT
Allows Less Heat Loss & Helps Improving the Fuel Economy & Packaging
AFTERTREATMENT SYSTEM
2 years, unlimited miles, unlimited hours
View additional details and specifications about the S13 Integrated Powertrain.
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