The International® S13 Integrated Powertrain
Advanced. Integrated. Undisputed. 
Offering superior operating economy, stellar performance and a simple, easy-to-service design, the new International S13 Integrated Powertrainwill not only Shift What's Possible for the industry, but for our customers as we move forward on the path to more sustainable mobility.
The S13 is the lightest 13-liter diesel engine available in North America. It can operate at low RPMs with high torque which equates to
less fuel consumption while still delivering up to 515 horsepower and 1,850 lb-ft of torque.
Available in: LT Series, RH Series, and HX Series
Up to a 15% Boost in Fuel Efficiency*
- New double overhead cam design directly equates to less fuel being consumed.- New Dual Stage Aftertreatment System eliminates need for heavy, expensive and finicky EGR cooler
- 100% of exhaust flow goes through the new simple, more reliable fixed-vane turbo charge for superior operating economy
Providing Stellar Performance for Drivers
- Smooth and quiet operation- Full torque available at only 900 rpm
- Wide gear ratio delivers optimal efficiency in flat areas and performace on hilly terrain
- New compression release brake delivers strong, secure braking power (up to 469hp at sea level) when descending
All-New, Fully Automated T14 Manual Transmission
- 14-speed overdrive transmission that is optimized to deliver peak fuel economy performance in direct drive (13th gear) during typical load- Electronically controlled clutch actuator works in sync with engine for faster, smoother shift performance
- Driver never needs to stop and let the air recharge
- Uses an integrated oil to water coolant system to optimize temperature regulation in both hot and cold environments
T14 Transmission Key Benefits:
- Deep low-end gearing and shifting smoothness, delivering efficiencies of a direct drive in an overdrive package
- 14 speed with 2 crawler gears
- A lightweight, efficiently packaged and robustly designed gearbox
- Single counter shaft transmission designed for simplicity and reliability
Simple, Easy-to-Service Design Providing Uptime
- Designed so that engine operates with zero cooled EGR during regular operation, resulting in generation of more power- 100% of exhaust flow goes through the turbo allowing the use of a simple, more reliable fixed vane turbocharger
- Dual Stage Aftertreatment Design injects a first dose of DEF just downstream of turbo in evaporator tube and second dose inside the aftertreatment container
- Less soot or particulate matter results in extended service intervals as well as elimination of need for active regens
The S13 Integrated Powertrain optimized for whatever the task may be and designed to take your business to the next level. The S13 Integrated is available in the LT Series, the RH Series and the HX Series.
View our S13 Videos page, additional S13 Integrated Specifications & Key Benefits, S13/T14 Driver's Guide and more at www.internationaltrucks.com/engines/s13integrated
View video content on the revolutionary International S13 Integrated Powertrain:
*Comparing the fuel economy of the 2017 GHG International® A26 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.