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The International® S13 Integrated Powertrain is the result of deep collaboration between companies that set out to rethink, redesign and reinvent what an integrated powertrain can be. The result is the S13 engine, the T14 transmission and the Dual Stage Aftertreatment system that all work in harmony to deliver superior operating economy and stellar performance in a simple, easy-to-service design.
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SUPERIOR OPERATING ECONOMY
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Through exhaustive simulation work, a new cylinder and piston head design with maximum cooling properties was created. This new double overhead cam design directly equates to less fuel being consumed. But that's not all. Discover how the S13 Integrated Powertrain delivers up to a 15%* gain in fuel economy over the popular first-generation A26.
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STELLAR PERFORMANCE
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The smooth, quiet International S13 Integrated Powertrain brings impressive capabilities to the road. In fact, 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. And when descending, drivers can rely on the new compression release brake to deliver strong, secure braking power up to 469hp (at sea level).
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SIMPLE,
EASY-TO-SERVICE DESIGN
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The entire powertrain was designed to allow each individual component – engine, transmission and aftertreatment – to focus on doing what it does best. Eliminating the EGR cooler is a prime example. Instead of trying to control NOx emissions inside the cylinder, the engine operates with zero EGR during regular operation, so it can focus on generating more power. Plus, no EGR during normal operations means 100% of the exhaust flow goes through the turbo allowing the use of a simple, more reliable fixed vane turbocharger.
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Navistar continues to shift what's possible with the introduction of the International® S13 Integrated Powertrain. Developed over the past five years, the S13 Integrated will bring superior operating economy, stellar performance, and simplicity and serviceability to the North American commercial vehicle market. See the official unveiling.
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*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.
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