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Navistar Launches International S13 Integrated Powertrain in International HX Truck Models

Navistar Launches International S13 Integrated Powertrain in International HX Truck Models

Navistar has launched the International® S13 Integrated Powertrain for International HX truck models. The S13 Integrated Powertrain will benefit vocational customers by achieving stellar performance, simplicity and serviceability, and superior operating economy.

Developed from a clean sheet design, the S13 Integrated Powertrain consists of three distinct components – an engine, a transmission and an aftertreatment system – all designed and developed concurrently to ensure maximized compatibility and integration between systems.

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Engine and Aftertreatment Capabilities Save Time and Capital

The S13 Integrated Powertrain maximizes performance and capitalizes on efficiency made possible through its modular design in global collaboration with the TRATON Group.

The 13-liter International S13 engine achieves advanced fuel efficiency and performance through a clean-burn combustion strategy and a reduction of friction and pumping losses. The S13 engine is Navistar's first engine designed with selective catalytic reduction (SCR) technology as the primary emissions reduction technology. The absence of an exhaust gas recirculation (EGR) cooler on this engine allows for nearly 100 percent of exhaust to flow to the fixed geometry turbocharger, equating to more power and improved engine performance. Additionally, the engine operates on low revolutions and high torque which equates to fewer fuel injections and less fuel consumption, delivering up to 515 horsepower and 1,850 lb-ft of torque.

The compact design of the Dual Stage Aftertreatment is purpose built with easy access for serviceability, as well as significantly improved emissions control and fuel efficiency. To keep temperatures at an optimal range and extend service intervals, the aftertreatment system includes a dual-stage SCR catalyst system in a one-box design.

Since an EGR cooler was eliminated from the combustion process, less soot and particulate matter are generated. This cleaner combustion cycle allows for extended service intervals and eliminates the need for the diesel oxidation catalyst (DOC) and active regeneration.

"Vocational trucks often spend quite a bit of time idling on a job site which has historically required more frequent active regens," said Stasell. "The aftertreatment system of the S13 Integrated Powertrain, combined with the engine combustion strategy, vastly reduces the need for both active and parked regens." 

Transmission and Various PTO Options For Vocational Customer Needs

The International® T14 Transmission, a 14-speed automated manual transmission (AMT), uniquely combines the transmission's low range and six reverse gears through the use of a planetary gear set.

The T14 combines two deep crawler gears and a wide 26.7 overall ratio to provide slow-speed maneuverability, exceptional startability and enhanced performance running to and from the job site.

The T14 Transmission features vocational-specific drive modes including off-road mode, manual mode and paver mode. These drive modes combined with other vocationally focused functionalities, such as split-shaft mode and rocking mode, which breaks the truck free when stuck, prove the T14 is ready for any job.

As part of the clean sheet design, shifting logic and integrated software controls maximize efficiency and performance resulting in gear shifting that is perfectly matched to engine revolutions. The T14 also uses an electronic clutch actuator with controls integrated with the engine to deliver faster, smoother shifting.

Multiple spec'ing options are available for various vocational customer applications including front-engine power take-off (FEPTO), rear-engine power take-off (REPTO) as well as single and dual output transmission PTOs.

All PTO options are factory-installed at Navistar's Integrated Powertrain Plant in Huntsville, Alabama, and carry the warranty of the T14 transmission. The S13 Integrated Powertrain also takes advantage of Navistar's Diamond Logic® electrical system to optimize body integration, convenience and safety features. This provides both chassis upfitters and customers maximum flexibility, simplicity, and functionality. 

Comprehensive Ownership Solutions

The International S13 Integrated Powertrain includes several customer benefits outside of the product itself, including dealer-integrated software, built-in service products and repair maintenance contracts.

Navistar's connected solution, OnCommand® Connection (OCC), comes standard on all International vehicles including those equipped with the S13 Integrated Powertrain. OCC combined with International® 360 provides fleet monitoring and preventive maintenance scheduling to increase uptime and keep customers' businesses operating at maximum efficiency. Customers can also utilize the OCC Go mobile app to monitor their vehicles in real time.

When spec'd for vocational applications, the S13 Engine and Dual Stage Aftertreatment system comes standard with a two-year, unlimited miles and unlimited hours warranty, and the T14 Transmission and factory-installed PTOs feature a three-year, unlimited miles warranty.

For more information about the International HX series truck with the new S13 integrated powertrain, contact your Maxim Sales Rep at 1-800-305-8785