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S13 Powertrain

INTRODUCING THE
INTERNATIONAL ® S13
INTEGRATED POWERTRAIN

International S13 Powertrain:
Is This the Most Fuel Efficient Semi Truck?

ADVANCED. INTEGRATED. UNDISPUTED

A clean sheet of paper and decades of experience. That’s what the engineering team started with when they began work on the International S13 Integrated Powertrain. And this wasn’t just any team. This was a dream team of engineers located around the globe. It was thanks to this spirit of partnership, this deep collaboration between companies, that we were able to shift what’s possible and rethink, redesign and reinvent what an integrated powertrain can be.
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A POWERFUL SHIFT FORTHE VOCATIONAL MARKET

By combining the legendary strength of the HX Series with the stellar performance, enhanced serviceability and superior operating economy of the S13 Integrated Powertrain, International engineers were able to shift what’s possible and redefine what a severe service truck is capable of.
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UP TO A 15% BOOST IN EFFICIENCY FOR ON-HIGHWAY

Delivering superior operating economy.
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. Thanks to the new Dual Stage Aftertreatment system, the heavy (40-50 lbs), expensive ($2,500 approx.) and finicky EGR cooler is no longer needed to reduce emissions. Its absence not only contributes to the S13 being the lightest 13-liter diesel engine available in North America, but it also means 100% of the exhaust flow goes through the new simple, more reliable fixed-vane turbo charger for maximum performance and efficiency.

Delivering The Goods

The S13 Engine can operate at low RPMs with high torque which equates to less fuel consumed while still delivering up to 515 horsepower and 1,850 lb-ft of torque. This incredible engine brings undisputed economy through combustion efficiency, the reduction of friction and pumping losses, and through use of new integrated software and controls.

S13 Integarted Engine

A DRIVER'S ENGINE

Providing stellar performance for those behind the wheel.

Keeping the driver comfortable, informed and empowered has been a mantra at International® Truck for decades as part of our DriverFirst™ Philosophy. The International S13 Integrated Powertrain takes it a step further by offering a smooth and quiet operation with superior capabilities. 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 469 hp (at sea level).

Making The Shift

The all-new, fully automated T14 manual transmission was designed in-house from the ground up. It’s a 14-speed overdrive transmission that is optimized to deliver peak fuel economy performance in direct drive (13th gear) during typical load. 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. This advanced feature is one reason why the T14 is able to achieve an unlimited Gross Combination Weight Rating (GCWR

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UPTIME ABOVE ALL ELSE

A design that’s simple, elegant, and easy to service.
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.

Next-Gen Aftertreatment

Because there’s no EGR during regular operation, NOx must be treated 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 a 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 regens. In fact, the cleaner combustion cycle has 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.
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Unmatched
Drivability

Tough ,Durable
And Strong .

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efficient combustion cycle

The S13 Integrated engineers paid special attention to the design of the combustion chamber and exhaust posts to enhance the performance and efficiency of the engine. Through exhaustive simulation work 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.
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transmission highlights

The S13 Integrated T14 Transmission features a revolutionary design. The reverse gearing is accomplished by using the planetary gears which helps reduce the overall weight and size of the unit, making room for chassis packaging and PTO.

THE S13 INTEGRATED
POWERTRAIN ISNOW AVAILABLE FOR THE
HX® SERIES, LT® SERIES, AND RH®

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S13 Integrated Specifications & Key
Benefits

S13 Integrated Specifications & Key Benefits
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)
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Camber S13 Engine

What Makes the S13 One of the Most Fuel Efficient Semi Trucks?

Fuel efficiency is one of the most important factors when choosing a semi truck. The International S13 Integrated Powertrain is designed as a complete system, combining the engine and transmission to reduce energy loss and improve real-world fuel performance.

Unlike traditional setups, the S13 focuses on efficiency across highway speeds, helping fleets and owner-operators lower fuel costs over time.

How Much Fuel Can You Save with the S13?

Fuel efficiency improvements can significantly reduce operating costs over the life of a truck. Even small MPG gains can result in thousands of dollars in annual fuel savings depending on route, load, and usage.

The S13 powertrain is designed to help maximize efficiency without sacrificing performance, making it a strong option for long-haul applications.

Frequently Asked Questions About the S13 Powertrain

Is the S13 the most fuel efficient semi truck?
The S13 is designed to improve fuel efficiency through full system integration, making it one of the most efficient options available for long-haul trucking.

What trucks come with the S13 powertrain?
The International LT series is the primary truck equipped with the S13 integrated powertrain.

Is the S13 better than Cummins X15?
The S13 focuses on integrated efficiency, while the X15 is a traditional engine platform. The best choice depends on application and preference.

Where can I buy an S13 truck?
You can view available inventory at Pliler International or contact the dealership for availability.

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