THE N10 Engine
Up to 350 HP, Up to 1,150 ft.-lb. Torque, 2,200 RPM
The N10 is built on the same proven I-6 platform as Navistar’s legendary and industry-leading DT engine. This I-6 design grew from a big idea: bring to the mid-range diesel market traditional big bore features like wet-sleeve design and in-chassis rebuild capability. This model, which brings increased 9.3-liter displacement by longer stroke, meets the requirements of more demanding applications. The high-output N10 offers these features plus the performance you would expect from larger heavy-duty engines in a weight-saving medium-duty package. This engine, which retains the platform’s legendary reliability and durability, ensure your trucks and your business will be "Always Performing."
POWER & PERFORMANCE
The N10 is purpose-built to the needs of International customers. They are compatible with a full range of automatic and manual driveline options and thousands of potential build configurations to serve the broadest range of on- and off-highway applications. Ratings offer up to 350 hp and 1150 lb.-ft. of torque. Shift energy management technology allows for higher peak torque when used with select transmissions.
N10 engines use dual sequential turbochargers to deliver powerful performance for any job. The smaller, primary turbo responds quickly for immediate take-off at low engine speeds, and the larger, secondary turbo provides peak power at higher speeds and on steep grades. Equipped with Dual Fixed Geometry turbochargers in series means:
- Less moving parts and complexity for more reliable performance
- Wastegate prevents high bearing loads and overboost
- Excellent throttle response
The N10 also features full power off idle, strong launch performance with first high pressure turbo, second low-pressure turbo provides high air flow for consistent highway speed and fewer moving parts means lower cost of replacement than VGT and sliding nozzle turbo. The electro-hydraulic high-pressure fuel system features new high-efficiency injector nozzles and advanced electronic control strategies for fuel economy gains.
A rock-solid, time-tested platform ensures legendary reliability. For the new generation, Navistar engineers carried forward the proven technologies and components like:
- Premium plateau-honed cylinder design
- Reinforced bearing-cap ladder
- Durable roller cam followers
For changes outside the base engine design, the intention was to further improve reliability. Foremost among these changes are dual sequential free-wheel turbochargers and a premium wiring harness, which utilizes a single foam-molded design that locks down wiring and secures connections. These engines feature precision-machined wet-sleeved design that provides heavy-duty engine durability. Six bolts per cylinder provide head-gasket integrity for long service life. Premium valvetrain components and low-friction roller cam followers further increase engine life. Adding to the appeal of this engine is its ability to be completely re-built in-chassis. As a result, the engine can be returned to original factory specifications for a lot less than the cost of remanufacturing, which gives them a strong value advantage at resale.
The N10 features the same precision-machined wet-sleeved design that provides heavy-duty engine durability. Six bolts per cylinder provide headgasket integrity unmatched by competitive four-bolt designs. Premium valvetrain components and low-friction design further increase engine life. Adding to the appeal of this engine is its ability to be completely re-built in-frame. As a result, the engine can be returned to original factory specifications for a lot less than the cost of remanufacturing, which gives them a strong value advantage at re-sale. Over the past 10 years, the average residual value of N-powered International medium-duty trucks has outpaced the competition by 12–19 percent.
N10 ENGINE SPECS
Inline 6 Cylinder
9.3 L (570 cu. in.)
Bore & Stroke
4.59 in. & 5.75 in.
Two-Stage Turbochargers, Intercooler & Aftercooler
Total Engine Weight
L 45 in. x W 42 in. x H 47 in.
4 Valves per Cylinder
350 Design Life
Change Engine Oil/Filter
Replace Fuel Filter
CHOOSE YOUR TRUCK: N10
If you’ve got a job to do, International® DuraStar® will help you get it done. That’s because in the world of medium-duty trucks, DuraStar is the one truck that has always delivered. It goes beyond efficiency, durability and driver satisfaction. DuraStar also has a well-earned reputation for adaptability, an ability to handle just about any task. Whether it’s towing cars off the highway in a snowstorm, repairing downed power lines, or racing to a fire, DuraStar is a rugged performer that always answers the call. The success of your business depends on a truck that performs efficiently. Which is why DuraStar® was designed from the ground up to run effectively, for maximum productivity.Download Brochure
No matter what you throw at it, there’s just no stopping WorkStar.® With the broadest range of available powertrain options, it can muscle its way through even the heaviest loads and the most rugged jobs. Couple that power with an electrical system that offers body control functionality and more efficient diagnostics, and you’ve got a truck with the brains and brawn to keep your business running at its best. Huck-bolted frame and crossmember system designed for maximum vocational durability with a number of frame-rail options.Download Brochure