N9

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N

10

BUILT TOUGH FOR DEMANDING WORK

Built on Navistar’s proven I-6 platform, the N9 and N10Built on Navistar’s proven I-6 platform, the N9 and N10engines come with reliability and durability built-in.engines come with reliability and durability built-in.The I-6 design grew from a big idea: bring traditional The I-6 design grew from a big idea: bring traditional big bore features like wet-sleeve design and in-chassis rebuild capability to the mid-range diesel market. These models, which bring 9.3-liter displacement by longer stroke, meet the requirements one would expect from stroke, meet the requirements one would expect from larger heavy duty engines in a weight-saving medium-duty package. And now with selective catalytic reduction duty package. And now with selective catalytic reduction (SCR), the N9 and N10 engines off er enhanced fuel economy along with the platform’s proven performance economy along with the platform’s proven performance and durability. It’s the best of both worlds – fuel economy and durability. It’s the best of both worlds – fuel economy and durability – and it’s all delivered in two engines that and durability – and it’s all delivered in two engines that are made toget any job done.are made toget any job done.

N 9 | N 10 SPEC IF ICAT IONS

The N9 and N10 engines off er the following proven advantages:

Serves the broadest range of on- and off -highway applications with six diff erent model ratings from 275-350 hp and 860-1150 lb.-ft. of torque

Durability:Precision-machined wet sleeves result in even cylinder cooling and unmatched structural integrity and rebuilding capability Premium valvetrain components and low friction design for

increased engine life. Roller cam followers provide increased durability, longer valve and camshaft life and slow valve lash growth compared with competitive fl at tappets. Replaceable valve seats and guides allow for easy cylinder head rebuild. Four valves per cylinder provide effi cient breathing, performance and lower emissions

Large main bearings for increased, heavy-duty durability when compared to competitive designs

Six head bolts per cylinder in the crankcase for even clamping and increased head gasket life Crankcase ladder reinforcements for added strength and rigidity

– maintaining perfect alignment of crankshaft under heavy loads – all while reducing engine noise

Precision-machined wet sleeves result in even cylinder cooling and unmatched structural integrity

Performance: Shift energy management technology allows for higher peak

torque when used with select transmissions Advanced electro-hydraulic high-pressure fuel system features

new high effi ciency injector nozzles and advanced electronic control strategies for fuel economy gains

Regulated two-stage turbocharger and upgraded cooling system provide outstanding boost and response for every application

The optional engine brake by Jacobs™ provides quiet braking power and can extend the life of service brakes, resulting in lower service costs

Serviceability: Single box 32-bit ECM has fewer connection points for added

reliability and easier serviceability Foam molded wiring harness secures wiring and connections

for increased reliability and durability

Horsepower(bhp @2000 rpm)

Torque Peak(lb.-ft. @1200 rpm)

Gov. Speed(rpm)

Clutch Engagement Torque(lb.-ft. @800 rpm)

275 860 2200 750300 860 2200 750315 950 2200 750

Horsepower(bhp @2000 rpm)

Torque Peak(lb.-ft. @1200 rpm)

Gov. Speed(rpm)

Clutch Engagement Torque(lb.-ft. @800 rpm)

310 1050 2200 750330 1150 2200 750350 1150 2200 750

Preventative Maintenance IntervalsChange Engine Oil, Replace Oil Filter: 27,500 miles (47,257 km) / 6 months / 600 hours / 3,300 gallons (7,949L)Replace Fuel Filter:35,000 miles (56,327 km) / 12 months / 1,100 hours / 4,200 gallons (15,899L)Replace Coolant*:300,000 miles (482,803 km) / 5 years / 12,000 hours

Preventative Maintenance IntervalsChange Engine Oil, Replace Oil Filter: 27,500 miles (44,257 km) / 6 months / 600 hours / 3,300 gallons (7,949L)Replace Fuel Filter:35,000 miles (56,327 km) / 12 months / 1,100 hours / 4,200 gallons (15,899L)Replace Coolant*:300,000 miles (482,803 km) / 5 years / 12,000 hours

N 9 PERFORMANCE DATA

N 10 PERFORMANCE DATA

N 9 | N 10 SPEC IF ICAT IONS

*Add Extended Life Coolant (ECL) Extender @ 150,000 miles (241,400 km) / 30 months / 6,000 hours.** B50 design life is the mileage that 50% of the engine population would exceed without failure requiring the removal of the oil pan, cylinder head,

front gear train, or an in-frame overhaul. Jacobs is a registered trademark of Jacobs Vehicle Systems Inc.

Confi guration Inline 6-cylinder Displacement 9.3L (570 cu in.) Bore and Stroke 4.59 in. & 5.75 in. (11.7 cm & 14.6 cm) Compression Ratio 16.5:1 Aspiration Dual Sequential Turbochargers, Intercooler & Aftercooler Combustion System Direct Injection Engine Lubrication 30 Quarts (28L) Total Engine Weight (dry) 1,896 lbs (860 kg) Valves 4 Valves per Cylinder B50 Design Life** 850,000 mi. (1,367.942 km)

N 9 SPECS

Confi guration Inline 6-cylinder Displacement 9.3L (570 cu. in.) Bore and Stroke 4.59 in. & 5.75 in. (11.7 cm & 14.6 cm) Compression Ratio 16.5:1 Aspiration Dual Sequential Turbochargers, Intercooler & Aftercooler Combustion System Direct Injection Engine Lubrication 30 Quarts (28L) Total Engine Weight (Dry) 1,896 lbs (860 kg) Valves 4 Valves per Cylinder B50 Design Life** 850,000 mi. (1,367.942 km)

N 10 SPECS

The N9 and N10 engines use selective catalytic reduction technology (SCR) to reduce emissions. Both engines leverage the proven Cummins Aftertreatment System to remove particulate matter. Used across North America and thoroughly tested under the most extreme conditions, Cummins off ers unrivalled emissions technology experience. With SCR emissions technology the N9 and N10 engines deliver:Improved fuel economy Enhanced throttle response and accelerationReduction in exhaust soot and fewer DPF regenerations

Note: Specifi cations and descriptions in this literature are as accurate as known at time of publication, but are subject to change without notice. TAD14017 06/2014©2014 Navistar Inc. All rights reserved. All marks are trademarks of their respective owners. Lithographed in the United States of America.

P E A K T O R Q U E A T L O W E R R P M330 HP / 950 lb . - f t .

P E A K T O R Q U E A T L O W E R R P M350 HP / 1150 lb . - f t .

P E A K T O R Q U E A T L O W E R R P M275 HP / 860 lb . - f t .

P E A K T O R Q U E A T L O W E R R P M310 HP / 1050 lb . - f t .

N 9 | N 10 SPEC IF ICAT IONS

N 9 PER FORMANCE

N 1 0 PER FORMANCE