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Along with performance ratings comparable to many higher displacement engines, the N13 delivers outstanding fuel economy and proven capability.
(hp @ 1700 rpm)
(lb. – ft. @ 1000 rpm)
(lb. – ft. @ 800 rpm)
(CGI) delivers higher strength and more fatigue resistance than traditional gray iron. Navistar has always used compacted graphite iron for the N13 crankcase.
Designed to maximize durability. The no fin design delivers consistent performance by preventing soot plugging. Stainless steel throughout the EGR cooler prevents corrosion. Laser welding delivers excellent thermal fatigue resistance.
The 2200 Bar High Pressure Common Rail Fuel system precisely controls fuel atomization, with multiple injection technology. Smooth engine operation and clean combustion extend engine life.
Allows mounting brackets to be molded into the wiring harness. Bolts secure the wiring harnesses, delivering the most consistent routing and clipping of any wiring harness technology.
Used on the crankshaft main journal bearings and connecting rod bearings. When oil pressure is low, such as while starting the engine, the coatings protect the engine from wear as oil pressure builds.
High pressure common rail (HPCR) with multiple injection events precisely atomize fuel. Combustion efficiency is maximized. Low emissions reduce the frequency of after treatment active regenerations, further reducing fuel consumption.
The integrated oil lubrication module includes a thermostat to regulate oil flow through the oil cooler. In cold conditions, oil bypasses the oil cooler allowing oil to reach operating temperature faster, reducing fuel consumption.
The N13 calibration is fully optimized for a balance between performance and fuel economy.
An optional down-speed rating operates the engine at lower RPM, reducing parasitic drag and pumping losses, improving fuel economy.
Optional programmable parameters such as road speed limiting and predictive cruise control, deliver further fuel savings.
Compacted Graphite Iron (CGI) has significantly higher strength than traditional grey iron, allowing the crankcase to be cast thinner, while delivering the same stiffness and strength.
The aluminum flywheel housing delivers significant weight savings over cast iron.
The hollow camshaft moves material from the center to the outside, delivering the same stiffness with less weight.
Nylon valve covers deliver significant weight savings over aluminum.
The breather, also known as a crankcase oil separator, removes oil from the crankcase gases. The centrifugal design does not require regular filter replacement, reducing service parts cost and time.
Single-stage EGR cooler has been designed for maximum uptime. The EGR cooler’s small size and its ability to leave the EGR valve in place during service make service easy.
A super cartridge service kit allows the turbocharger rotating assembly to be replaced while reusing the housings. Parts and labor cost are reduced significantly.
The fuel doser sprays fuel into the exhaust for active regenerations of the aftertreatment system. The fuel doser sprays air at the end of each use to prevent fuel from dribbling and coking on the tip.