Transition to SCR Emissions Performance and Fuel Economy Regeneration Reliability and Uptime Durability Ratings Summary

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2 Transition to SCR Emissions Performance and Fuel Economy Regeneration Reliability and Uptime Durability Ratings Summary

3 N9 and N10 will be US EPA and CARB Compliant at launch 2010 Emissions without use of credits While the credit strategy is well regarded by the regulatory agencies, some consumers were unable to understand this aspect of regulatory law. As such NOx will be at.20 g/bhp/hr. Compliant with Heavy Duty OBD implemented in 2013 Compliant with Greenhouse Gas Emission requirements implemented in 2014

4 Engine Electroni c Control DEF dosing System DEF heated lines DEF Tank DEF tank requires level sensor, DEF quality sensor, engine coolant circulation and potentially electric heater for cold management HC Doser DEF injector DOC DPF SCR Catalyst AMOC TMV Mixer ENGINE VEHICLE Temperature Sensors NOX Sensors Delta P Sensor

5 Usage of the SCR system allows the engine to be re-tuned bringing both performance and economy gains Relief of some emissions control duty that was on engine to off engine. 90% reduction in soot Throttle response improved EGR cutback reduces turbo lag Economy gains up to 8% over previous generation of engine.

6 Significant reduction of soot creation Lowered creation means less need for regen Greater levels of oxygen in exhaust increases DOC efficiency which enhances regen, both passive and active Change in NOx from engine increases DPF efficiency Better on-site job performance Less need for fuel to perform regen

7 Lessons learned and continuous improvement has resulted in reliable components and systems. EGR Cooler Better design, location, plumbing Injection Control and Injectors Improvements to IPRV, ICP sensor, Injectors and High Pressure Oil rail Elimination of risk points Open breather eliminates turbo fouling Improved baffling Improved Breather Valve cover baffle

8 Premium construction Stress relieved block Heavy duty wet sleeve design High cylinder head clamp load Ladder bearing cap reinforcement Large bearing surface size Fractured and angled connecting rods

9 The N9 and N10 is a premium medium duty engine. Elimination of Risk/Complexity Amid Complicated Requirements: Base Engine Wet Sleeve Large Bearing Surfaces Proven Technologies Emissions Components EGR System Turbocharging DPF Management Other Low Pressure Fuel Open Breather (Crankcase Ventilation)

10 Replaceable wet sleeve design Cylinders are easily replaced and installed Drop into cylinder cavities O-Ringed on bottom Cylinder protrusion ( ) Cylinder head gasket Rebuilds to standard bore size Even cooling around the cylinder Extremely thick

11 Expanded ratings Engine Ratings Brand bhp Torque (lbs-ft) 9.3L = 570 cubic inch Largest MRD in the market N10 9.3L N9 9.3L

12 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. 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

13 Performance: Advanced electro-hydraulic high-pressure fuel system features new high efficiency 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

14 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

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17 N9 and N10 9.3L engine with SCR The largest displacement Medium Range Diesel in the industry provides the power, reliability, and durability expected via excellent design and continuous improvement. This design results in job performance and value unmatched by any other MRD engine in the market today.