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NEF is the highest expression of engine versatility andefficiency made available by IVECO to the customers. Theyare highly innovative engines, designed to comply todaywith future exhaust gas and noise emission regulations. NEFis a range of 3,4,6 cylinder Diesel engines that can becustomized in a wide variety of ways, with traditionalinjection systems complemented by a common rail fuelsupply system with total electronic control.

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POWER, ECONOMY,RELIABILITY

FOR EVERY AUTOMOTIVE, INDUSTRIAL,AGRICULTURAL, MARINE

AND POWER GENERATION DUTY

Designed with innovative techniques and manufac-tured with cutting edge work and assembly processes,the engines of the NEF range are the result of morethan 100 years of engine-making tradition and of theconstant effort that IVECO, a worldwide leader in powertrain systems, invests into research, to find improved andmore advanced technologies.

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The implementation of new criteria with greater definitionof the control parameters, that determine the combustionprocess and injection control, results in new balance betweenhigh performance and fuel economy.

The use of waste-gate controlled turbines allows for thehighest torque levels in a wide range of rpm settings, whileassuring an effective delivery of high power. Modernproduction processes are employed for the engine and itscomponents, the controlled combustion inside the cylin-ders with near perfect filtration and cooling treatment, hasresulted in extremely low lubrication oil consumption.

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EXTRAORDINARYVERSATILITY

A WIDE SELECTION OF CONFIGURATIONSPROVIDES THE POSSIBILITY TO TAILOR

THE ENGINEERING SOLUTIONTO THE CUSTOMER’S REQUIREMENTS

The 3, 4, and 6 cylinder NEF engines are available in manydesign solutions such as two-and four-valve cylinders, naturalor supercharged induction, and structural engine blocksfor load-bearing purposes. The range of engines equippedwith electronic control allows for customization powermatching, since the engine’s performance can be adaptedto each specific usage profile. Interfacing on the CAN dataBus, the Central Unit exchanges data with other electronicUnits connected to the application and complementing thedifferent system requirements to manage the engine inunique fashion; the impressive availability of structural andapplication options enhances versatility.

- Traditional or structural engine blocks- Lubrication oil sumps of suitable shape and size- Oil and fuel filters variable by number, type and position- SAE 1 – SAE 2 – SAE 3 flywheel housing- Coupling flywheels for different type of driveline- Intake and exhaust manifolds adapted in shape and position- Cooling fans tailored by type and position- Front and rear power takeoffs up to 240 Nm- Shafts and balancing masses- Hydraulic oil pumps as required- Single and twin cylinder air compressor- A/C compressor for air and liquid- Suitable heat exchangers- Starting aid systems- 12 or 24 V service and monitoring electrical systems

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DESIGNEDFOR OUR FUTURE

UNCOMPROMISING EXHAUSTGAS AND NOISE EMISSION REDUCTION

NOISE LEVEL BELOW 91-95 dBA

A perfect combustion process enables not only the reductionof hydrocarbon and nitrogen oxide emissions, but alsoreduces fuel burning, thereby assisting in curtailing thegreenhouse effect. The reduction of noise emissions, providedby a rigid structure, has been improved with the adoptionof rubber gaskets on cover and sump. Further enhancementsare due to the pilot injection which, by facilitating a progressiveand complete combustion, softens the typical Diesel engineknock. With a noise level of 91 dBA, 95 dBA with mechanicalpump, (at rated power) they are in absolute terms thequietest in their respective category of use. They complywith all major certification standards today, in terms ofgaseous emissions, EPA-CARB, directive CE, with noconsumption penalties, and the engineering solutions adoptedhave allowed for a considerable reduction in operatingcosts, thanks to extented operating times betweenmaintenance.

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TOP PERFORMANCE ANDEFFICIENCY

EXCELLENT TECHNOLOGICAL SOLUTIONSFOR THE HIGHEST POSSIBLE

PERFORMANCE / VALUE RATIO

The excellent performance of NEF engines originates inthe new-design intake and exhaust ducts where the gasexchange phases and intake air turbulence are optimizedand the potential of the new injection systems is fully utilized.A perfect diffusion of the spray thus sets the stage for aprogressive and complete combustion of the injected fuel,thereby providing for the high thermodynamic efficiencythat enables to deliver the best performance in terms oftorque and power, as well as fuel economy. The widerange of engines equipped with rotary or in-line pumpinjection system is further broadened by those fitted withthe Common Rail system with total electronic control.

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kW

240

180

120

60

0900 1500 2100 2700 rpm

Nm

1200

800

400

0

POWER

TORQUE

Marine * Power Generation * *

kW

200

150

100

50

0900 1500 2100 2700 rpm

Nm

1200

800

400

0

POWER

TORQUE

kW

200

150

100

50

0900 1500 2100 2700 rpm

Nm

1200

800

400

0

POWER

TORQUE

Industrial - Agriculture *Automotive *

* Maximum performance in accordance with the specific DirectivesISO 3046/1-DIN 6271- BS 5514-SAE J 1349 Test Conditions* * Maximum performance in accordance with ISO 8528

kW

200

190

180

01500 1800 rpm

STAND-BY

210

220

PRIME

PRIMESTAND-BY

TOTAL ELECTRONICCONTROL

COMMON RAIL, NEW FRONTIERFOR INJECTION SYSTEMS, WITH 1500 BAR

PRESSURES ACHIEVES OPTIMUMFUEL ATOMISATION

FOR THE BEST POSSIBLE COMBUSTIONUNDER ANY OPERATING CONDITION.

Injection control by the Electronic Central Unit allows forthe greatest flexibility in fuel supply management, drivingfuel delivery according to the requirements of the engine’smission profile. In addition to providing for independentfuel injection management in each cylinder, the electroniccontrol also monitors the operating conditions and checksthe engine’s efficiency, offering total safety, even whenconditions are extremely demanding.

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ELECTRO-INJECTOR 1

ELECTRO-INJECTOR 2

ELECTRO-INJECTOR 3

ELECTRO-INJECTOR 4

INJECTION PRESSUREADJUSTMENT

PRE-HEATING

ACCELERATOR

ENGINE SPEED

INJECTION SEQUENCE

INTAKE AIRTEMPERATURE

ENGINETEMPERATURE

FUELTEMPERATURE

OILTEMPERATURE

INTAKE AIRPRESSURE

ATMOSPHERICPRESSURE

FUELPRESSURE

OIL PRESSURE

KEY ON/OFF

BATTERY

Bus CAN

SYSTEM PERFORMANCE- Computation of injection quantity and advance- Combustion verification- Management of starting aid systems- Isochronous control over engine rpm setting- Optimized acceleration transient management- Balancing torque delivery among the cylinders

- Injection compensation with engine and fuel temperature variations- Tailoring operation to different environmental conditions- Limiting engine torque and maximum rpm- Managing the PTO rpm and the torque increase mode- Recording operating events: hours, consumption, utilization factors- Communication with other electronic units connected to the application on “CAN”network- Self-diagnosis of critical operating factors- Alarm indication in preventive, present, critical mode- Communication with programming and diagnosing tools

THE ARTOF FABRICATION

CUTTING EDGE SOLUTIONS AND SELECTIVEPROCESS CONTROLS ASSURE THE QUALITY

OF A HIGH TECH DESIGN

NEF is the result of the experience accumulated withmillions of engines manufactured and placed in serviceworldwide, in the most demanding applications, and itsdesign takes into account this vast experience, avoiding anycompromise that could detract, even to a minimal extent,from its best behavior. NEF was conceived and developedas a robust design. Design solutions inherited from heavy-duty engines and the absolute precision of the workprocesses assure the highest possible operating reliabilityand long life.

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EXTRAORDINARYVERSATILITY

A WIDE SELECTION OF CONFIGURATIONSPROVIDES THE POSSIBILITY TO TAILOR

THE ENGINEERING SOLUTIONTO THE CUSTOMER’S REQUIREMENTS

The 3, 4, and 6 cylinder NEF engines are available in manydesign solutions such as two-and four-valve cylinders, naturalor supercharged induction, and structural engine blocksfor load-bearing purposes. The range of engines equippedwith electronic control allows for customization powermatching, since the engine’s performance can be adaptedto each specific usage profile. Interfacing on the CAN dataBus, the Central Unit exchanges data with other electronicUnits connected to the application and complementing thedifferent system requirements to manage the engine inunique fashion; the impressive availability of structural andapplication options enhances versatility.

- Traditional or structural engine blocks- Lubrication oil sumps of suitable shape and size- Oil and fuel filters variable by number, type and position- SAE 1 – SAE 2 – SAE 3 flywheel housing- Coupling flywheels for different type of driveline- Intake and exhaust manifolds adapted in shape and position- Cooling fans tailored by type and position- Front and rear power takeoffs up to 240 Nm- Shafts and balancing masses- Hydraulic oil pumps as required- Single and twin cylinder air compressor- A/C compressor for air and liquid- Suitable heat exchangers- Starting aid systems- 12 or 24 V service and monitoring electrical systemsT

EC

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SELECTFOR SUCCESS

ENGINEERING SOLUTIONSCAREFULLY STUDIED TO ASSURE PERFECT

PRODUCT QUALITYAND THE LOWEST OPERATING COSTS

Availability of more than 20 different structural options.Traditional or total electronic control injection systems.Configuration designed to provide optimal access toevery part of the engine and to reduce maintenancetime. Limited number of components: 40% fewer thanengines with equal performance levels. ”Electronic”forecast of ordinary and extraordinary maintenance.Check of valve-rocker arm play after 4,000 hours.Replacement of lubrication oil and filters after an operatingtime up to 1,000 hours.

- Rear control of the timing system- Extra strong engine block with provisions for overhaul- Optimized cooling circuit for perfect temperature stabilization- Lubrication oil sump coupled to the engine block with rubberized gasket- Over sized dimensioned drive gear train- Drive shaft made of induction hardened steel or cast iron- New design connecting rods characterized by the perfect geometry of their end cap assembly- Aluminum – nickel pistons for better heat dissipation and smaller moving masses- Front – end configurable with many accessories

ENGINE CYLINDERS 3 cylinders 4 cylinders 6 cylindersAND ARRANGEMENT inline inline inline

displacement cm3 3364 3920 4485 5880 6728

bore mm 104 102 104 102 104

stroke mm 132 120 132 120 132

valves/cylinder n° 2 2 4 2 4 2 4 2 4

air feeding NA - TC TC TAA NA-TC TAA TAA TAA NA-TC TAATAA TAA TAA

injection system MEC MEC EL MEC EL MEC EL MEC EL

cylinder block S N S - N N S - N

dimensions L mm 650 - 760 770 - 880 1010 - 1120W mm 585 - 700 585 - 700 585 - 700H mm 800 - 920 800 - 920 800 - 920

weight * Kg 300 310 440

NA: naturally aspirated – TC: turbocharged – TAA: turbocharged after cooledMEC: mechanical injection pump – EL: with electronic controlS = structural – N = not structural * dry weight for basic configuration engine

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IVECO S.p.A.IVECO Motors

Lungo Stura Lazio, 4910156 Torino - Italy

Tel. +39 (011) 0076245Fax +39 (011) 0076275www.ivecomotors.com

IVECO FRANCE S.A.IVECO Motors

50 Rue Ampère – B.P. 10369685 Chassieu Cedex – France

Tel. +33 (04) 72472222Fax +33 (04) 78905990

IVECO SWEDEN A.B.IVECO Motors

Lergöksgatan, 1242150 Västra Frölunda - Sweden

Tel. +46 (31) 492450Fax +46 (31) 492457

IVECO N.V.IVECO Motors

Liaison office-India52 Okhla-Industrial Estate

Phase III110020 New Delhi - IndiaTel. +91 98 10403881 - 2

Fax +91 11 51613573

IVECO L.A.IVECO Motors

Rua Alameda da Serra, 222Vale do Sereno - Brazil

34000 – 000 Nova Lima (MG)Tel. +55 (31) 3286 3732/33/34

Fax +55 (31) 3286 3735

IVECO S.p.A.IVECO MotorsViale dell’Industria, 15/1720010 Pregnana Milanese, (MI) - ItalyTel. +39 (02) 935101Fax +39 (02) 93590029

IVECO MAGIRUS A.G.IVECO MotorsHeiner Fleischmann-Straße, 974172 Neckarsulm – GermanyTel. +49 (07132) 976990Fax +49 (07132) 976935

IVECO U.K. LtdIVECO MotorsRoad One – Industrial EstateCW7 3QP Winsford – U.K.Tel. +44 (01606) 541027Fax +44 (01606) 541124

IVECO FIATRepresentative Office in P.R.China10/F Jinling HotelWorld Trade Center 2 Hanzhong Road210005 Nanjing - ChinaTel. +86 (25) 4710981Fax +86 (25) 4701105

IVECO MOTORS OF N.A.245 E. North AvenueCarol Stream, IL 60188 – 2021 USATel. +1 630 260 42 26Fax +1 630 260 42 67

HEAD OFFICES AND BRANCHES

Publication edited by IVECO MotorsC.O. Mkt. Advertising & PromotionIVECO - Pregnana MilaneseEd. 02/04 P0G01Z001E

The information provided herein is current as of the publication date. The figures illustrateonly a few of the countless possible configurations and layout of the engines.The manufacturerreserves the right to make modifications at any time and without advance notice, to meettechnical or commercial requirements or to comply with legal and regulatory requirement.

Publication edited by IVECO MotorsC.O. Mkt. Advertising & PromotionIVECO - Pregnana MilaneseEd. 02/04 P0G01Z001E

The information provided herein is current as of the publication date. The figures illustrateonly a few of the countless possible configurations and layout of the engines.The manufacturerreserves the right to make modifications at any time and without advance notice, to meettechnical or commercial requirements or to comply with legal and regulatory requirement.