The NEF Series is the most compact, efficient and cost-effective engine solution in the 6 to 18 tons tru​ck, bus and coach category.

The NEF family includes by a 6-cy​​linder, 6-liter CNG version that offers unpaired sustainability.

Natural gas is the most eco-friendly fuel for internal combustion engines, capable of bringing significant environmental advantages:

• it improves local air quality nearly eliminating air pollutants,
• it mitigates global warming by significantly reducing CO2 emissions
• and it significantly lowers engine noise.

These eco-benefits come together with a competitive TCO – thanks to the well-tested reliability and fuel economy of our natural gas technology.

​As all NEF engines, this can be customized upon demand with a rich set of options. ​

20 YEARS NATURAL GAS EXPERIENCE
COMPATIBLE WITH CNG, LNG AND BIO-METHANE
STOICHIOMETRIC COMBUSTION TO ASSURE BEST IN CLASS FUEL CONSUMPTION AND LOWER NOISE THAN DIESEL
FUEL COST SAVINGS VS DIESEL OF UP TO 30%

N60-150kW-NG

Cylinder Arrangement: 6L
Air Feeding: TCA
Displacement [liters]: 6.0
Injection System: MPI
Exhaust system: 3 WAY CATALYST
2700 rpm [kW]: 150

Emission: Euro VI-D

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Arrangement

L (in line)
V (90° "V" configuration)

Air Handling

TCA (Turbocharged with aftercooler)
TC (Turbocharged)
NA (Naturally Aspirated)

Injection System

M (Mechanical)
ECR (Electronic Common Rail)
EUI (Electronic Unit Injector)
MPI (Multi Point Injection)

Exhaust System

EGR (Exhaust Gas Recirculation)
SCR (Selective Catalytic Reduction)

Key Advantages NEF

Features

Best in class power and torque density : up to +15% vs. competitors average in 6 L engine range.

New high capacity filters with clogging sensor. Maintenance-free ATS. No parked regeneration. New piston rings design & advanced machining process.

Lean design with no EGR and single stage turbocharging solution.

No changes in cooling package required.

Benefits

Performance increase with same engine displacement and no layout changes. Maximized power, torque and transient response.

Best in class service interval up to 1200 hours. Low running costs over lifecycle. No need to stop equipment during operation. Reduced oil consumption.

Ensuring robustness and durability. Proven system reliability.

Unique solution across emission stages (StageIIIA to StageV).

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