D2676 – LE421

MAN Engines & Components

Cylinders and arrangement6 cylinders in-line
Operation mode4-stroke diesel engine, watercooled
TurbochargingTurbocharger charge air intercooler and waste gate
Number of valves4 valves per cylinder
Fuel systemCommon Rail direct fuel injection with electronic control
Engine lubricationClosed system with forced feeding, oil cooling and filtering
Type of coolingHeat exchanger with engine and seawater circuit
Engine controlElectronic injection control (EDC)
Electronic engine monitoring including diagnostic unit
FuelDIN EN 590
Technical features
Type designationLE 421
Displacement (l)12.42
Nominal rating1 (kW (hp))382 (520)
Rated speed (rpm)1,800
Torque at rated speed (Nm)2,027
Maximum torque (Nm)2,275
at speed (rpm)1,200 –1,600
Lowest specific fuel consumption (g/kWh)207
Exhaust gas aftertreatment
Exhaust gas statusIMO Tier II

1) The rating is according to DIN 3046/1

Type designationLE 421
A-Overall width (mm)986
B-Overall length (mm)1,795
C-Overall height (mm)1,096
D-Top of engine to crankshaft (mm)674
E-Length of engine from front end to edge of flywheel housing (mm)1,527
Average weight of engine ready for installation (dry | kg)1,215

For detailed examinations of installation dimensions, please order drawings from our factory.

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