D12 550

Technical Data

  Each cylinder features cross fl ow in let 

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Engine designation .....................................D12D MH

and exhaust ducts

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N:

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KS  PHWULF

No. of cylinders and confi guration ............. in line 6

  Gallery oil cooled forged aluminium pis 

Method of operation.....................................4 stroke,

 tons

                                direct injected, turbocharged

  Three piston rings

                               diesel engine with aftercooler

Lubrication system

Bore, mm (in.) ............................................131 (5.16)

  Integrated oil cooler in cylinder block

Stroke, mm (in.) .........................................150 (5.91)

  Twin full fl ow oil fi lter of spin on type and 

Displacement, l (in

3

) ...........................12.13 (740.2)

by pass fi lter

Compression ratio ........................................... 17.5:1 

Fuel system

Dry weight, kg (lb).................................1400 (3086)

  Six Electronic Unit Injectors, one per cyl 

  5     N:

Dry weight with reverse gear 

 in der, vertically positioned at the center in 

  5     N:

MG5114SC, kg (lb) .............................1603 (3534)

between the four valves

MG5114DC, kg (lb).............................1768 (3898)

  Gear driven fuel pump, driven by tim ing 

5SP

Crankshaft power,

gear

  Electronic controlled central pro cess ing 

7RUTXH

kW (hp) @ 1900 rpm ................................405 (550)

system (EDC   Electronic Die sel Con 

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1P

NSP

Torque,

 trol)

Nm (lbt.ft.) @ 1900 rpm ......................2033 (1499)

  Electronically controlled injection tim ing

Recommended fuel to 

  5 hole high pressure injector noz zles

conform to ......................... ASTM D975 1 D & 2 D,

  Single fi ne fuel fi lter of spin on type, with 

.............................................. EN 590 or JIS KK 2204

water separator

Specifi c fuel consumption,

Turbocharger

g/kWh (lb/hph) @ 1900 rpm................ 217 (0.352)

  Fresh water cooled turbo charger

Technical data according to ISO 3046 Fuel Stop Power and 

ISO 8665. Fuel with a lower calorifi c value of 42700 kJ/kg and 

Cooling system

density of 840 g/liter at 15  C (60  F). Merchant fuel may differ 

  Fresh water cooled charge air cooler

from this spec i fi  ca tion which will infl uence engine power output 

and fuel con sump tion.

  Gear driven coolant pumps

Rating: 2

  Tubular heat exchanger or single cir cuit 

The engine is certifi ed according to IMO.

keel cooling

5SP

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Technical description:

Electrical system

   $W IXOO ORDG

  24V electrical system, 24V/60A al ter  

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Engine and block

86 JDO K

na tor

  Cylinder block and cylinder head made of 

Reverse gear

cast iron

  MG5114SC/DC, elec tri cal ly shifted

  One piece cylinder head

  Replaceable wet cylinder liners and valve 

Optional equipment

seats/guides

Contact your Volvo Penta representative.

  Drop forged crankshaft with induction hard 

 ened bearing surfaces and fi llets with sev en 

Not all models, standard equipment and accessories are 

main bearings

avail able in all countries. All spec i fi  ca tions are sub ject to 

change without notice.

  Four valve per cylinder layout with over head 

The engine illustrated may  not be entirely identical to pro 

  5     N:

camshaft

 duc tion standard engines.

  5     N:

5SP

Dimensions D12 550 with MG5114SC

Not for installation

enta.

olvo P

AB Volvo Penta

SE 405 08 Goteborg, Sweden

10  2002.    2002 AB V

www.volvopenta.com