VOLVO PENTA INBOARD DIESEL
D12 550
6 cylinder, 4 stroke, direct injected, turbocharged marine diesel engine
with aftercooler   crankshaft power* 405 kW (550 hp)
* Power rating   see Technical Data
Excellent reliability and 
economy
The D12 550 marine diesel engine is spe 
 cial ly designed and developed for in stal  
la tions in heavy duty commercial dis place  
ment craft, fea tur ing the lat est ad vanced 
die sel technology.
    To meet the tough and demanding re li  
abil i ty and durability demands from op er a 
 tors and fl eet owners, the D12 550 is tried 
and tested in the world's most ex ten sive and 
toughest test program. 40 man years behind 
the design and 25 man years in tests, which 
equals eight times around the world, en 
 sures excellent reliability and du ra bil i ty.
    Excellent drivability is assured with high 
low end and a rich torque curve matched to 
the power outputs for fast and im me di ate 
re sponse.
    Low fuel consumption for long op er a  
tion al range and low operational cost and 
    The electrical control levers are op er at ed   te nance points contributes to the ease of 
emis sion lev els is as sured with:
more smoothly and precisely, requiring 
ser vice of the engine.
  Electronic Unit Injectors 
much less force.
  4 valve technology
Worldwide service support 
    Automatic twin engine synchronization 
  Electronically controlled injection tim ing
reduces noise and vibration levels, and 
in more than 100 countries
  High pressure 8 hole injector nozzles
in creas es service life of engine.
The Volvo Penta parts and service deal er 
  Electronic governing   EDC
    This, in combination with the well bal 
network is a truly international op er a tion 
    This technology combined optimizes 
 anced D12 550 in line six cylinder engine 
with authorized service deal ers around 
en gine performance and effi ciency, en sures  with powerfully dimensioned crankshaft 
the world. These service centers offer 
effi cient combustion by injecting the right 
bear ings and vibration damper on cam 
Gen u ine Volvo Penta parts as well as 
quan ti ty of fuel at the right time which min 
 shaft, en sures smooth, vibration free op 
skilled per son nel to en sure the best pos 
 i miz es quantity of unburned fuel, re duc ing 
 er a tion with low noise levels.
 si ble ser vice. Con tin u ous and thorough 
fuel consumption and ex haust emis sion lev 
prod uct and ser vice train ing en sures that 
Low exhaust emission levels
 els. The Volvo Penta D12 550 fuel system 
Vol vo Pen ta prod ucts are well sup port ed.
The D12 550 advanced diesel technology
is designed to give full output regardless of  greatly contributes to more effi cient com 
D12 550   a true marine 
fuel temperature.
 bus tion with higher power and reduced 
    This technology in combination with the 
engine from a true marine 
nox ious exhaust emissions.
electronic governing, EDC, protects the 
engine company
    The D12 550 is certifi ed according to 
en gine from major breakdowns, which fur 
The D12 550 is a true marine engine, as 
IMO.
 ther enhances the high reliability and long 
it is developed by a true marine com pa ny 
ser vice life for low operational costs.
Easy installation
with the best there is to be found in ma 
The D12 550 gives a time saving and re 
 rine ex pe ri ence and know how, and built 
High quality
 li able installation, as it is a complete de liv  
and as sem bled with the best pro duc tion 
The D12 550 is built in the world's most 
ered com pact and tailor made pro pul sion 
method there is to be found in the world.
high ly automated diesel engine factory line 
sys tem from one single supplier.
    The D12 550 delivers excellent re li  
with a totally robotic machining and as sem bly      Plug in water protected harnesses and 
abil i ty, economy and du ra bil i ty, in com bi  
line with computer controlled audit checks, 
connectors, compact dimensions, and the 
na tion with the high est level of quality.
which ensures the highest quality level.
EDC system ensures an easy, sim ple and 
Operation and comfort
time saving installation. 
Electronic remote controls, push button 
Ease of service and 
twin engine synchronization and change 
maintenance
of active station ensures easy and smooth 
The EDC system features a self di ag nos tic 
op er a tion and maneuvering.
facility. Easily accessible service and main