MAN Engines
The MAN D3872 workboat engine is a newly developed V12 engine for commercial applications, designed for both light, medium and heavy-duty operation.
for optimum separation of the oil withinthe closed crankcase ventilation system.
for optimised coolant supply.
for optimised coolant supply. This ensures the usual long service life of MAN engines.
for optimum cooling of the oil even at high outputs.
for optimised combustion with the usual low specific fuel consumptions typical of MAN.
In addition to fluidic optimisations, new oil pumps and new oil coolers have also been installed, in order to adjust the oil circulation volumes to the high outputs.
with increased bearing diameters.
with drill hole increased to 138 mm and stroke increased to 165 mm.
for the transmission of the higher combustion forces.
due to increased displacement and for optimisation of combustion.
flow- and cooling-optimised, so as to be able to handle the high outputs.
for optimum gas exchange even at the highest outputs.
fitted as standard for the first time for marine engines. Regular checking and adjusting of the valve clearance is unnecessary.
The impressively high injection pressure is the basis for the low fuel consumptions and outstanding raw emissions typical of MAN engines.
for optimum separation of the oil withinthe closed crankcase ventilation system.
for optimised coolant supply.
for optimised coolant supply. This ensures the usual long service life of MAN engines.
for optimum cooling of the oil even at high outputs.
for optimised combustion with the usual low specific fuel consumptions typical of MAN.
In addition to fluidic optimisations, new oil pumps and new oil coolers have also been installed, in order to adjust the oil circulation volumes to the high outputs.
with increased bearing diameters.
with drill hole increased to 138 mm and stroke increased to 165 mm.
for the transmission of the higher combustion forces.
due to increased displacement and for optimisation of combustion.
flow- and cooling-optimised, so as to be able to handle the high outputs.
for optimum gas exchange even at the highest outputs.
fitted as standard for the first time for marine engines. Regular checking and adjusting of the valve clearance is unnecessary.
The impressively high injection pressure is the basis for the low fuel consumptions and outstanding raw emissions typical of MAN engines.
| Variant | MAN D3872 LE433/436 |
| Arrangement/number of cylinders | V12 |
| Bore | 138 mm |
| Stroke | 165 mm |
| Displacement | 29,6 l |
| Rated power | 2200 hp / 1618 kW |
| Rated speed | 2300 rpm |
| Mean effective pressure | 7358 Nm / 1200-2100 rpm |
| Specific output | 54,7 kW/l |
| Engine length |
2335 mm |
| Engine width | 1153 mm |
| Engine height | 1320 mm |
| Weight (dry) | 2720 kg |
| Injection system | Common Rail |
| Engine control unit | MD1+ |
| Exhaust status |
EPA Tier 3 IMO Tier III IMO Tier II |
| Variant | MAN D3872 LE443/446 |
| Arrangement/number of cylinders | V12 |
| Bore | 138 mm |
| Stroke | 165 mm |
| Displacement | 29,6 l |
| Rated power | 2000 hp / 1471 kW |
| Rated speed | 2300 rpm |
| Mean effective pressure | 6689 Nm / 1200-2100 rpm |
| Specific output | 49,7 kW/l |
| Engine length |
2335 mm |
| Engine width | 1153 mm |
| Engine height | 1320 mm |
| Weight (dry) | 2720 kg |
| Injection system | Common Rail |
| Engine control unit | MD1+ |
| Exhaust status |
EPA Tier 3 IMO Tier III IMO Tier II |
| Variant | MAN D3872 LE432/435 |
| Arrangement/number of cylinders | V12 |
| Bore | 138 mm |
| Stroke | 165 mm |
| Displacement | 29,6 l |
| Rated power | 1650 hp / 1213 kW |
| Rated speed | 2100 rpm |
| Mean effective pressure | 6096 Nm / 1100-1900 rpm |
| Specific output | 41,0 kW/l |
| Engine length |
2335 mm |
| Engine width | 1153 mm |
| Engine height | 1320 mm |
| Weight (dry) | 2720 kg |
| Injection system | Common Rail |
| Engine control unit | MD1+ |
| Exhaust status |
EPA Tier 4 EPA Tier 3 IMO Tier III IMO Tier II |
MAN Engines has approved all marine engines from its current product portfolio for use with regenerative diesel in accordance with the EN15940 standard in Europe and the US specification ASTM D975 of the American Society for Testing and Materials (ASTM). Customers can use it to replace conventional petroleum-based diesel fuel and use so-called green or renewable diesel instead. This is obtained on the basis of waste and residues of animal and plant origin, cellulosic biomass materials such as crop residues, but also so-called HVO (Hydrated Vegetable Oils).
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This website uses third-party content. In order to use the website and its full range of offers, please consent to the collection and processing of your personal data by the relevant third-party providers. To do so, please click on the red “Accept” button.
Further information can be found on our Data Protection & Cookies page.