M 43 C propulsion

The in 1998 introduced M43 engine, having a bore of 430 mm and a stoke of 610 mm, is the most powerful MaK engine available. This type is obtainable as an inline version with 6, 8, 7, and 9 cylinders. The output ranges from 5,400 kW (6M43C) to 9,450 kW (9M43C) at 500 and 514 revolutions per minute.

For more information about the M43 download following documents or visit www.marine.cat.com.

Quick Facts

  • kW
    5.400 - 9.450
  • rpm
    500 - 514
  • bore
  • stroke
  • g/kW
    175 - 178

Dimensions and weight

Specific lubricating oil consumption
0.6 g/kWh, 0.3 g/kWh
LCV = 42700 kJ/kg, without engine-driven
pumps tolerance 5%

Engine centre distance: 3400mm

Removal of cylinder liner:
in transverse direction: 4165mm
in longitudinal direction: 4610mm

Nozzle position: ask for availability

This engine is only available with dry oil sump

Engine with turbocharger at free end available, ask for dimensions

Design Features

The turbocharger group consists of a high-performance turbocharger, a cartridge-type air cooler casing and charge air cooler

The cast charge air cooler casing forms a secure foundation for the turbocharger.

The governor drive

The straight-tooth gearwheel drive is safe and requires no further adjustment.

The turning device

An irreversible gear and an engagement unit en sure simple operation and increased operational safety.

The media duct system

External pipe work has been reduced to a minimum.

Engine block

Engine block

Firm base for main and camshaft bearings due to inherent rigidity.

Control stand with monitoring components

All the engine performance data can be simply inspected on a new control stand arrangement with reliable, analog displays.

Flex Cam Technology (FCT)

The FCT system is a cornerstone of our emission reduction technology. Characteristic fuel injection and inlet valve timing are load controlled.

Lower valve drive and injection pump drive

Of modular construction, the component is of simple and robust design and boasts increased operational safety because no ad justment work is necessary.