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9LM43C-GS-60Hz

Auxiliary Engine (Generator Set) · Auxiliary Engines

Class-certified type (DNV register) · technical data sheet not yet verified
8,370 kWPower
9Cylinders
430 mmBore
610 mmStroke

Regular maintenance is crucial for ensuring the longevity and reliability of marine engines, particularly in addressing common issues such as heavy fuel oil corrosion and turbocharger wear. The MaK 9LM43C-GS-60Hz, a member of the M43C-GS family, is designed to deliver robust performance with a power output of 8370 kW at 900 RPM. This engine operates on Heavy Fuel Oil (HFO) or Distillate oil and features a 4-stroke turbocharged intercooled configuration with direct injection. Each cylinder produces approximately 700–760 kW, contributing to the overall genset power of 7952 kW and a kVA rating of 9940 at 60 Hz. The engine's nodular cast iron cylinder block offers improved wear resistance compared to gray iron, which is essential for mitigating corrosion in high-sulfur environments. Maintenance schedules include inspecting the turbocharger every 15,000 operating hours and checking intake and exhaust rocker arm bearings every 30,000 hours. Additionally, regular inspections of fuel injectors and main running gear are necessary to prevent issues like carbon deposits and seizure. With over 650 units sold since 1998, the MaK 9LM43C-GS-60Hz has established itself as a market leader in the 5–9 MW class.

Specifications

Technical data.from datasheet

Every value below comes from the manufacturer datasheet or class-society record on file for this model.

SFOC (Specific Fuel Oil Consumption)175–178 g/kWh (HFO optimized)
Lube Oil Consumption0.6 g/kWh standard; 0.3 g/kWh optional
Engine Type4-stroke turbocharged intercooled non-reversible with direct injection
Cylinder Block MaterialNodular cast iron (Kugelgraphitguss)
Turbocharger Maintenance Interval15,000 operating hours (inspection/cleaning)
Per-Cylinder Power Output~700–760 kW/cylinder
Engine Centre Distance3400 mm
Charge Air CoolerCast casing with 40% increased base area for turbocharger mounting
Power (kW)8370
Speed (rpm)900
Fuel TypeHFO/MDO
ConfigurationL
Genset Output (kW)7952
Genset Output (kVA)9940
Frequency (Hz)60
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Download datasheet (PDF) (7636 KB)
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