Caterpillar MaK
MaK M43C
Der MaK M43C ist der Standard-Hauptmotor der Caterpillar/MaK-Baureihe für mittelgroße Containerschiffe, RoRo-Schiffe und Offshore-Versorger. MaK (Maschinenbau Kiel, 1997 von Caterpillar übernommen) produziert in Kiel und Rostock. Der M43C wird als mechanische Hauptmaschine mit Getriebe + CPP oder als Generator-Antrieb eingesetzt.
4,800-10,800 kW (6-9L, 12V, 16V)
Capacity
HFO / VLSFO / MGO
Medium
Engine Specifications
6L, 7L, 8L, 9L, 12V, 16V
Cylinders
430 mm
Bore
610 mm
Stroke
26.5 bar
MEP
🔧 Komponenten & Aufbau 3
Turbocharger Unit (ABB/MHI/Napier)
ABB Turbocharging / MHI
M43C Turbocharger (ABB TPL / MHI MET)
common failures:
['Turbine blade erosion from HFO ash deposits', 'Compressor fouling from lube oil carry-over', 'Bearing wear from contaminated lube oil', 'Surging at low-load operation']
source family:
MaK M43C
💡 Single-stage turbocharger. Water washing every 100-500 hrs depending on fuel. Major overhaul at 12,000-16,000 hrs.
Lead time: 12 Wo.
Cylinder Head Body
Caterpillar/MaK
M43C Cylinder Head Assembly
common failures:
['Valve seat recession', 'Cooling bore blockage from scale', 'Cylinder head stud fatigue', 'Injector sleeve erosion']
source family:
MaK M43C
💡 4-valve design (2 intake, 2 exhaust). Overhaul at 16,000-24,000 hrs. Pressure test cooling passages at overhaul.
Lead time: 14 Wo.
Fuel Pump (Jerk-Type / Common Rail)
Caterpillar/MaK / Bosch
M43C Fuel Injection Pump (Jerk-Type)
common failures:
['Plunger/barrel wear causing reduced injection pressure', 'Delivery valve leakage', 'Spring fatigue', 'Timing drive gear wear']
source family:
MaK M43C
💡 Mechanical jerk-type pump per cylinder. Overhaul at 8,000-12,000 hrs. Check plunger clearance with micrometer.
Lead time: 8 Wo.
📊 Technische Daten
SFOC (Specific Fuel Oil Consumption)
175–178 g/kWh (HFO optimized)
Lube Oil Consumption
0.6 g/kWh standard; 0.3 g/kWh optional
Engine Type
4-stroke turbocharged intercooled non-reversible with direct injection
Cylinder Block Material
Nodular cast iron (Kugelgraphitguss)
Turbocharger Maintenance Interval
15,000 operating hours (inspection/cleaning)
Per-Cylinder Power Output
~700–760 kW/cylinder
Engine Centre Distance
3400 mm
Charge Air Cooler
Cast casing with 40% increased base area for turbocharger mounting
type
4-Stroke Medium-Speed Trunk Piston Engine
sfoc g kwh
176
tier
IMO Tier II
variant count approx
6
period start year
2000
drive type
Gearbox + CPP or Generator
construction
Trunk piston, inline or V, conventional fuel injection or CR
bore mm v
430
stroke mm v
610
rpm v
500–514
fuel v
Heavy Fuel Oil (HFO) / Distillate oil
status v
Production since 1998; Market leader in 5–9 MW class; >650 units, >6500 MW cumulative power sold
datasheet url
https://www.pon-cat.com/application/files/6415/3786/3535/C10752923.pdf
⚠️ Typische Ausfälle
- ● _hinweis
- ● items
🔍 Service & Wartung
Cat/MaK intervals: Oil change 500-1,000 hrs, Injectors 8,000-12,000 hrs, Piston 18,000-24,000 hrs, Top overhaul 24,000 hrs, Major overhaul 48,000 hrs.
🛒 Bezugsquellen & Ersatzteile
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Spare parts data being added…
Caterpillar global. Lead time: 1-4 Wochen.
Equipment-Model #38024
· ✓ still in production