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Caterpillar MaK
6M M43C
MAK/Caterpillar Marine M-series 4-stroke medium-speed engines. Used as both propulsion and auxiliary in various vessel types.
6060.0 kW
Power
Engine Specifications
6
Cylinders
430 mm
Bore
610 mm
Stroke
6,060 kW
MCR Power
500.0 rpm
MCR RPM
4-stroke
Stroke Type
Family: Caterpillar/MAK M20C/M25C/M32C/M43C
· Tier: IMO Tier II
· Fuel: HFO, MDO, MGO
Other Cylinder Configurations 35
4L20
4 cyl
· 800 kW
6L M20C
6 cyl
· 1,110 kW
6L M25C
6 cyl
· 2,040 kW
6L M32C
6 cyl
· 3,360 kW
6L20
6 cyl
· 1,200 kW
6L32
6 cyl
· 3,480 kW
6M M46DF
6 cyl
· 6,600 kW
Cat C280-6
6 cyl
· 2,100 kW
8L M20C
8 cyl
· 1,480 kW
8L M25C
8 cyl
· 2,720 kW
8L M32C
8 cyl
· 4,480 kW
8L20
8 cyl
· 1,600 kW
8L32
8 cyl
· 4,640 kW
8M M43C
8 cyl
· 8,080 kW
8M M46DF
8 cyl
· 8,800 kW
Cat 3508B
8 cyl
· 560 kW
Cat C280-8
8 cyl
· 2,800 kW
9L M20C
9 cyl
· 1,665 kW
9L M25C
9 cyl
· 3,060 kW
9L M32C
9 cyl
· 5,040 kW
9L20
9 cyl
· 1,800 kW
9L32
9 cyl
· 5,220 kW
9M M43C
9 cyl
· 9,090 kW
9M M46DF
9 cyl
· 9,900 kW
12V M43C
12 cyl
· 12,120 kW
12V M46DF
12 cyl
· 13,200 kW
12V32
12 cyl
· 6,960 kW
Cat 3512B
12 cyl
· 840 kW
Cat 3512C
12 cyl
· 895 kW
Cat C280-12
12 cyl
· 4,200 kW
16V32
16 cyl
· 9,280 kW
Cat 3516B
16 cyl
· 1,120 kW
Cat 3516C
16 cyl
· 1,200 kW
Cat 3516E
16 cyl
· 1,305 kW
Cat C280-16
16 cyl
· 5,600 kW
Components & Design
Component data being added…
Technical Data
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
unified from engine model
True
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Common failures & inspection points
Heavy fuel oil corrosion of cylinder liners and piston rings due to high sulfur content; nodular cast iron offers improved wear resistance vs. gray iron but req
Turbocharger bearing wear and seizure from contaminated or degraded lube oil; tight clearances vulnerable to sluggish operation or complete seizure if oil break
Fuel injector nozzle carbon deposits and stiction (sticking) from poor fuel quality (high viscosity, low volatility); coke accumulation at nozzle holes can caus
Intake and exhaust rocker arm bearing wear requiring clearance checks every 30,000 hours; bearing surfaces (ball pin, adjusting screw) subject to friction and w
Main running gear (crankshaft, bearings, piston skirts, liners) susceptible to seizure and discoloration from inadequate lube oil separation/filtration; long-st
Type-general inspection and maintenance points for this equipment category — not model-specific.
Suppliers & Spare Parts
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Maritime Network →Manuals
-
operating
MaK M43C Operating Manual
-
maintenance
MaK M43C Maintenance Manual
-
spare_parts
MaK M43C Spare Parts Catalogue
Equipment Model #38060
· ✓ still in production