Caterpillar MaK
6L M552C
MaK M551 / M552 (Legacy 450mm) — Viertakt-Marinediesel, Bohrung 450 x Hub 550 (M551) / 520 (M552) mm, M551: 300-450 rpm (typical 425 rpm rated); M552: 500 rpm rated rpm, 3,490-7,469 kW depending on configuration (6M551 to 12M552). Brennstoff: Heavy Fuel Oil (HFO), Marine Diesel, up to 7,000 sec Redwood I viscosity. Status: Legacy / Obsolete (Production: ~1980s, Caterpillar acquired division 1997, engine now discontinued but still operational in field). Verifiziert, Datenblatt verlinkt.
5520.0 kW
Power
Engine Specifications
6
Cylinders
552 mm
Bore
720 mm
Stroke
🔧 Komponenten & Aufbau
Component data being added…
📊 Technische Daten
configuration
L
rpm
400
fuel type
HFO
technology
Mechanical Heavy-Duty Trunk Piston
displacement l per cyl
172.3
needs verification
False
catalog added at
2026-05-22T13:38:18
verified specs
{'Bore': '450 mm', 'Stroke M551': '550 mm', 'Stroke M552': '520 mm', 'Output per cylinder': '780 bhp (M551 @ 425 rpm) / 835 bhp (M552 @ 500 rpm)', 'SFOC (8-cyl economy)': '130 g/bhp-h', 'Lubrication oil inlet': '50-55 °C', 'Oil pressure': '4.0-5.0 bar', 'Valve guide clearance limit': '0.40 mm (inlet & exhaust)', 'Fuel capability': 'up to 7,000 sec Redwood I @ 100 °F'}
bore mm v
450
stroke mm v
550 (M551) / 520 (M552)
rpm v
M551: 300-450 rpm (typical 425 rpm rated); M552: 500 rpm rated
fuel v
Heavy Fuel Oil (HFO), Marine Diesel, up to 7,000 sec Redwood I viscosity
status v
Legacy / Obsolete (Production: ~1980s, Caterpillar acquired division 1997, engine now discontinued but still operational in field)
datasheet url
https://pdfcoffee.com/mak-551-552-c-marine-diesel-engine-operating-manual-2-pdf-free.html
sources
['https://magazines.marinelink.com/Magazines/MaritimeReporter/198412/content/reports-series-engines-203282', 'https://pdfcoffee.com/mak-551-552-c-marine-diesel-engine-operating-manual-2-pdf-free.html', 'https://www.scribd.com/document/380475535/MAK-551-552-C-Marine-Diesel-Engine-Operating-Manual', 'https://malwimarine.com/engine-parts-4-stroke/mak/m552-m551/', 'https://www.pon-cat.com/application/files/3015/3786/3477/C10752924.pdf', 'https://www.industrialmarinepower.com/for-sale-mak-452--mak-453--mak-551--mak-552-spare-parts-8281/']
⚠️ Typische Ausfälle
- ● _hinweis
- ● items
📦 Verschleißteile
Spare parts data being added…
Equipment-Model #66557
· discontinued