"> MAN Energy Solutions 7L42MC-C8
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MAN Energy Solutions

7L42MC-C8

The MAN 7L42MC-C8 is a low‑speed, 7‑cylinder, two‑stroke main propulsion engine delivering up to 14 140 kW at 136 rpm, distinguished by camshaft‑controlled fuel injection and exhaust valves with constant‑pressure turbocharging.

MAN Energy Solutions 7L42MC-C8
14140.0 kW
Power

Engine Specifications

7
Cylinders
420 mm
Bore
1360 mm
Stroke
14,140 kW
MCR Power
136.0 rpm
MCR RPM
2-stroke
Stroke Type
Family: MAN B&W MC/MC-C · Tier: Tier II · Fuel: HFO, VLSFO, MDO

Inspector Detail

▸

Designation decoded

7 Zylinder, L=Long-Stroke, 42=420 mm, MC-C8. 420 mm Bohrung, 1.360 mm Hub.

Background

7L42MC-C8, 7-Zylinder Long-Stroke, 420 mm. Mechanisch. Für Handysize-Schiffe.

Calculated metrics

Stroke To Bore Ratio
3.24

Inspector checklist

Laufzeug
  • 420 mm, S/B 3.24.
  • Kolbenringe.
  • Kreuzkopf.
Steuerung
  • Nockenwelle.
  • Einspritzpumpen.
  • Auslassventil.
Kraftstoff
  • Düsen.
  • VLSFO.
Turbolader
  • Turbolader (1 Stück).
Dichtungen
  • Stopfbuchse.
  • Auslassventil.

Logbook reference values

Parameter Expected Deviation means
Abgastemperatur Herstellerangabe >15 °C → Problem

Common Failure Modes

Plunger-Verschleiß
Symptoms: Leistung
Causes: Cat-Fines
Preventive: Filtration.

Expert tips

  • 💡 L-Typ 7 Zylinder: Höhere Drehzahl, guter Massenausgleich.

Related components

Nockenwelle Einspritzpumpen Turbolader

Classification & regulatory

IMO Tier I/II.

Reference content for inspector orientation. Always verify against manufacturer's manual, latest service letters and class society requirements.

Other Cylinder Configurations 50

5L35MC-C8
5 cyl · 6,450 kW
5L42MC-C8
5 cyl · 10,100 kW
5L60MC-C8
5 cyl · 21,000 kW
5L70MC-C8
5 cyl · 31,150 kW
5L80MC-C8
5 cyl · 42,000 kW
5S26MC-C8
5 cyl · 3,700 kW
5S35MC-C8
5 cyl · 7,650 kW
5S42MC-C8
5 cyl · 12,950 kW
5S46MC-C8
5 cyl · 15,500 kW
5S50MC-C8
5 cyl · 18,650 kW
5S60MC-C8
5 cyl · 28,250 kW
5S65MC-C8
5 cyl · 35,000 kW
5S70MC-C8
5 cyl · 40,400 kW
5S80MC-C8
5 cyl · 51,000 kW
5S90MC-C8
5 cyl · 64,350 kW
6K80MC-C8
6 cyl · 43,500 kW
6K90MC-C6
6 cyl · 30,780 kW
6K90MC-C8
6 cyl · 56,700 kW
6K98MC-C8
6 cyl · 85,020 kW
6L35MC-C8
6 cyl · 7,740 kW
6L42MC-C8
6 cyl · 12,120 kW
6L60MC-C8
6 cyl · 25,200 kW
6L70MC-C8
6 cyl · 37,380 kW
6L80MC-C8
6 cyl · 50,400 kW
6S26MC-C8
6 cyl · 4,440 kW
6S35MC-C8
6 cyl · 9,180 kW
6S42MC-C8
6 cyl · 15,540 kW
6S46MC-C8
6 cyl · 18,600 kW
6S50MC-C8
6 cyl · 22,380 kW
6S50MC-C8.2
6 cyl · 9,960 kW
6S60MC-C8
6 cyl · 33,900 kW
6S65MC-C8
6 cyl · 42,000 kW
6S65MC-C8.2
6 cyl · 16,440 kW
6S70MC-C8
6 cyl · 48,480 kW
6S80MC-C8
6 cyl · 61,200 kW
6S90MC-C8
6 cyl · 77,220 kW
7K80MC-C6
7 cyl · 28,980 kW
7K80MC-C8
7 cyl · 50,750 kW
7K90MC-C8
7 cyl · 66,150 kW
7K98MC-C7.1
7 cyl · 40,040 kW
7K98MC-C8
7 cyl · 99,190 kW
7L35MC-C8
7 cyl · 9,030 kW
7L60MC-C8
7 cyl · 29,400 kW
7L70MC-C8
7 cyl · 43,610 kW
7L80MC-C8
7 cyl · 58,800 kW
7S35MC-C8
7 cyl · 10,710 kW
7S42MC-C8
7 cyl · 18,130 kW
7S46MC-C8
7 cyl · 21,700 kW
7S50MC-C8
7 cyl · 26,110 kW
7S60MC-C8
7 cyl · 39,550 kW

Components & Design

Component data being added…

Technical Data

unified from engine model True

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Manuals

  • operating
    MAN B&W MC/MC-C Engine Operating Manual (OM-MC-C)
    MAN Energy Solutions
  • maintenance
    MAN B&W MC/MC-C Maintenance Manual (MM-MC-C)
    MAN Energy Solutions
  • spare_parts
    MAN B&W MC/MC-C Illustrated Parts Catalogue (IPC-MC-C)
    MAN Energy Solutions
  • project_guide
    MAN B&W Project Guide MC/MC-C (PG-MC-C)
    MAN Energy Solutions
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Equipment Model #38227 · ✓ still in production