^AAHA — 6S50MC-C7

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Description

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Did you know

The MAN B&W MC series, which the 6S50MC-C7 belongs to, was introduced in 1983, following the L35MC model in 1982. Hitachi Zosen completed its first ME-C engine, a 6S50ME-C, in 2003.
The 6S50MC-C7 is part of the S-MC-C series, characterized by its compact structure and super-long-stroke design. It sits within the smaller bore engine range of MAN B&W's two-stroke offerings, which also include larger bore engines like the K90ME/ME-C.
This model is chosen for its robust construction, operational economy, and extended service life, making it suitable for main propulsion in various commercial vessels. Its super-long-stroke design contributes to excellent fuel efficiency and lower RPM.

Model	Cylinders	Bore (mm)	Stroke (mm)	Power/Cylinder (kW)	Nominal RPM
6S50MC-C7	6	500	2000	1460	127
5S50MC-C7	5	500	2000	1460	127
7S50MC-C7-TI	7	500	2000	1580	127

Sources: wordpress.com; hitachizosen.co.jp; jsea.or.jp; nautilusshipping.com; zxanhyd.com; scribd.com; rivieramm.com

Competitive Models

Similar models from other manufacturers — apple to apple.

^AAAA G50ME-C

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^AAAE G95ME-C

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^AAAD G80ME-C

G80ME-C is a MAN B&W 2S model, coded ^AAAD. Typical service: primary propulsion at sea; shaft drive to propeller. Instal…

^AAEA 6EY26W

Yanmar 6EY26W — a 6-cylinder medium-speed four-stroke main engine with 260mm bore. Compact design for coastal tankers, f…

^AAAF S50ME-C

S50ME-C is a MAN B&W 2S model, coded ^AAAF. Typical service: primary propulsion at sea; shaft drive to propeller. Instal…

Spares

Positions 1–12 are the same part on every engine and are safe to quote by code. 13 and 14 vary with cylinder count.

1Cylinder Liner — page under construction
2Piston — page under construction
3Fuel Injector Nozzle — page under construction
4Cylinder Head / Cover — page under construction
5Connecting Rod — page under construction
6Main Bearing — page under construction
7Bottom-End (Crankpin / Con-Rod) Bearing — page under construction
8Fuel Injection Pump — page under construction
9Fuel Injector (Complete) — page under construction
10Exhaust Valve — page under construction
11Inlet Valve — page under construction
12Piston Ring Set — page under construction
13Crankshaft — page under construction
14Camshaft — page under construction

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Code map

^A  A  H  A
 │  │  │  └── Model: 6S50MC-C7
 │  │  └───── Make: Hitachi Zosen MAN B&W
 │  └──────── Equipment: Main Engine
 └─────────── System: ME, Propulsion & Steering