^BAMN — MAN Nutzfahrzeuge

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Description

MAN Nutzfahrzeuge truck-derived marine auxiliary genset engines (D2840 / D2866 series).

Did you know

The MAN Nutzfahrzeuge (Aux Engine) refers to auxiliary engines produced by MAN, a company with a long history in engine development dating back to Rudolf Diesel's work between 1893 and 1897. The L27/38, a prominent auxiliary engine, was launched in 1999 as a genset engine.
Within MAN Energy Solutions's four-stroke auxiliary engine range, models like the L27/38 and D28 series sit alongside more powerful options such as the D3872, which rounds off the power portfolio for on-board engines from 280 kW to 960 kW. The L21/31 is considered a smaller sibling to the L27/38.
MAN auxiliary engines are chosen for their reliability, efficiency, and compact design, allowing for space-saving installation. They are designed for consistent power output and can meet various international emission standards.

Model	Cylinders	Bore × Stroke (mm)	Power Output (kW/cyl)	Rated Speed (rpm)
MAN L27/38	6, 7, 8, 9	270 × 380	340 (genset version)	800
MAN L21/31	6, 7, 8, 9	210 × 310	215 (genset version)	900-1000
MAN D2866	6	128 × 155	31.6-46.5	1800
MAN D3872	12	138 × 165	70-80	1500/1800

Sources: beneteau.com; historicvehicles.com.au; rivieramm.com; mantruckandbus.com; powertraininternationalweb.com; man-es.com; man.eu; nauticexpo.com; sinooutput.com

Competitive Models

Similar models from other manufacturers — apple to apple.

^BAUB QSK60-DM

Cummins QSK60-DM — a 60-liter V16 marine generator set for auxiliary power generation.

^BAYD 6EY18AL

Yanmar 6EY18AL - marine auxiliary diesel engine (generator prime mover).

^BAWR W16V32

^BATA Series 4000

^BASB 6H21/32

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

^B  A  M  N
 │  │  │  └── Model: MAN Nutzfahrzeuge
 │  │  └───── Make: MAN Energy Solutions
 │  └──────── Equipment: Aux Engine
 └─────────── System: Aux Engine Power Generation