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MTU
20V 8000 M71
The MTU 20V8000 M71 is a 20‑cylinder, four‑stroke medium‑speed marine diesel engine delivering up to 8 200 kW at 1 150 rpm, distinguished by its very high power‑to‑weight ratio and common‑rail fuel injection system.
9100.0 kW
Power
Engine Specifications
20
Cylinders
265 mm
Bore
315 mm
Stroke
9,100 kW
MCR Power
1150.0 rpm
MCR RPM
4-stroke
Stroke Type
Family: MTU (Rolls-Royce Power Systems) Series 2000
· Tier: IMO Tier II
· Fuel: MDO, MGO
Other Cylinder Configurations 29
8V 2000 M70
8 cyl
· 720 kW
8V 2000 M72
8 cyl
· 720 kW
8V 2000 M86
8 cyl
· 720 kW
8V 2000 M93
8 cyl
· 720 kW
8V 2000 M96
8 cyl
· 720 kW
10V 2000 M70
10 cyl
· 900 kW
10V 2000 M72
10 cyl
· 900 kW
10V 2000 M86
10 cyl
· 900 kW
10V 2000 M93
10 cyl
· 900 kW
10V 2000 M96
10 cyl
· 900 kW
12V 2000 M70
12 cyl
· 1,080 kW
12V 2000 M72
12 cyl
· 1,080 kW
12V 2000 M86
12 cyl
· 1,080 kW
12V 2000 M93
12 cyl
· 1,080 kW
12V 2000 M96
12 cyl
· 1,080 kW
12V 4000 M53
12 cyl
· 2,160 kW
12V 4000 M63
12 cyl
· 2,160 kW
12V 4000 M73
12 cyl
· 2,160 kW
16V 2000 M70
16 cyl
· 1,440 kW
16V 2000 M72
16 cyl
· 1,440 kW
16V 2000 M86
16 cyl
· 1,440 kW
16V 2000 M93
16 cyl
· 1,440 kW
16V 2000 M96
16 cyl
· 1,440 kW
16V 4000 M53
16 cyl
· 2,880 kW
16V 4000 M63
16 cyl
· 2,880 kW
16V 4000 M73
16 cyl
· 2,880 kW
20V 4000 M53
20 cyl
· 3,600 kW
20V 4000 M63
20 cyl
· 3,600 kW
20V 4000 M73
20 cyl
· 3,600 kW
Components & Design
Component data being added…
Technical Data
Hubraum (20V)
347,4 Liter (21.200 cu in)
Hubraum (16V)
278 Liter (16.964 cu in)
Trockengewicht (20V M71/71L)
45.300 kg (98.870 lbs)
Nassgewicht (20V M71/71L)
47.665 kg (105.080 lbs)
Trockengewicht (16V)
42.000 kg (92.594 lbs)
Spez. Verbrauch M71
189-190 g/kWh @ Nennleistung
Spez. Verbrauch M91L
199 g/kWh (±5% per ISO 3046) @ Nennleistung
Abmessungen (20V)
6645 x 2040 x 3375 mm
Abmessungen (16V)
5698 x 2040 x 3375 mm
Leistung 20V M71
8.200 kW @ 1.150 rpm (Dauerlast)
Leistung 20V M90
9.000 kW @ 1.150 rpm
Leistung 20V M91L
10.000 kW @ 1.150 rpm (ICFN-rated)
Leistung 16V M71L
7.280 kW @ 1.150 rpm (ICFN-rated)
Leistung 16V M91L
8.000 kW @ 1.150 rpm (ICFN-rated)
Time Between Overhauls (TBO)
bis 96.000 Betriebsstunden
Schmieröl-Verbrauch
0,25% des Kraftstoffverbrauchs
Turbolader-Typ
Sequential (zweistufig, schaltbar), elektronisch gesteuert
Einspritzanlage
Common-Rail (elektronisch gesteuert), mit Zylinderschnellabschaltung
Zertifizierungen
ABS Naval Vessel Rules (NVR) - 1.500h Test @ 110% Nennleistung (2013); IMO TIER III (mit SCR)
unified from engine model
True
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Common failures & inspection points
Turbolader-Verschleiß durch Verschmutzung und Schmiermittelprobleme: Turboladerschaufeln-Erosion, Turbinen-Gehäuse-Risse, festsitzende Variable Geometry Mechani
Kühlmittel-Kompatibilität kritisch: Nur wasserlösliche Korrosionsinhibitoren erlaubt; Korrosions-Antifrostmittel VERBOTEN für Series 8000. Fehlerhafte Additive
Kraftstoff-Hochdruck-Anlage Ausfallrisiko: Mangel an Ölwechseln zerstört Hochdruck-Pumpenlager; Kraftstoff-Druckverlust durch Verschleiß des Injektorsystems füh
Ölkühler- und Gasketing-Undichtigkeiten: Verschlissene Dichtungen am Ölkühler und Leckagen an Pumpen gefährden das Schmieröl (Kontamination). Korrosion durch Sa
Ansaugluft-Filtersystem-Verstopfung: Salzspray und Staubpartikel reduzieren Turbolader-Effizienz; MTU spezifiziert max. 25 Zoll Wassersäule Ansaugdruck. Verschm
Type-general inspection and maintenance points for this equipment category — not model-specific.
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Equipment Model #38567
· ✓ still in production