"> MaK (Caterpillar) 7LM25E-GS-50Hz
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MaK (Caterpillar)

7LM25E-GS-50Hz

The 7LM25E‑GS is a high‑power (≈2.1 MW) auxiliary diesel engine generator set from MaK/Caterpillar, featuring an inline‑seven 4‑stroke design that can run on HFO or MDO and meets IMO Tier III NOx limits.

MaK (Caterpillar) 7LM25E-GS-50Hz
2205.0 kW
Power

Engine Specifications

7
Cylinders
255 mm
Bore
400 mm
Stroke
4-stroke
Stroke Type

Components & Design

Component data being added…

Technical Data

Hubvolumen (6M25) 122 Liter / 122000 cc
Spezifischer Brennstoffverbrauch (SFOC) 183-184 g/kW
Zylinderzahl 6, 8 or 9 inline cylinders
Kurbelwellendrehzahl 720-750 U/min
Zylinderleistung 300-333 kW per cylinder
Bauart 4-Takt Diesel-Langhuber mit Turbolader (SCR-Ausfuehrung verfuegbar)
Komponentenreduktion ca. 40% weniger Komponenten als Vorgaengerserie
power kw 2205
rpm 750
fuel type HFO/MDO
configuration L
genset kw 2095
genset kva 2619
frequency hz 50

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Common failures & inspection points

Cylinder liner wear and overheating

Inspect cylinder liner for wear and cracks; cooling system function check

Piston ring wear and carbonization (carbon deposits)

Rauchentwicklung beobachten; Kolbenkraft-Messung; Kompressionspruefung

Fuel injector fouling and fuel carbon

Einspritzdruck / Sprayform pruefung; Brennstoff-Filterbestand; Brennstoffpolitur ggf. notwendig

Turbocharger damage from high exhaust backpressure

Abgasdruck-Messung; Verdichter/Turbinen-Sichtpruefung; OEM-spezifische Oelwechsel-Intervalle beachten

Valve timing problems and inlet/outlet valve deposits

Ventilspiel + Ventilsitz-Verschlei pruefung; Einlass/Auslassventil-Reinigung; Dichtsitzpruefung

Type-general inspection and maintenance points for this equipment category — not model-specific.

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Equipment Model #125536 · ✓ still in production