"> Cummins 12VQSK38-G-50Hz
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Cummins

12VQSK38-G-50Hz

The Cummins 12VQSK38‑G‑50Hz is a V‑12, 4‑stroke diesel auxiliary engine driving a high‑output generator set (≈1.35 MW) for shipboard electrical power at 50 Hz.

Cummins 12VQSK38-G-50Hz
1416.0 kW
Power

Engine Specifications

12
Cylinders
159 mm
Bore
159 mm
Stroke
4-stroke
Stroke Type

Components & Design

Component data being added…

Technical Data

Displacement 50.0-50.3 Liter (3067-3068 Kubikzoll)
Configuration V-16 cylinder, 4-stroke diesel
Luftzufuhr Turbogeladen mit Nachkühlung (Zwei-Kreislauf-System)
Trockengewicht 7429 kg (QSK50) / 5166 kg (KTA50)
Leistungsbereich 1044-1864 kW (QSK50); 1193-1398 kW (KTA50-M2)
Kraftstoffsystem QSK50: Modular Common Rail MCRS; KTA50: PT (Pressure-Time) Mechanisch
IMO Zertifizierung IMO Tier II / III, EPA Tier 2-3 Zulassung
Emissionsstandard IMO MARPOL Annex VI, Regulation 13 NOx-konform
power kw 1416
rpm 1500
fuel type MDO
configuration V
genset kw 1345
genset kva 1681
frequency hz 50

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Common failures & inspection points

Cooling system leakages and overtemperature

Check coolant level, inspect cooler/heat exchanger for fouling, check water pump for leakages, test thermostat functionality

Fuel injector wear: Worn parts cause return pressure drop, delayed injection

Check injectors for leaks and wear, monitor injection pressure, test misfiring/power loss

Turbocharger malfunction: Worn roller bearings, wastegate sticking, compressor wear

Check compressor impeller for foreign objects/wear, monitor bearing clearance, inspect oil contamination, test wastegate function

Cylinder head cracks/head gasket failure due to high combustion pressures (180–200 bar)

Check cooling water for oil ingress, monitor white smoke development, perform pressure test, perform piston leakage test

Piston ring wear: blue smoke development, oil consumption increased

Monitor blue smoke, perform pressure test, check oil level frequently, inspect exhaust valve functionality

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

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Equipment Model #124390 · ✓ still in production