QSK50 for Marine

Power 1700 - 2200 hp
1268 - 1641 kW

Certification IMO Tier II

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Overview:

1268-16414 kW | 1700-2200 hp

Designed to withstand the challenging conditions commercial marine operators often face; this same reliable, durable power is now available for recreational boating applications, including super yachts and yacht support vessels
Improved idle stability and reduced noise and vibration are a direct result of the Cummins Modular Common Rail fuel system
In-cylinder technology to meet IMO Tier 2/3, EPA Tier 3 and EU Stg. 3a; platform for future emissions in the U.S. and globally
Covered by a comprehensive one year warranty and backed by Cummins global service network
Built at Daventry Engine Plant in Daventry, U.K.

Configuration	V-16 cylinder, 4-stroke diesel
Aspiration	Turbocharged / Aftercooled
Displacement	50 L (3068 in³)
Bore & Stroke	159 X 159 mm (6.25 X 6.25 in)
Rotation	Counterclockwise facing flywheel
Fuel System	High Pressure Common Rail

Product Dimensions and Weight

Overall Length	mm (in)	2780.2	(109.46)
Length of Block	mm (in)	2044.7	(80.50)
Overall Width	mm (in)	1573.4	(61.95)
Overall Height	mm (in)	2231.6	(87.86)
Overall Weight	kg (lb)	6270	(13,823)

Dimensions and weight may vary based on selected engine configuration.

Commercial and Recreational Marine Propulsion Engines (Variable Speed Ratings)

Model	kW	BHP	Speed (RPM)	Rating	Emissions
QSK50-M1	1268	1700	1600	Continuous	IMO 2 \| EPA 3 \| EU 3a
QSK50-M1	1268	1700	1600	Continuous	IMO 2 \| EU 3a
QSK50-M1	1268	1700	1800	Continuous	IMO 2 \| EU 3a
QSK50-M1	1342	1800	1600	Heavy Duty	IMO 2 \| EU 3a
QSK50-M1	1342	1800	1800	Heavy Duty	IMO 2 \| EPA 3 \| EU 3a
QSK50-M1	1342	1800	1800	Heavy Duty	IMO 2 \| EU 3a
QSK50-M1	1342	1800	1900	Heavy Duty	IMO 2 \| EPA 3 \| EU 3a
QSK50-M1	1342	1800	1900	Heavy Duty	IMO 2 \| EU 3a
QSK50-M1	1529	2050	1800	Medium Continuous	IMO 2 \| EU 3a
QSK50-M1	1641	2200	1900	Medium Continuous	IMO 2 \| EU 3a

Marine Auxiliary Engines (Fixed Speed Ratings)

Model	kW	BHP	Speed (RPM)	Rating	Emissions
QSK50-DM1	1290	1730	1500 (50 Hz)	Prime Power	IMO 2 \| EU 3a
QSK50-DM1	1290	1730	1501 (50 Hz)	Prime Power	IMO 3
QSK50-DM1	1342	1800	1800 (60 Hz)	Prime Power	IMO 2 \| EPA 3 \| EU 3a
QSK50-DM1	1342	1800	1800(60Hz)	Prime Power	IMO2\|EU 3a
QSK50-DM1	1342	1800	1800 (50 Hz)	Prime Power	IMO 3
QSK50-DM1	1628	1800	1800 (60 Hz)	Diesel Electric	IMO 2 \| EU 3a
QSK50-DM1	1628	2183	1800 (60 Hz)	Prime Power	IMO 2 \| EU 3a
QSK50-DM1	1628	2183	1801(60 Hz)	Prime Power	IMO 3

Engine Design – Reliable base engine uses common components from the proven K19, K38 and K50 engines. A new cast-iron, ductile single-piece piston with nitride-coated rings and hardened cylinder liner provides excellent durability and long life

Fuel System – Modular Common Rail Fuel System features a simplified design which provides constant high injection pressure regardless of engine speed or load condition. Benefits include low noise and vibration for quiet operation, idle stability and low-end torque

Cooling System – Two-pump, two-loop, low temperature aftercooling maximizes efficiency and improves performance. Engine-mounted titanium plate heat exchanger provides superior durability with minimal maintenance requirements

Exhaust System – Dry-shielded exhaust manifold and turbocharger. Vertical or horizontal exhaust connections available for installation flexibility

Air System – Turbocharger optimized for vessel operating conditions and safety. Mounted or remote marine grade air cleaner with replaceable canister reduces maintenance cost

Lubrication System – Standard capacity 151 L (40 gal) and high capacity 204 L (54 gal) marine grade oil pan. Handed Cummins spin-on oil filters available for easy accessibility and servicing

Electronics – 24v Quantum System electronics feature an ECM to monitor operating parameters, while providing diagnostics, prognostics and complete engine protection. Simplified electrical customer interface box for all vessel connections to reduce installation complexity

Certifications – Complies with IMO Tier II/III, EPA Tier 3 and EU Stage IIIa emissions regulations. Designed to meet the International Association of Classification Societies (IACS) and SOLAS requirements. Consult your local Cummins professional for a complete listing of available class approvals

Optional Equipment