QSK50 for Marine

Overview

QSK50 for Marine

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 II, 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.

Specifications

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.

Engine Finder Specifications

Markets
Certification Level Tier 3 / Stage IIIA
IMO Tier II
Power 1700 - 2200 hp / 1268 - 1641 kW

Ratings

Commercial and Recreational Marine Propulsion Engines (Variable Speed Ratings)

Engine Model

kW

MHP

BHP

Engine Speed (RPM)

Rating Definition

Emissions

QSK50-M1

1268

1724

1700

1600

Continuous

IMO 2 | EPA 3 | EU 3a

QSK50-M1

1268

1724

1700

1800

Continuous

IMO 2 | EU 3a

QSK50-M1

1342

1825

1800

1600

Heavy Duty

IMO 2 | EU 3a

QSK50-M1

1342

1825

1800

1800

Heavy Duty

IMO 2 | EPA 3 | EU 3a

QSK50-M1

1342

1825

1800

1900

Heavy Duty

IMO 2 | EPA 3 | EU 3a

QSK50-M1

1529

2079

2050

1800

Medium Continuous

IMO 2 | EU 3a

QSK50-M1

1628

2214

2183

1800

Diesel Electric

IMO 2 | EU 3a

QSK50-M1

1641

2231

2200

1900

Medium Continuous

IMO 2 | EU 3a

 

Marine Auxiliary Engines (Fixed Speed Ratings)

Engine Model

kW

MHP

BHP

Engine Speed (RPM)

Rating Definition

Emissions

QSK50-DM1

1290

1754

1730

1500 (50 Hz)

Prime Power

IMO 2 | EU 3a

QSK50-DM1

1342

1825

1800

1800 (60 Hz)

Prime Power

IMO 2 | EPA 3 | EU 3a

QSK50-DM1

1628

2214

2183

1800 (60 Hz)

Prime Power

IMO 2 | EU 3a



For more information on marine ratings, click here. For more on marine emissions information, click here.

Features

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, 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

Brochures Available

Title Bulletin Number Request View  
C Command Electronic Information System Brochure 4082006 Request View  Download
C Command Electronic Information System Brochure – A4 Format 5410605 View  Download
Cummins Centinel and Eliminator Marine Applications Brochure 2878802 Request View  Download
Marine Commercial Transport Brochure 4082096 Request View  Download
Marine Defense Brochure 4087453 Request View  Download
Marine Defense Brochure – A4 Format 4087463 View  Download
Marine Products Guide 3381946 Request View  Download
QSK50 Commercial and Recreational Marine Spec Sheet 4087439 View  Download
QSK50 Commercial and Recreational Spec Sheet - A4 Format 4986142 View  Download

Technical Documents Available

Title Bulletin Number View  
C Command Elite Plus Wiring Diagram 4989144 View  Download
C Command Elite Wiring Diagram 4989146 View  Download
C Command Wiring Diagram 4947586 View  Download
QSK50 Marine Engine General Datasheet D28-MX-1 View  Download
QSK50-DM1 Marine Performance Curve 1290 kW (1730 hp) @ 1500 RPM DM-60165 View  Download
QSK50-DM1 Marine Performance Curve 1342 kW (1800 hp) @ 1800 RPM (EPA Tier 3) DM-60096 View  Download
QSK50-DM1 Marine Performance Curve 1342 kW (1800 hp) @ 1800 RPM (EU Stg. 3a) DM-60166 View  Download
QSK50-DM1 Marine Performance Curve 1628 kW (2183 hp) @ 1800 RPM DM-60306 View  Download
QSK50-M1 Marine Performance Curve 1268 kW (1700 hp) @ 1600 RPM (EPA Tier 3) M-60072 View  Download
QSK50-M1 Marine Performance Curve 1268 kW (1700 hp) @ 1600 RPM (EU Stg. 3a) M-60066 View  Download
QSK50-M1 Marine Performance Curve 1268 kW (1700 hp) @ 1800 RPM (EU Stg. 3a) M-60245 View  Download
QSK50-M1 Marine Performance Curve 1342 kW (1800 hp) @ 1600 RPM (EU Stg. 3a) M-60068 View  Download
QSK50-M1 Marine Performance Curve 1342 kW (1800 hp) @ 1800 RPM (EPA Tier 3) M-6933 View  Download
QSK50-M1 Marine Performance Curve 1342 kW (1800 hp) @ 1800 RPM (EU Stg. 3a) M-60246 View  Download
QSK50-M1 Marine Performance Curve 1342 kW (1800 hp) @ 1900 RPM (EPA Tier 3) M-60073 View  Download
QSK50-M1 Marine Performance Curve 1342 kW (1800 hp) @ 1900 RPM (EU Stg. 3a) M-60064 View  Download
QSK50-M1 Marine Performance Curve 1529 kW (2050 hp) @ 1800 RPM M-60332 View  Download
QSK50-M1 Marine Performance Curve 1641 kW (2200 hp) @ 1900 RPM M-60305 View  Download
QSK50-M1/DM1 Marine Installation Drawing 4954135 View  Download