QSC8.3 for Marine

Power 490 - 600 hp
365 - 447 kW
Torque 1327 - 1327 lb-ft
1799 - 1799 N•m
Certification RCD 1

Applications

Marine Recreational Marine Marine Propulsion Engines Commercial Marine

Overview:

368-441 kW | 493-592 hp

  • Unmatched performance from industry-leading power density on this four-valve-per-cylinder engine
  • Increased durability  from innovative engine design characteristics
  • Improved  fuel economy  and sociability from the high-pressure common-rail fuel system
  • Maximize vessel performance and access comprehensive vessel diagnostic information via SmartCraft® electronics
  • Peace of mind delivered by the Cummins Captain's
    Briefing and global service network
  • Built at Rocky Mount Engine Plant in Rocky Mount, NC, U.S.

Configuration

In-line, 6-cylinder, 4-stroke diesel

Aspiration

Turbocharged / Aftercooled

Displacement

8.3 L (505 in3)

Bore & Stroke

114 X 135 mm (4.49 X 5.31 in)

Rotation

Counterclockwise facing flywheel

Fuel System

High Pressure Common Rail

 


Product Dimensions and Weight

 

 

 

Overall Length

mm (in)

1422.0

(55.99)

Length of Block

mm (in)

856.0

(33.70)

Overall Width

mm (in)

977.5

(38.48)

Overall Height

mm (in)

981.6

(38.65)

Weight

kg (lb)

896

(1975)


Dimensions may vary based on selected engine configuration.

 

 

Recreational Marine Propulsion Engines (Variable Speed Ratings)

Model

kW

MHP

BHP

Speed (RPM)

Rating

Emissions

Performance Curve

QSC8.3

368

500

493

2600

High Output

IMO 2 | EPA 3 | RCD 2

FR94976

QSC8.3

404

550

543

3000

High Output

IMO 2 | EPA 3 | RCD 2

FR94341

QSC8.3

441

600

592

3000

High Output

IMO 2 | EPA 3 | RCD 2

FR94339

 

Commercial and Government Marine Propulsion Engines (Variable Speed Ratings)

Model

kW

MHP

BHP

Speed (RPM)

Rating

Emissions

Performance Curve

QSC8.3-SW

368

500

493

2600

Intermittent

IMO 2 | EU 3a

FR92044

QSC8.3-SW

368

500

493

2600

Intermittent

IMO 2 | EPA 3 | EU 3a

FR94342

QSC8.3-KC

368

500

493

2600

Intermittent

IMO 2 | EPA 3 | EU 3a

FR94976

QSC8.3-SW

441

600

592

2800

Government Services

IMO 2 | EPA 3 | EU 3a

FR94340

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

Engine Design – Unmatched performance from industry-leading power density on this four-valve-per-cylinder engine. Maximize vessel performance and access comprehensive vessel diagnostic information via SmartCraft® electronics. Peace of mind delivered by the Cummins Captain’s Briefing and global service network 

Fuel System – Improved fuel economy and sociability from Cummins high pressure common rail fuel system; handed spin-on engine mounted fuel filter

Lubrication System – Handed spin-on engine mounted lube filter, cast aluminum oil pan

Cooling System – Sea water heat exchanger cooling system

Air Intake System – New Walker air filter significantly reduces noise

Exhaust System – Cast water cooled exhaust manifold for lower surface temperatures, safety and improved performance

Electronics – 12v and 24v Quantum System electronics feature a proven ECM to monitor operating parameters such as fuel consumption, duty cycle, engine load and speed, while providing diagnostics, prognostics and complete engine protection. Simplified electrical customer interface box for all vessel connections to reduce installation complexity

Certifications – Complies with U.S. EPA Tier 3 emissions regulations without the use of aftertreatment. 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

  • Engine Controls – Digital Throttle and Shift; Electronic Throttle and Shift (ETS) and optional potentiometer for mechanical controls
  • Instrumentation – SmartCraft® digital displays and/or analog gauges provide data on engine speed, oil pressure, engine load and more
  • Vessel System Integration – SmartCraft® monitors fluid level, vessel range, depth, vessel speed, rudder position, temperatures and more


To access our complete brochure library, click here.


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