6CT/6CTA8.3 for Marine

Overview

6CT/6CTA8.3 for Marine

122-201 kW | 164-270 hp

  • Proven legacy in tough commercial marine environments, hard earned over the last 25 years
  • Ideal solution for emergency or ship service power, power units, fire pumps and hydraulic units
  • IMO Tier I certified and many ratings are also IMO Tier II certified
  • Covered by a comprehensive one year warranty and backed by Cummins global service network
  • Built at Darlington Engine Plant in Darlington, U.K.

Specifications

Configuration In-line, 6 cylinder, 4-stroke diesel
Aspiration Turbocharged (6CT) or Turbocharged / Aftercooled (6CTA)
Displacement 8.3 L (504.5 in3)
Bore & Stroke 114 x 135 mm (4.49 x 5.32 in)
Rotation Counterclockwise facing flywheel
Fuel System Inline Injection Pump

Product Dimensions and Weight 

Overall Length

mm (in)

1182

(47)

 

Length of Block

mm (in)

 

 

 

Overall Width

mm (in)

710

(28)

 

Overall Height

mm (in)

1137

(45)

 

Overall Weight

kg (lb)

684

(1505)

6CT

   

702

(1545)

6CTA

Dimensions may vary based on selected engine configuration.




Engine Finder Specifications

Markets
Power 164 - 270 hp / 122 - 201 kW

Ratings

Marine Auxiliary Engines (Fixed Speed Ratings)

Engine Model

kW

MHP

BHP

Engine Speed (RPM)

Rating Definition

Emissions

6CT8.3-DM

122

166

164

1500 (50 Hz)

Prime Power

IMO 1

6CT8.3-DM

140

191

188

1800 (60 Hz)

Prime Power

IMO 1

6CTA8.3-DM

163

222

219

1500 (50 Hz)

Prime Power

IMO 1

6CTA8.3-DM

164

223

220

1500 (50 Hz)

Prime Power

IMO 1

6CTA8.3-DM

180

245

242

1800 (60 Hz)

Prime Power

IMO 1

6CTA8.3-DM

188

256

252

1800 (60 Hz)

Prime Power

IMO 1

6CTA8.3-DM

201

274

270

1800 (60 Hz)

Prime Power

IMO 2

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

Features

Engine Design: Robust in-line six cylinder designed for high hour marine applications. Single piece crossflow cylinder head for maximum durability and optimized combustion. Replaceable wet cylinders for longer life and lower rebuild cost

Fuel System: Bosch in-line fuel pump operates at high injection pressures for cleaner combustion and lower emissions

Cooling System: Single loop keel cooling or engine mounted heat exchanger available for simplified installation. Optional fan drive for radiator applications

Exhaust System: SOLAS compliant, wet exhaust manifold with shielding or water cooled design available for lower engine surface temperatures and improved emissions

Air System: Cummins turbocharger optimized for marine applications with wastegate for exceptional transient response. Marine grade air filter

Lubrication System: Standard capacity (18.9 L [20 qt.]) marine grade oil pan. Spin-on Cummins filters available

Certifications: Complies with IMO Tier II emissions regulations. Certificates of compliance are available from Lloyd’s Register of Shipping. Consult your local Cummins professional for a complete listing of current marine agency approvals for this engine

Optional Equipment

  • SAE A accessory drive
  • Electronic governor available

Brochures Available

Title Bulletin Number Request View  
6C Commercial And Recreational Marine Spec Sheet 4087451 View  Download
6C Commercial And Recreational Marine Spec Sheet – A4 Format 4087452 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

Technical Documents Available

Title Bulletin Number View  
4B/6B/6C Auxiliary (DEP Built Engines) Wiring Diagram 3968155 View  Download
6CT/6CTA-DM Marine Engine General Datasheet DS-5010 View  Download
6CT8.3-D(M) Marine Installation Drawing 3170379 View  Download
6CT8.3-D(M) Marine Performance Curve 122 kW (164 hp) @ 1500 RPM FR90610 View  Download
6CT8.3-D(M) Marine Performance Curve 140 kW (188 kW) @ 1800 RPM FR90609 View  Download
6CTA8.3-D(M) Dry Manifold Marine Installation Drawing 3170378 View  Download
6CTA8.3-D(M) Marine Performance Curve 163 kW (219 hp) @ 1500 RPM FR90608 View  Download
6CTA8.3-D(M) Marine Performance Curve 164 kW (220 hp) @ 1500 RPM FR90725 View  Download
6CTA8.3-D(M) Marine Performance Curve 181 kW (242 hp) @ 1800 RPM FR90724 View  Download
6CTA8.3-D(M) Marine Performance Curve 188 kW (252 hp) @ 1800 RPM FR90607 View  Download
6CTA8.3-D(M) Wet Manifold Marine Installation Drawing 3170431 View  Download
6CTA8.3-D(M)) Marine Performance Curve 201 kW (270 hp) @ 1800 RPM DM-91336 View  Download