Select Page

DCEC 6CTA8.3-M188 Marine Engine

DCEC 6CTA8.3-M188 marine main engine is a 6-cylinders in line, 8.3 liters four-strokes engine with 114mm bore and 135mm stroke.

Equipped with BYC PB fuel pump and R801 governor, engine comes with turbocharger and Water-Air Intercooler.

The prime power at 2328RPM of DCEC 6CT8.3-M188 marine main engine is 188HP.

Based on standard DCEC marine main engines, SeaMac provides both heat exchanger cooling and keel cooling marine main engines, we also provide complete propulsion system that including marine engine, gearbox, shaft, propeller as complete power system.

SeaMac provides full life cycle services for all our customers, from design to power system supply, from installation to commissioning, from after-sales service training to spare parts supply, from trouble shooting to overhaul technical support.

All of DCEC marine main engine are comes with dry type exhaust system, which means dry type exhaust manifold and dry type turbocharger, SeaMac provides upgrading services for water-cooled exhaust system, which modify dry type exhaust system into water-cooled exhaust system, which are quite important and often requested by passenger boat projects.

Advantages of 6CTA8.3-M188 Marine Engine

  • Advanced design, exquisite manufacturing technology, reliable and durable, suitable for high-strength and heavy-duty operations under severe working conditions.

  • Using high-pressure fuel pump, combustion is more complete under high fuel injection pressure, less energy loss, strong power, strong fuel adaptability, and lower emissions.

  • Adopt Holset supercharger with integral wastegate valve, low speed responsiveness and strong power.

  • Integral cylinder design, the number of parts is about 25% less than similar products, the failure rate is lower, and the maintenance is more convenient.

  • The cylinder liner adopts a platform mesh honing design and a corrosion-resistant high-nickel cast iron piston, which greatly reduces oil loss, enhances durability, and has a longer service life.

Technical Specifications

Engine Model:6CTA8.3-M188
Engine Type:6 Cylinders
Displacement:8.3 L
Rated Speed:2400 RPM
Rated Power:140kW @ 2328 RPM
Peak Torque:732 N.m @ 1500 RPM
Aspiration Method:Turbocharged & Water-Air Intercooler
Emission Standard:N / A
Bore*Storke:114 mm * 135 mm
Packing Size(L*W*H):1494 mm * 796 mm * 1228 mm
Wet Weight:604 Kg
Lead Time:15-30 Working Days
Payment Terms:T/T ,L/C

Coming Soon

Engine Model

Peak Torque

Rated Power

Fuel System


6CTA8.3-M188732 N.m @ 1500 RPM188 Hp @ 2328 RPMBYC PB Pump / R801 Mechanical GovernorTurbocharged & Water-Air Intercooler
6CTA8.3-M205828 N.m @ 1500 RPM205 Hp @ 2328 RPM BYC PB Pump / R801 Mechanical GovernorTurbocharged & Water-Air Intercooler
6CTA8.3-M2201000 N.m @ 1500 RPM220 Hp @ 1800 RPM BYC PB Pump / RSV Mechanical GovernorTurbocharged & Water-Air Intercooler
6CTAA8.3-M2601125 N.m @ 1400 RPM254 HP @ 2134 RPMWeifu PW2000 Pump / RQV-K Mechanical GovernorTurbocharged & Air-Air Intercooler

General Infomation of DCEC 6CTA8.3-M188 Marine Main Engine

Engine Model6CTA8.3 – M188Displacement8.3 L
Bore * Stroke114 mm * 135 mmRated Power188 Hp @ 2328 RPM
Cylinders6 Cylinders, in LineMaximum Power207 Hp @ 2328 RPM
Speed ControlN / AMaximum Torque732 N.m @ 1500 RPM
AspirationTurbocharged & Water-Air IntercoolerDry Weight604 kg
Fuel SystemBYC PB Pump / R801 Mechanical GovernorWet Weight674 kg

Installation Data of DCEC 6CTA8.3-M188 Marine Main Engine

Compression Ratio17.3:1
Center of Gravity from Front Face of Block427 mm
Center of Gravity Above Crankshaft Centerline163 N.m
Maximum (Static) Bending Moment at Rear Face of Block1356 N.m
Ultimate Load of Thrust Bearing – Instantaneous Maximum3558 N
Ultimate Load of Thrust Bearing – Maximum Duration1356 N
Idle Speed800 RPM
Maximum No – load Speed2720 RPM
Maximum Overspeed Performance (Not Exceeding 15 Seconds)3500 RPM
Clutch Engagement Torque at 800495 N.m

Fuel System of DCEC 6CTA8.3-M188 Marine Main Engine

Maximum Inlet Resistance of Oil Pump (Clean Filters)150 mmHg
Maximum Fuel Return Resistance520 mmHg

Performance Curve-DCEC Cummins 6CTA8.3-M188 Marine Main engine

System Technical Data of DCEC 6CTA8.3-M188 Marine Main Engine

Exhaust SystemMaximum Inlet Resistance of Oil Pump (Clean Filters)150 mmHg
Maximum Fuel Return Resistance520 mmHg
Rotate Speed 1500rpmOil Pressure282 kPa
Air Flow9.1 m³ / min
Exhaust Gas Flow31 m³ / min
Exhaust Gas Temperature602
Fuel Consumption26.9 l / hr
Coolant Flow168 l / min
Heat Loss68 kW
Wear Power20 kW
Rotate Speed 2400rpmOil Pressure345 kPa
Air Flow18.9 m³ / min
Exhaust Gas Flow47 m³ / min
Exhaust Gas Temperature625
Fuel Consumption43 l / hr
Coolant Flow276 l / min
Heat Loss111 kW
Wear Power42 kW
LubricationSystemOil Pan Volume – Upper Limit19.0 L
Oil Pan Volume – Lower Limit15.2 L
Total System Volume23.6 L
Angularity of Standard Oil Pan – Front Down45 °
Angularity of Standard Oil Pan – Front Up45 °
Angularity of Standard Oil Pan – Side to Side45 °
Low Oil Level Inclination Angle – Exhaust Side UpwardN / A
Oil Pan Volume45 L
Air Intake SystemMaximum Temperature Rise from Ambient to the Inlet of the Turbocharger15
Maximum Intake Resistance (Use Dry Air Filter, Clean Filter Element)2.9 kPa ( 300mmHg )
Maximum Allowable Air Intake Resistance (Dirty Filter Element)6.2 kPa ( 635mmHg )
Cooling SystemCoolant Capacity12.3 L
Thermostat Standard Regulating Temperature (Range)83 – 95
Maximum Coolant Pressure (Without Pressure Cap,Thermostat Closed)280 kPa
Maximum Coolant Temperature (Engine Outlet)100
Minimum Engine Coolant Temperature70
Minimum Allowable Pressure Cap Pressure50 kPa
Coolant Alarm Temperature100
24 Volt Electrical SystemMaximum Resistance of Startup Circuit0.002 Ω
Cold Start Current When Engine And Clutch Separate510 CCA
Cold Starting SystemMinimum Ambient Temperature for Unaided Cold Start – 12

Scopes of Supply of DCEC 6CTA8.3-M188 Marine Main Engine

Air Intake System1. Air Intake Manifold        Exhuast System1. Exhuast Manifold
2. Air Filter2. Turbocharger
3. N / A3. Exhuast Elbow
Starting System1. Starter Motor        Charging System1. Charging Alternator
2. Starter Rely2. N / A
Lubricating System1. Oil Pump        Fuel System1. Fuel Transfer Pump
2. Oil Filter2. High-Pressure Fuel Pump
3. N / A3. Machanical Governor
4. N / A4. Fuel Filter
Engine Shut-Down System1. Engine Fuel Shut-Off Solenoid        Power Output System1. Flywheel
2. N / A2. Standard Flywheel Housing

Optional Accessories of DCEC 6CTA8.3-M188 Marine Main Engine

Air Intake System1. Air Intake Pre-HeaterExhuast System1. Muffler & Bellows
2. Air Intake Pre-Filter2. Flame Trap
3. Air Filter Alarm System3. Spark Arrestor Type Muffler & Bellows
4. N / A4. DPF System
Fuel System1. Coarse FilterEngine Auiliary Accessories1. Hydraulic Oil Pump
2. Fuel Pre-Heater2. Hydraulic Cluch
Starting System1. Manual Magnetic DC ContactorCooling System1. Engine Monitor
2. Dual Ears Flywheel Housing2. Engine Protection System With Alarm System
3. Spring Starter Motor3. Machanical Engine Control Lever Syste
4. Air Starter Motor4. Electric Engine Control Lever System
5. Hydraulic Starter Motor5. N / A
6. Manual Magnetic DC Contactor6. N / A
Power Output System1. Gear Reduction GearboxCooling System1. Coolant Pre-Heater
2. Reverse Gear Box2. Jacket Water Heater
Lubricating System1. Oil Pre-HeaterEngine Mounting System1. Shock Absorber Pad


Committed to providing reliable premium propulsion system and power system for all kinds of ships around the world, SeaMac is a sub-brand of EMAC group that focused on maritime application.
SeaMac’s ranges of products mainly inclduing marine main engine, marine gearbox, marine propellers, marine control lever system, marine auxiliary engine, marine generator set and emergency generator set.
For more information of our marine proplusion and power system products, you are welcome to visit SeaMac homepage:

Modifiable components of DCEC 6CTA8.3-M188 Marine Main Engine

Air Intake System1. Installation Position of Air FilterStarting System1. 12V Starter Motor for 12V Electric System
2. Upgrade to Heavy-Duty Type Air Fitler2. Upgrading to Specified Brand and Speicifications of Starter Motor
Exhuast System1. Can Modify Installation Position and Direction of TurbochargerCharging System1. 12V Charging Alternator for 12V Electric System
2. Water-Cooled Exhuast Manifold2. Explosion-Proof Charging Alternator
3. Water-Cooled Turbocharger3. Upgrading to Specified Brand and Speicifications of Charging Alternator
Fuel System1. Upgrade to Fuel Fitler That Integrated with Fuel Transfer Pump and Fuel Pre-HearterEngine Auiliary Accessories1. Additional Auxiliary Systems Can Be Added for Special Applications
Engine Shut-Down System1. 12V Solenoid for 12V Electric SystemCooling System1. Can Modify Engine Into Keel Cooling System
2. Explosion-Proof Solenoid2. N / A
Lubricating System1. Oil Pan PositionPower Output System1. Can Modify Size of Flywheel Housing and Flywheel
2. Number of Dipstick2. Dual-Ear Flywheel Housing (For Twin-Starter System)
3. Position of Dipstick Can Choose from 6 Positions3. Some of Models Can Modify Flywheel Housing Into PTO Integrated Type
4. Can Modify Oil Filter to Be Remote Installation4. Engine Have Connecting Port of PTOs, That Able to Provide Power Output
Engine Mounting System1. Can Modify Engine Mouting Bracket

Note: All Above Data are Just for Reference, All Data Might Change Without Notices or Updates, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.

The picture of Sale Manual showing the accessories and scopes of supply.

Engine Sale Manual

The picture of Installation Drawing showing the accessories and scopes of supply.

Installation Drawing

The picture of Installation Manual showing the accessories and scopes of supply.

Installation Manual

The picture of Operation Manual showing the accessories and scopes of supply.

Operation Manual

The picture of Engine Parts Catalogue showing the accessories and scopes of supply.

Parts Catalogue

The picture of Test Report and Certifcate showing the accessories and scopes of supply.

Report & Certifcate

WhatsApp Online logo

Sales Team

Marine Service - SeaMacWhatApp-Icon

Automotive Service - DuraMacWhatApp-Icon

Industrial Service - ConeMacWhatApp-Icon

Generator Service - SINOGENWhatApp-Icon

Pump Service - PumpMacWhatApp-Icon

Parts Service - PartMacWhatApp-Icon

Sales Manager - Mrs. Wendy Fu

Sales Director - Mr. Jasper Lee       WhatApp-Icon

Shipping Service

Contact EMAC Now!

Subscribe To Our Newsletter

Subscribe To Our Newsletter

Subscribe to get the latest updates from

Welcome on board, we will keep you updated with latest news and business activities!

Pin It on Pinterest