DCEC 6CTAA8.3-M260 Marine Engine
DCEC 6CTAA8.3-M260 marine main engine is a 6-cylinders in line, 8.3 liters four-strokes engine with 114mm bore and 135mm stroke.
Equipped with Weifu PW fuel pump and RQV-K governor, engine comes with turbocharger and Air- Air Intercooler.
The prime power at 2134RPM of DCEC 6CTAA8.3-M260 marine main engine is 260HP.
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 6CTAA8.3-M260 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: | 6CTAA8.3-M260 |
| Engine Type: | 6 Cylinders |
| Displacement: | 8.3 L |
| Rated Speed: | 1500 RPM |
| Rated Power: | 254 HP @ 2134 RPM |
| Peak Torque: | 1125 N.m @ 1400 RPM |
| Classification: | N/A |
| Aspiration Method: | Turbocharged & Air-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: | 636 kg |
| Lead Time: | 15-30 Working Days |
| Payment Terms: | T/T ,L/C |
Engine Model | Peak Torque | Rated Power | Fuel System | Aspiration |
| 6CTA8.3-M188 | 732 N.m @ 1500 RPM | 188 Hp @ 2328 RPM | BYC PB Pump / R801 Mechanical Governor | Turbocharged & Water-Air Intercooler |
| 6CTA8.3-M205 | 828 N.m @ 1500 RPM | 205 Hp @ 2328 RPM | BYC PB Pump / R801 Mechanical Governor | Turbocharged & Water-Air Intercooler |
| 6CTA8.3-M220 | 1000 N.m @ 1500 RPM | 220 Hp @ 1800 RPM | BYC PB Pump / RSV Mechanical Governor | Turbocharged & Water-Air Intercooler |
| 6CTAA8.3-M260 | 1125 N.m @ 1400 RPM | 254 HP @ 2134 RPM | Weifu PW2000 Pump / RQV-K Mechanical Governor | Turbocharged & Air-Air Intercooler |
| ——END—— | ||||
General Infomation of DCEC 6CTAA8.3-M260 Marine Main Engine | |||
| Engine Model | 6CTAA8.3 – M260 | Displacement | 8.3 L |
| Bore * Stroke | 114 mm * 135 mm | Aspiration | Turbocharged & Air-Air Intercooler |
| Cylinders | 6 Cylinders, in Line | Fuel System | WEIFU PW2000 / RQV_K |
| Speed Control | N / A | Rated Power | 260 BHP @ 2134 RPM |
| Maximum Power | 284 BHP @ 2200 RPM | Maximum Torque | 1125 N.m @ 1400 RPM |
| Dry Weight | 636 kg | Low Idle Speed | 600 – 800 RPM |
| Instantaneous Inertia of Rotating Parts (With Flywheel) | 0.37 kg.m² | Distance Between Center of Gravity and Rear End Face of Cylinder Block | 429 mm |
| Distance From Center of Gravity to Center Line of Crankshaft (Above Crankshaft) | 212 mm | High Idle Speed | 2430 RPM |
| Piston Speed | 9.6 m / sec | The Ignition Sequence | 1 – 5 – 3 – 6 – 2 – 4 |
Installation Data of DCEC 6CTAA8.3-M260 Marine Main Engine | |||
| Maximum (Static) Bending Moment at Front Support Mounting Surface | 495 N.m | ||
| Maximum (Static) Bending Moment at Rear Face of Block | 1356 N.m | ||
| Maximum (Static) Bending Moment Allowed for Side-mounted Boss | N / A | ||
| Finished Engine Instantaneous Inertia – Turning Shaft | 29.8 kg.m² | ||
| Finished Engine Instantaneous Inertia- Pitch Axis | 76.8 kg.m² | ||
| Finished Engine Instantaneous Inertia- Partial Rotation | 66.8 kg.m² | ||
Fuel System of DCEC 6CTAA8.3-M260 Marine Main Engine | |||
| Maximum Fuel Flow on the Supply Side of the Fuel Pump | 300 litre | ||
| Maximum Fuel Supply Restriction at Fuel Pump Iinlet-with Clean Fuel Filter Element(s) at Maximum Fuel Flow | 13.6 kPa | ||
| Maximum Fuel Supply Restriction at Fuel Pump Iinlet-with Dirty Fuel Filter Element(s) at Maximum Fuel Flow | 27.1 kPa | ||
| Maximum Fuel Drain Restriction (Total Head) Before (Or Without) Check Valve | 69 kPa | ||
| Maximum Fuel Inlet Temperature | 60 ℃ | ||
| ——END—— | |||
System Technical Data of DCEC 6CTAA8.3-M260 Marine Main Engine | ||
| Exhaust System | Maximum Exhaust Back Pressure | 10.1 kPa |
| Exhaust Flow Rate | N / A | |
| Exhaust Temperature | 570 ℃ | |
| Exhaust Heat Loss Work | N / A | |
| Recommended Exhaust Pipe Diameter | 75 mm | |
| Maximum Static Support Weight Of Supercharger Outlet Flange | 14 kg | |
| Air Intake System | Maximum Allowable Intake Resistance (Using Heavy Duty Air Filter)—Clean Element | 3.7 kPa |
| Maximum Allowable Intake Resistance (Using Heavy Duty Air Filter)—Dirty Element | 6.2 kPa | |
| Use A Heavy-Duty Air Filter With Minimal Dirt Blocking Capability | 53 g / litre / sec | |
| Maximum Temperature Rise Of External Air To Supercharger Inlet | 17 ℃ | |
| Inlet Flow | 50 kg / hr | |
| Environmental Heat Loss Work | N / A | |
| Minimum Ambient Temperature For Cold Starting | – 12 ℃ | |
| Minimum Inlet Pipe Diameter Allowed | 65 mm | |
| LubricationSystem | Maximum Lube Oil Flow for Engine Accessories | 7.6 litre / min |
| Normal Operating Oil Pressure Range-Low Idle Minimum Oil Pressure | 69 kPa | |
| Normal Operating Oil Pressure Range-Maximum Oil Pressure at Rated Point | 426 kPa | |
| Maximum Sump Oil Temperature | 121 ℃ | |
| Minimum Capacity Of Lubricating System (Oil Pan + Oil Filter) | 23.6 litre | |
| By-Pass Valve Should Be Filtered | Yes | |
| Sump Inclination Angle (Suitable For Intermittent Service)—The Front Of The Upward | 45 ° | |
| Sump Inclination Angle (Suitable For Intermittent Service)— The Front Of The Downward | 45 ° | |
| Sump Inclination Angle (Suitable For Intermittent Service)— Edge to Edge | 45 ° | |
| Cool Start System | Minimum Battery Capacity(Below -18 ℃) | 12 V 24 V |
| Minimum Battery Capacity(Below -18 ℃)— Engine Cold Starting Current | 1250 CCA 625 CCA | |
| Minimum Battery Capacity(Below -18 ℃)—Engine Reserve Capacity | 360 * 180 min | |
| Minimum Environmental Temperature When Cold Start Unassisted | – 12 ℃ | |
| Minimum Engine Speed When Cold Start Unassisted | 125 RPM | |
| Starting Torque At -12 ℃ | N / A | |
| Cooling System | Engine Coolant Volume (Engine Only) | 11.4 litre |
| Minimum Pump Inlet Pressure (Without Pressure Cap, Thermostat Open) | N / A | |
| Maximum Static Height of Coolant Above Crankshaft Centerline of Engine | N / A | |
| Thermostat Standard Regulating Temperature (Range) | 82 – 95 ℃ | |
| Maximum Cylinder Block Coolant Pressure (Without Pressure Cover, Thermostat Closed) | N / A | |
| Minimum Pressure Cap | 50 kPa | |
| Maximum Engine Coolant Temperature at Engine Outlet | 100 ℃ | |
| Minimum Engine Coolant Temperature | 71 ℃ | |
| Minimum Coolant Expansion Volume Relative To System Capacity | 6 % | |
| Coolant Heat Loss Work | N / A | |
| Engine Coolant Flow -4Psi(28 kPa) External Engine Cooling Cycle Resistance | 344 litre / min | |
| Engine Coolant Flow -8Psi(55 kPa) External Engine Cooling Cycle Resistance | 314 litre / min | |
| Maximum Engine External Cooling Cycle Resistance | 34 kPa | |
| Sea Pump Flow | 208 litre / min | |
| Maximum Degassing Time | 25 min | |
| Minimum Coolant Water Loss Volume Relative To The Whole System Capacity | 0.11 % | |
| Coolant Outlet Temperature When The Clutch Fan Is Running | 93 ℃ | |
| ——END—— | ||
Scopes of Supply of DCEC 6CTAA8.3-M260 Marine Main Engine | ||||
| Air Intake System | 1. Air Intake Manifold | Exhuast System | 1. Exhuast Manifold | |
| 2. Air Filter | 2. Turbocharger | |||
| 3. N / A | 3. Exhuast Elbow | |||
| Starting System | 1. Starter Motor | Charging System | 1. Charging Alternator | |
| 2. Starter Rely | 2. N / A | |||
| Lubricating System | 1. Oil Pump | Fuel System | 1. Fuel Transfer Pump | |
| 2. Oil Filter | 2. High-Pressure Fuel Pump | |||
| 3. N / A | 3. Machanical Governor | |||
| 4. N / A | 4. Fuel Filter | |||
| Engine Shut-Down System | 1. Engine Fuel Shut-Off Solenoid | Power Output System | 1. Flywheel | |
| 2. N / A | 2. Standard Flywheel Housing | |||
| ——END—— | ||||
Optional Accessories of DCEC 6CTAA8.3-M260 Marine Main Engine | ||||
| Air Intake System | 1. Air Intake Pre-Heater | Exhuast System | 1. Muffler & Bellows | |
| 2. Air Intake Pre-Filter | 2. Flame Trap | |||
| 3. Air Filter Alarm System | 3. Spark Arrestor Type Muffler & Bellows | |||
| 4. N / A | 4. DPF System | |||
| Fuel System | 1. Coarse Filter | Engine Auiliary Accessories | 1. Hydraulic Oil Pump | |
| 2. Fuel Pre-Heater | 2. Hydraulic Cluch | |||
| Starting System | 1. Manual Magnetic DC Contactor | Cooling System | 1. Engine Monitor | |
| 2. Dual Ears Flywheel Housing | 2. Engine Protection System with Alarm System | |||
| 3. Spring Starter Motor | 3. Machanical Engine Control Lever Syste | |||
| 4. Air Starter Motor | 4. Electric Engine Control Lever System | |||
| 5. Hydraulic Starter Motor | 5. N / A | |||
| 6. Manual Magnetic DC Contactor | 6. N / A | |||
| Power Output System | 1. Gear Reduction Gearbox | Cooling System | 1. Coolant Pre-Heater | |
| 2. Reverse Gear Box | 2. Jacket Water Heater | |||
| Lubricating System | 1. Oil Pre-Heater | Engine Mounting System | 1. Shock Absorber Pad | |
| ——END—— | ||||
Modifiable components of DCEC 6CTAA8.3-M260 Marine Main Engine | ||||
| Air Intake System | 1. Installation Position of Air Filter | Starting System | 1. 12V Starter Motor for 12V Electric System | |
| 2. Upgrade to Heavy-Duty Type Air Fitler | 2. Upgrading to Specified Brand and Speicifications of Starter Motor | |||
| Exhuast System | 1. Can Modify Installation Position and Direction of Turbocharger | Charging System | 1. 12V Charging Alternator for 12V Electric System | |
| 2. Water-Cooled Exhuast Manifold | 2. Explosion-Proof Charging Alternator | |||
| 3. Water-Cooled Turbocharger | 3. Upgrading to Specified Brand and Speicifications of Charging Alternator | |||
| Fuel System | 1. Upgrade to Fuel Fitler That Integrated with Fuel Transfer Pump and Fuel Pre-Hearter | Engine Auiliary Accessories | 1. Additional Auxiliary Systems Can Be Added for Special Applications | |
| Engine Shut-Down System | 1. 12V Solenoid for 12V Electric System | Cooling System | 1. Can Modify Engine Into Keel Cooling System | |
| 2. Explosion-Proof Solenoid | 2. N / A | |||
| Lubricating System | 1. Oil Pan Position | Power Output System | 1. Can Modify Size of Flywheel Housing and Flywheel | |
| 2. Number of Dipstick | 2. Dual-Ear Flywheel Housing (For Twin-Starter System) | |||
| 3. Position of Dipstick Can Choose from 6 Positions | 3. Some of Models Can Modify Flywheel Housing Into PTO Integrated Type | |||
| 4. Can Modify Oil Filter to Be Remote Installation | 4. Engine Have Connecting Port of PTOs, That Able to Provide Power Output | |||
| Engine Mounting System | 1. Can Modify Engine Mouting Bracket | |||
| ——END—— | ||||
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.
Engine Sale Manual
Installation Drawing
Installation Manual
Operation Manual
Parts Catalogue
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