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C280-12-5444 Marine Main Engine

The Caterpillar C280-12-5444 marine main engine series is an I-12, 4-Stroke-Cycle-Diesel engine with a 280 mm (11 in) bore, 300 mm (11.8 in) stroke and 222 L (134563 cu in) displacement. Lube oil system with replaceable oil filter: 3445 L (910 gal) with common rail fuel system and electronic (A5E2 V2 ECM) governor.
The Caterpillar C280-12-5444 marine main engine series has a rated speed range of 1000 RPM and a rated power range of 5444 bhp (4060 bkW).
Caterpillar C280-12-5444 marine main engine series complies with US EPA Tier 3/IMO II emission certifiCaterpillarion (commercial), RCD 2016, EU Stage IIIA emission standards, CCNR Stage II standards by following EU Stage IIIA standards, and the intake air is turbocharged cold.
Combustion air temperatures up to 50°C (122°F) measured at the turbocharger air compressor inlet, seawater temperatures up to 32°C (89.6°F) and fuel temperatures up to 40°C ( 104°F).
As a partner of Caterpillar marine main engine for many years, EMAC is a professional power system solution provider. We provide global customers with one-stop power system-sales solutions from power system design to power system supply, from installation to commissioning, and from after-sales. Program. With sales service support for spare parts supply, EMAC is your reliable powertrain partner, offering you the best cost-effective and reliable system solutions.

Advantages of Cat C280-12-5444 Marine Main Engine

  • Engine Design : Proven reliability and durability, 45°C ambient capability*, Robust diesel strength design prolongs life and lowers owning and operating costs, Broad operating speed range.

  • Custom Packaging : Trust a Cat factory custom package to meet your exact petroleum application needs. Cat engines, generators, enclosures, controls, radiators, transmissions — anything your project requires — can be custom designed and matched to create a one-of-a kind solution. Custom packages are globally supported and are covered by a one-year warranty after startup.

  • Full Range of Attachments : Large variety of factory-installed engine attachments reduces packaging time.

  • Testing : Every engine is full-load tested to ensure proper engine performance.

  • Over 80 Years of Engine Manufacturing Experience : Over 80 years of natural gas engine production Ownership of these manufacturing processes enables Caterpillar to produce high quality, dependable products.

Technical Specifications

Basic Introduction of Caterpillar C280-12-5444 Marine Main Engine

Engine Model:C280-12-5444
Engine Type:Inline 12, 4-Stroke-Cycle Diesel
Displacement:222 L (13,456 in³)
Rated Speed:1000 RPM
Aspiration Method:Turbocharged Aftercooled (TA)
Emission Standard:UN ECE R96 Stage IIIA
Bore*Storke:280 mm (11 in) * 300 mm (11.8 in)
Packing Size(L*W*H):4612 mm * 2202 mm * 3404 mm
Weight , Net Dry:25980 kg (57276 lb)
Lead Time:15-30 Working Days
Payment Terms:T/T ,L/C

Engine Model

Rated Power



C280-8-ME32993345 MHP / 3299 BHP / 2460 bkWTurbocharged-AftercooledIMO Tier II, IMO Tier III,EPA Marine Tier 4
C280-8-ME36343684 MHP / 3634 BHP / 2710 bkWTurbocharged-AftercooledIMO Tier II, IMO Tier III,EPA Marine Tier 4
C280-12-ME49625031 MHP / 4962 BHP / 3700 bkWTurbocharged-AftercooledIMO Tier II, IMO Tier III,EPA Marine Tier 4
C280-12-ME54445520 MHP / 5444 BHP / 4060 bkWTurbocharged-AftercooledIMO Tier II, IMO Tier III,EPA Marine Tier 4

General Engine Specifications of CAT C280-12-ME5444 Marine Main Engine

Engine SpecificationsVee 12, 4-Stroke-Cycle-DieselEmissionIMO Tier II , IMO Tier III , EPA Marine Tier 4
Displacement222 L (13,456 in³)Bore * Stroke280 mm (11 in) * 300 mm (11.8 in)
Rated Engine Speed1000 RPMAspirationTurbocharged- Aftercooled
Overall Length4612 mm (181.6 in)Overall Width2202 mm (79.6 in)
Overall Height3404 mm (134.0 in)Weight, Net Dry (approx)25980 kg (57276 lb)
Electronically Governed A4 ECUCooling SystemSingle or Combined
Engine MountedFreshwater and Seawater PumpsCooling System800 L (210 gal)
Lube Oil System3445 L (910 gal)Engine Diagnostics and General AlarmProgrammable Parameters
Engine Coolant Water Drains Counterclockwise Rotation

Performance of CAT C280-12-ME5444 Marine Main Engine

Max PowerCS Rating EM0842/EM0852 Fuel ConsumptionDEF ConsumptionProp DemandMC Rating EM0843/EM0853 Fuel ConsumptionDEF Consumption
Assumes 40% DEF Fluid ConcentrationAssumes 40% DEF Fluid Concentration

Clean Emissions Module (CMF) of CAT C280-12-ME5444 Marine Main Engine

CEM Dimensions & WeightsLength1828.4 mm / 71.9 inDosing CabinetLength940 mm / 37.0 in
Width2003.2 mm / 78.8 inWidth500 mm / 19.7 in
Height3869.7 mm / 1523 inHeight585 mm / 23.0 in
Weight4500 kg / 9800 lbAccess610 mm / 24.0 in (Sides)
N/AN/A457 mm / 8.0 in (Front)
N/AN/A52 mm / 6.0 in (Rear)
Mixing Tube DimensionsLength3076 mm / 121.1 in
Diameter514 mm / 20.2 in

Standard Engine Equipment of CAT C280-12-ME5444 Marine Main Engine

Air Intake System1. Air Intake ClosedFuel System1. Oil Transfer Pump (Installed on The Left)
2. Top Mounted Crankcase Breather2. Duplex Fuel Filter
3. Turbocharger Lubricated with Engine Oil3. Electronically Controlled Unit Injector
4. Fresh Water Aftercooler with Corrosion Resistant Coating (Air Side)4. Distillate Fuels (Requires A Viscosity Range of 1.4 cSt to 20 cSt at 38°C)
Control System1. Two Caterpillar A-Iii Engine Electronic Control Modules with Electronic Unit Injectors Fuel SystemCooling System1. Engine Coolant Drain
2. Hard Wire Harness (Requires 10A, 24V Power Supply to Drive The Engine Electronic Control Module)2. N/A
Lubrication System1. Oil Filler and DipstickUniversal1. Caterpillar Yellow Spray Paint
2. Oil Pressure Regulating Valve2. Gear Driven Pumps: Fuel, Oil, Jacket Water, Aftercooler/Oil Cooler Water
3. Crankcase Explosion-Proof Safety Valve3. N/A
4. Centrifugal Oil Filter with Single Shut-Off Valve4. N/A
Exhaust System1. Dry Airtight Exhaust Manifold

Optional Equipment of CAT C280-12-ME5444 Marine Main Engine

Engine Application1. Crankshaft Deflection MarkEngine Kit Description1. Auxiliary Drive
2. Additional Mounting Feet2. Short Shaft Certification
Cooling System1. Auxiliary Water PumpProtection System1. Surveillance System
2. Jacket Water Heater2. Turbocharger Speed Sensor
3. Heat Recovery System3. Cylinder Pressure Relief Valve
4. Heat Recovery Thermostat4. Oil Mist Detector
5. Oil and Gas Separator5. N/A
6. Connector for Driven Equipment6. N/A
7. Cooling System Joint Assembly7. N/A
Air Intake System1. Air FilterStarting System1. Pressure Booster Control Valve, Pressure Reducing Valve
2. Air Filter Options2. N/A
Exhaust System1. Outlet ExpanderFuel System1. Fuel Priming Pump
2. Expansion Exhaust Joint2. Duplex Fuel Prefilter
3. Welded Flange3. Fuel System Connector
Spare Parts Kit1. Intake and Air SystemEngine Test1. Basic System Test
2. Basic Engine2. Special Eyewitness Test
3. Cylinder Head3. Customer Selected Test Point
4. Fuel System4. Marine Limit Line Test
5. Cooling System5. Propeller Demand Curve Testing
6. Instrument6. N/A
7. Cylinder Valve Kit7. N/A
Lubrication System1. Oil Pan Drain Valve
2. Lubrication Joint
3. Lube Oil Heater

Modifiable of CAT C280-12-ME5444 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
Cooling System1. Can Modify Engine Into Keel Cooling SystemEngine Auiliary Accessories1. Additional Auxiliary Systems Can Be Added for Special Applications
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 BracketFuel System1. Upgrade to Fuel Fitler That Integrated with Fuel Transfer Pump and Fuel Pre-Hearter

Note: All Above Data are Just for Referenece, All Data Might Change Without Notices or Update, 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

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