Caterpillar C18-454 Marine Main Engine
The Caterpillar C18-454 marine main engine series is an I-6, 4-Stroke-Cycle-Diesel engine with a 145 mm (5.7 in) bore, 183 mm (7.2 in) stroke and 18.0 L (1098 cu in) displacement. Lube oil system with replaceable oil filter: 45 L (12 gal) with common rail fuel system and electronic (A5E2 V2 ECM) governor.
The Caterpillar C18-454 marine main engine series has a rated speed range of 1800 RPM and a rated power range of 454 bhp (339bkW).
Caterpillar C18-454 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 C18-454 Marine Main Engine
It is synchronized with Cummins’ advanced design and sophistiCaterpillared manufacturing, adapts to harsh working conditions, and has high-intensity and heavy-duty work capabilities.
The Holset wastegate valve makes the low speed performance more perfect and the power performance better.
Holset supercharger with integrated wastegate valve, low speed response and strong power.
Using forged steel camshaft and crankshaft, high-strength cylinder design, many parts are cast on the cylinder, with high rigidity, high pressure resistance, good reliability and longer service life.
The cylinder liner adopts a platform mesh honing design, which effectively prevents oil leakage with a perfect geometric structure, and adopts advanced technology such as new piston ring components and gasket crimping molding to reduce oil loss.
The cylinder block and cylinder head adopt integrated design to prevent the occurrence of engine water and oil leakage. The parts are 40% less than other similar engines, and the failure rate is greatly reduced.
Technical Specifications
Basic Introduction of Caterpillar C18-454 Marine Main Engine
Engine Model: | C18-454 |
Engine Type: | Inline 6, 4-Stroke-Cycle Diesel |
Displacement: | 18 L |
Rated Speed: | 1800 RPM |
Aspiration Method: | Turbocharged Aftercooled (TA) |
Emission Standard: | UN ECE R96 Stage IIIA |
Bore*Storke: | 1145 mm (5.7 in)*183 mm (7.2 in) |
Packing Size(L*W*H): | 1854 mm * 1134 mm * 1300 mm |
Weight , Net Dry: | 1950 kg (4299 lb) |
Lead Time: | 15-30 Working Days |
Payment Terms: | T/T ,L/C |
Engine Model | Rated Power | Rating | Aspiration |
C18-ME454 | 454 BHP (339 bkW) @ 1800 RPM | A Rating – EM0082-00 | Turbocharged and Aftercooled |
C18-ME479 | 479 BHP (357 bkW) @ 1800 RPM | A Rating – EM0083-00 | Turbocharged and Aftercooled |
C18-ME600 | 600 BHP (448 bkW) @ 1800 RPM | A Rating – EM0075-00 | Turbocharged and Aftercooled |
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General Engine Specifications of CAT C18-ME454 Marine Main Engine | |||
Basic Engine Specifications | I-6, 4-Stroke-Cycle-Diesel | Emission | IMO II Compliant |
Displacement | 18.0 L (1098 in³) | Bore*Stroke | 145 mm (5.7 in)*183 mm (7.2 in) |
Rated Engine Speed | 1800 RPM | Aspiration | Turbocharged and Aftercooled Aspiration |
Fuel System | MEUI Fuel System | Refill Capacity – Lube Oil System | 49 L (13 gal) Shallow Pan |
Refill Capacity – Cooling System | 45 L (12 gal) | Refill Capacity – Lube Oil System | 68 L (18 gal) Deep Pan |
Length | 1854 mm (73.0 in) | Width | 1134 mm (44.6 in) |
Height | 1300 mm (51.2 in) | Weight, Dry (Approx) | 1950 kg (4299 lb) |
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Performance of CAT C18-ME454 Marine Main Engine | ||||||||||||
Max Power | RPM | BHP | g/hr | bkW | g/bkW-hr | Prop Demand | RPM | BHP | g/hr | bkW | g/bkW-hr | |
1800 | 454 | 22.6 | 339 | 212.1 | 1800 | 454 | 22.6 | 339 | 212.1 | |||
1600 | 447 | 21.9 | 333 | 208.7 | 1600 | 319 | 15.9 | 238 | 212.1 | |||
1400 | 396 | 18.9 | 295 | 203.4 | 1400 | 214 | 10.7 | 159 | 214.1 | |||
1000 | 169 | 8.2 | 126 | 205.8 | 1000 | 78 | 4.1 | 58 | 226 | |||
600 | 82 | 3.9 | 61 | 203.3 | 600 | 17 | 1.2 | 13 | 292.5 | |||
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coming soon
Standard Engine Equipment of CAT C18-ME454 Marine Main Engine | |||
Separate Circuit Aftercooler (SCAC) | Fuel Filter, Front Service | Watercooled Exhaust Manifold and Turbocharger | Electronic Diagnostics and Fault Logging |
Heavy-Duty Inlet Air Filter | Fuel Transfer and Priming Pumps | Center Sump Oil Pan, Deep or Shallow | Front Support Adjustable Mounting System |
Heat Exchanger or Keel Cooling | Hybrid Fuel Lines | Oil Filler, Filter, and Dipstick, Front Service | Front Damper Guard |
SCAC and JW Shunt Tanks with Sight Glass | Electronic Fuel / Air Ratio Control | MEUI Fuel System | Customer Wiring and Service Tool Connector |
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Optional Equipment of CAT C18-ME454 Marine Main Engine | |||
Exhaust System | 1. Dry Bend | Instrument | 1. Dashboard: Marine Power Display, Color Marine Power Display, Color Mpd (Marine Power Display) Dual Display Harness, Mpd Wiring Connector Kit |
2. Water-Cooled Elbow | 2. Oem Wiring Harness | ||
3. Expansion Joint | 3. Wiring Harness Between Engines | ||
4. Flange | 4. Meter | ||
5. Silencer | 5. Transmission Sensor | ||
6. Spark Extinguishing Muffler | 6. Oil Level Sensor | ||
Lubrication System | 1. Duplex Oil Filter | Install The System | 1. Vibration Isolator |
2. Transmission Oil Cooler | 2. Front Support | ||
3. Sump Pump | 3. Rear Support | ||
Air Intake System | 1. Air Intake Adapter | Cooling System | 1. Auxiliary Expansion Tank Flange Kit |
Charging System | 1. Battery Charger | Fuel System | 1. Duplex Fuel Filter |
2. Charging The Alternator | 2. Fuel Hose | ||
3. Alternator Installation Assembly | 3. Fuel Cooler | ||
4. Ammeter | 4. Primary Fuel Filter | ||
Control System | 1. Mecp I | Protection System | 1. Classification Societies and Solas |
2. Caterpillar Alarm Systems and Protection | 2. Classification Societies and Fire Performance | ||
Starting System | 1. 24 V Single Starter Motor | Power Output | 1. The Pto (Power Take Off) Option Requires Torsional Vibration Analysis |
2. Air Starter Motor | 2. Crankshaft Pulley | ||
3. Air Starting Accessories | 3. Front Short Shaft | ||
4. Start Aid – Jw Heater | 4. Hydraulic Pump Drive Adapter | ||
5. Battery Pack – 24 Volt – Dry | 5. Front Closed Clutch | ||
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Modifiable of CAT C18-ME454 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 | |||||
Cooling System | 1. Can Modify Engine Into Keel Cooling System | Engine Auiliary Accessories | 1. Additional Auxiliary Systems Can Be Added for Special Applications | |||
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 | Fuel System | 1. Upgrade to Fuel Fitler That Integrated with Fuel Transfer Pump and Fuel Pre-Hearter | |||
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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.

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