C4.4-AE108 Marine Auxiliary Engine

The Caterpillar C4.4-AE108 marine auxiliary engine is an I-4, 4-Stroke-Cycle-Diesel engine with a 105.0 mm (4.13 in) bore, 127.0 mm (5.0 in) stroke and 4.4 L (268.5 in³) displacement.
The Caterpillar C4.4-AE108 marine auxiliary engine is rated at 1500 RPM and rated at 144 BHP (108 bkW).
Caterpillar C4.4-AE108 marine auxiliary engine complies with U.S. EPA Tier 3, Tier 2 emission standards for stationary emergency marine auxiliary engines. FM Approved, UL Listed, air intake is turbocharged After cooling.
As part of EMAC, Caterpillar Marine Auxiliary also offers high performance propulsion and handling solutions Engine, engine provides electronic control and mechanical, fuel common rail system for customers to choose, we provide full life cycle service for all customers, from design to ship power system supply, from installation to commissioning, from after-sales service training to spare parts supply, from Troubleshooting to Overhaul Technical Support.

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Advantages of C4.4-AE108 Marine Main Engine

1. Configure the engine how you want it, package it yourself.
2. Compact engine profile with high power density.
3. Ease of repower with multiple cooling system options: Single circuit keel cooling /Separate ircuit keel cooling / Heat exchanger.
4. Clean, smooth, and quiet operations.
5. Advanced fuel system provides excellent fuel consumption and low smoke.
6. Proven core engine design with millions of operating hours.
7. Fewer maintenance touchpoints and longer service intervals.
8. Superior response time and acceleration; 12V or 24V electrical system; Gear driven jacket water pump and sea water pump for superior reliability; Maintenance free valve train with hydraulic valve lash adjusters.
9. No visible smoke; Common rail fuel system enables optimum combustion and low emissions; Reduced combustion noise through advanced electronic control; Closed crankcase ventilation system improves engine room cleanliness.

Technical Specifications

Basic Introduction of C4.4-AE108 Marine Auxiliary Engine

Engine Model:	C4.4-AE108
Engine Type:	I-4, 4-Stroke-Cycle-Diesel
Displacement:	4.4 L
Rated Speed:	1500 RPM
Aspiration Method:	Turbocharged Aftercooled (TA)
Emission Standard:	Tier 3
*BoreStorke:**	105 mm (4.13 in)*127 mm (5 in)
*Packing Size(LWH):*	N/A
Weight , Net Dry:	579 kg (1278 lb)
Lead Time:	15-30 Working Days
Payment Terms:	T/T ,L/C

Engine Model	Rated Power	Aspiration	Fuel system type
C4.4-AE71	71 bkW (95 BHP) @ 1500 RPM	Turbocharged Aftercooled (TA)	Common Rail
C4.4-AE86	86 bkW (115 BHP) @ 1500 RPM	Turbocharged Aftercooled (TA)	Common Rail
C4.4-AE108	108 bkW (145 BHP) @ 1500 RPM	Turbocharged Aftercooled (TA)	Common Rail
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General Engine Specifications of Caterpillar C4.4-AE108 Marine Auxiliary Engine
Basic Engine Specifications	I-4, 4-Stroke-Cycle-Diesel	Governor	ECU
Displacement	4.40 L (268.5 in³)	Fuel System Type	Common Rail
Rated Engine Speed	1500 RPM	Length	856 mm (33.7 in)
Height	1245 mm (49 in)	Width	814 mm(32.0 in)
Aspiration	Turbocharged-Aftercooled	Weight, Net Dry (Approx)	579 kg (1278 lb)
Bore	105 mm (4.13 in)	Stroke	127 mm (5.0 in)
Rotation (From Flywheel End)	Counterclockwise	Rated Speed	108 bkW (145 BHP) @ 1500 RPM
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Cooling System of Caterpillar C4.4-AE108 Marine Auxiliary Engine

HTC Cooling Water System (Engine Jacket Water)	Cooling Water Refill Capacity	21 L (10 gal)
	Coolant Medium	Cat Extended Life Coolant (ELC) or Equal
	Expansion Tank Pressure Cap	50 kPa (7.25 PSI)

LTC Cooling Water System (Aftercooler)	Heat Rejection to LTC Cooling Water System	5.0 kW
	Heat Rejection to LTC Cooling Water System	313 BTU/min
	Flow LTC Cooling Water Pump 2484130 – Max	124 L/min (32.7 gal/min)
	Flow LTC Cooling Water Pump 2484130 – Min	96 L/min (25.3 gal/min)
	Raw Water Pump Maximum Inlet Restriction	2.0 m (6.6 ft) H2O
	LTC Water Temperature Engine in (Max)	50.0 °C (209bkW)
	Expansion Tank Pressure Cap	50 kPa (7.25 PSI)
	Coolant Medium	Cat Extended Life Coolant (ELC) or Equal
	Connection Engine Inlet (138)	50.8 mm (2.0 in.) OD
	Connection Engine Outlet (139)	50.8 mm (2.0 in.) OD
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System of Caterpillar C4.4-AE108 Marine Auxiliary Engine
Air System	Combustion Air Inlet System
	Intake Combustion Air Flow	5.3 m³/min (71 bkW)
	Intake Combustion Air Flow	187 cfm (71 bkW)
	Intake Combustion Air Temperature Up to	50 °C (122 °F)
	Engine Room Ventilation Air
	Heat Rejection to Atmosphere	8.0 kW (71 bkW)
	Heat Rejection to Atmosphere	455 BTU/min (95 BHP)
Fuel System	Fuel Rate	237 g/bkW-hr (63.4 gal/hr)
	Fuel Rate	16.9 kg/hr (63.4 gal/hr)
	Fuel Flow Transfer Pump	4.1 L/min (71 bkW)
	Fuel Pressure Static Head	± 2.8 m (± 9.1 ft)
	Fuel Supply Line Restriction (Max)	10 kPa (2.9 in Hg) (1.45 PSI)
	Fuel Temperature Transfer Pump in (Max)	60 °C (140°F)
	Fuel Return Line Restriction (Max)	10 kPa (2.9 in Hg) (1.45 PSI)
	Fuel Supply / Return Connections	11 / 16 in O ring Face Seal (ORFS)
	Diesel Fuel Grade	ISO-F-DMX/ISO-F-DMA/ISO
Exhaust System	Exhaust Gas Flow (Total)	6.60 kg/min
	Exhaust Stack Temperature	455 °C
	Exhaust Stack Temperature	851 °F
	Engine Exhaust Connection	63 mm (2.5 in) ID, 6 x 9 mm (0.35 in) Holes on 88.9 mm (3.5 in) PCD
	Max Allowable System Backpressure	15 kPa (60 in H2O)
Lube System	Sump Type	Isolated
	Sump Capacity (Max)	11 L (5.55 gal)
	Sump Capacity (Min)	9 L (4.62 gal)
	Oil Change Interval	500 Hr
	Max Installation Angle (Any Direction)	25 Degrees
	Max Continuous Operation Angle (Any Direction)	25 Degrees
	Max Intermittent Operation Angle (Any Direction)	CI-4 10W30 or 15W40
Starting System	Electrical Starting Motor	24 VDC, 12 VDC
Starting System	Cold Starting	800 CCA [at -15 °C (5 °F) Ambient Temperature]
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Standard of Caterpillar C4.4-AE108 Marine Auxiliary Engine
Fuel System	1. Fuel Transfer Pump	Exhuast System	1. Exhuast Manifold
	2. High-Pressure Fuel Pump		2. Turbocharger
	3. Fuel Filter		3. Exhuast Elbow

Air Intake System	1. Air Intake Manifold	Starting System	1. Starter Motor
	2. N/A		2. Starter Rely

Cooling System	1. Water Pump	Power Output System	1. Flywheel
	2. Engine Fan		2. Standard Flywheel Housing
	3. Standard Radiator		3. N/A

Lubricating System	1. Oil Pump	Charging System	1. Charging Alternator
	2. Oil Filter		2. N/A

Engine Shut-Down System	1. Engine Fuel Shut-Off Solenoidr	Engine Mounting System	1. Engine Mouting Bracket

Engine Auiliary Accessories	1. Air Compressor
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Optional Accessories of Caterpillar C4.4-AE108 Marine Auxiliary Engine
Air Intake System	1. Air Intake Pre-Heater	Exhuast System	1. Muffler & Bellows
	2. Air Intake Shut-Off Valve		2. Flame Trap
	3. Air Filter		3. Spark Arrestor Type Muffler & Bellows
	4. Air Intake Pre-Filter		4. Dpf System
	5. Air Filter Alarm System		5. N/A

Fuel System	1. Coarse Filter	Lubricating System	1. Oil Pre-Heater
	2. Fuel Pre-Heater		2. N/A

Starting System	1. Manual Magnetic DC Contactor	Cooling System	1. Silent Type Radiator
	2. Dual Ears Flywheel Housing		2. Plateau Radiator
	3. Spring Starter Motor		3. Salt-Spray Resistant Radiator
	4. Air Starter Motor		4. Coolant Pre-Heater
	5. Hydraulic Starter Motor		5. Jacket Water Heater
	6. Manual Magnetic DC Contactor		6. N/A

Engine Auiliary Accessories	1. Hydraulic Oil Pump	Control System	1. Can Add Engine Monitoring System, Contro System with Wiring Harness.
	2. Air Conditioner Compressor		2. Can Add Self-Protection System That Integrated with Alarm System.

Power Output System	1. Clutch	Engine Mounting System	1. Shock Absorber Pad

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Modifiable Components of Caterpillar C4.4-AE108 Marine Auxiliary Engine
Air Intake System	1. Installation Position of Air Filter	Charging System	1. 12 V Charging Alternator for 12 V Electric System
	2. Upgrade to Heavy-Duty Type Air Fitler		2. Explosion-Proof Charging Alternator
	3. N/A		3. Upgrading to Specified Brand and Speicifications of Charging Alternator

Exhuast System	1. Water-Cooled Exhuast Manifold	Lubricating System	1. Oil Pan Position
	2. Water-Cooled Turbocharger		2. Number of Dipstick
	3. Can Modify Installation Position and Direction of Turbocharger		3. Position of Dipstick Can Choose From 6 Positions
	4. N/A		4. Can Modify Oil Filter to Be Remote Installation

Engine Shut-Down System	1. 12 V Solenoid for 12 V Electric System	Starting System	1. Upgrading to Specified Brand and Speicifications of Starter Motor
	2. Explosion-Proof Solenoid		2. 12 V Starter Motor for 12 V Electric System

Fuel System	1. Upgrade to Fuel Fitler That Integrated with Fuel Transfer Pump and Fuel Pre-Hearter	Engine Auiliary Accessories	1. All of Auxiliary System Can Choose Specified Brands and Specifications
	2. N/A		2. Additional Auxiliary Systems Can Be Added for Special Applications

Cooling System	1. Can Modify Engine Fan Into Blower Fan or Suction Fan	Power Output System	1. Can Modify Size of Flywheel Housing and Flywheel
	2. Can Modify Central Position of Engine Cooling Fan		2. Dual-Ear Flywheel Housing (for Twin-Starter System)
	3. Can Choose Type of Engine Fan From Mechanical Type or Electric Type		3. Some of Models Can Modify Flywheel Housing Into PTO Integrated Type
	4. N/A		4. Engine Have Connecting Port of PTOs, That Able to Provide Power Output

Engine Mounting System	1. Can Modify Engine Mouting Bracket
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