Caterpillar C4.4 Marine Auxiliary Engine Parts
Alfa Marine Spare Parts supplies Caterpillar C4.4 marine auxiliary engine parts for generator sets, commercial vessels, workboats, fishing vessels, yachts and other marine auxiliary applications.
We can assist with C4.4 cooling-system parts, fuel-system components, turbochargers, filters, sensors, electrical components, gaskets, seals and applicable engine overhaul parts.
For accurate identification, send the engine serial number, arrangement information and existing part number whenever available.
Caterpillar C4.4 Marine Auxiliary Engine
The Caterpillar C4.4 is a compact inline four-cylinder, four-stroke diesel engine with a displacement of approximately 4.4 litres.
In marine installations, the C4.4 is commonly used to provide auxiliary power for onboard systems and generator applications.
Depending on the installation, a C4.4 may support:
- Marine generator sets
- Electrical power generation
- Hydraulic systems
- Pumps
- Deck machinery
- Emergency or standby equipment
- Other onboard auxiliary systems
Different C4.4 ratings and configurations can use different components, so replacement parts should be checked against the specific engine identification information.
Caterpillar C4.4 Technical Specifications
Typical C4.4 specifications include:
- Manufacturer: Caterpillar
- Engine model: C4.4
- Configuration: Inline four-cylinder
- Cycle: Four-stroke diesel
- Displacement: 4.4 litres
- Bore: 105 mm
- Stroke: 127 mm
- Rated speed: Configuration dependent
- Control: Electronic on applicable versions
- Cooling: Heat-exchanger or keel-cooling arrangements depending on installation
Exact specifications, ratings and installed components can vary by engine arrangement and application.
Always verify the engine serial number and arrangement information before selecting replacement components.
Caterpillar C4.4 Spare Parts
Alfa Marine Spare Parts can assist with individual replacement parts as well as components required for scheduled maintenance and engine repair.
C4.4 requirements can include:
- Fuel injectors
- Fuel pumps
- Fuel filters
- Turbochargers
- Sea water pumps
- Coolant pumps
- Heat exchangers
- Oil coolers
- Oil pumps
- Sensors
- Electronic components
- Starter motors
- Alternators
- Gaskets
- O-rings
- Seals
- Cylinder-head components
- Pistons and rings
- Bearings
- Maintenance parts
- Overhaul components
Caterpillar C4.4 Cooling System Parts
Marine auxiliary engines depend on an effective cooling system, particularly during continuous generator operation.
C4.4 cooling-system requirements can include:
- Sea water pumps
- Raw-water pumps
- Sea water pump impellers
- Pump repair components
- Pump shafts
- Mechanical seals
- Engine coolant pumps
- Heat exchangers
- Heat-exchanger components
- Oil coolers
- Aftercooler components
- Thermostats
- Temperature regulators
- Cooling hoses
- Gaskets
- O-rings and seals
Cooling-system configuration can vary between heat-exchanger and keel-cooled installations.
When requesting a C4.4 water pump or cooling component, provide the existing part number and engine serial number whenever possible.
Caterpillar C4.4 Fuel System Parts
Fuel-system components can vary according to the C4.4 engine generation and configuration.
Available enquiries can include:
- Fuel injectors
- Injector seals
- Fuel pumps
- Fuel transfer pumps
- Fuel priming pumps
- Fuel filters
- Fuel-filter housings
- Fuel lines
- Fuel-pressure components
- Fuel-system sensors
- Electronic fuel-system components
The correct injector or fuel-system component should be identified using the engine serial information and existing part number rather than by engine model alone.
Caterpillar C4.4 Turbocharger & Air System Parts
Depending on the engine rating and configuration, C4.4 air-system requirements can include:
- Complete turbochargers
- Turbocharger cartridges
- Turbocharger-related components
- Turbocharger oil lines
- Air-filter elements
- Intake components
- Exhaust manifolds
- Aftercooler components
- Intake hoses
- Exhaust gaskets
- Exhaust connections
If a turbocharger requires replacement, send the identification information from the existing unit together with the engine serial number.
Caterpillar C4.4 Lubrication System Parts
We can assist with C4.4 lubrication-system components including:
- Oil pumps
- Oil filters
- Oil coolers
- Oil-pressure sensors
- Oil lines
- Oil seals
- O-rings
- Gaskets
Correct lubrication-system components should be checked against the specific engine arrangement.
Caterpillar C4.4 Electrical & Electronic Parts
Electronic C4.4 configurations use sensors and control components to monitor and manage engine operation.
Requirements can include:
- Engine control modules
- Pressure sensors
- Temperature sensors
- Speed sensors
- Wiring harnesses
- Switches
- Connectors
- Starter motors
- Alternators
- Relays
- Monitoring components
Electronic parts can be highly configuration-specific. Provide the number from the existing component whenever available.
Caterpillar C4.4 Internal Engine & Overhaul Parts
For C4.4 engine repairs and overhaul requirements, Alfa Marine Spare Parts can assist with applicable components including:
- Cylinder heads
- Cylinder-head components
- Pistons
- Piston rings
- Connecting rods
- Main bearings
- Connecting-rod bearings
- Crankshaft components
- Camshaft components
- Intake valves
- Exhaust valves
- Valve-train components
- Gasket sets
- Oil seals
- O-rings
For major internal engine components, serial-number verification is recommended before ordering.
Caterpillar C4.4 Generator & Auxiliary Applications
The C4.4 is used in marine auxiliary installations where dependable onboard electrical or mechanical power is required.
Applications can include:
- Commercial vessels
- Workboats
- Fishing vessels
- Passenger vessels
- Offshore vessels
- Survey vessels
- Yachts
- Marine generator sets
- Emergency generators
- Auxiliary pump installations
The exact engine configuration depends on the vessel, required load, cooling arrangement, electrical system and operating requirements.
How to Identify the Correct Caterpillar C4.4 Part
C4.4 alone is not always enough to identify the correct replacement component.
When requesting a quotation, provide:
- Engine model
- Engine serial number
- Arrangement number, if available
- Existing part number
- Part description
- Quantity required
- Clear photographs when the number is unknown
- Delivery destination
For pumps, injectors, turbochargers and electronic components, photographs of the existing component and identification numbers can be particularly useful.
If an older Caterpillar part number has been replaced or superseded, send us the original number so the replacement can be checked.
Genuine, OEM, Replacement & Remanufactured C4.4 Parts
Depending on the individual component and availability, Alfa Marine Spare Parts can assist with enquiries for genuine, OEM, replacement and applicable remanufactured C4.4 parts.
Not every option is available for every component. We therefore recommend checking availability against the exact part number and engine information.
Related Caterpillar C-Series Engines
The C4.4 forms part of the wider Caterpillar C-designated engine range.
For larger engine models, visit:
- Caterpillar C7 Marine Engine Parts
- Caterpillar C7.1 Marine Engine Parts
- Caterpillar C9 Marine Engine Parts
- Caterpillar C9.3 Marine Engine Parts
- Caterpillar C12 Marine Engine Parts
- Caterpillar C15 Marine Engine Parts
- Caterpillar C18 Marine Engine Parts
- Caterpillar C32 Marine Engine Parts
- Caterpillar C280 Marine Engine Parts
You can also visit our Caterpillar Marine Engine Parts & Rebuild Kits page to browse additional Caterpillar engine families.
Once the new Caterpillar C-Series Marine Engine Parts hub is published, add a link to that page here as well.
Frequently Asked QuestionsWhat parts are available for Caterpillar C4.4 marine auxiliary engines?
C4.4 requirements can include fuel-system components, injectors, pumps, cooling parts, turbochargers, filters, sensors, electrical components, gaskets, seals and applicable overhaul parts.
How do I find the correct Caterpillar C4.4 part number?
The best method is to use the engine serial number, arrangement information and existing component number. Send photographs when the original part number cannot be identified.
Can you identify a C4.4 part from a photograph?
In many cases, photographs combined with the engine serial information can assist with identification. Include clear images of the component and any visible numbers or identification plates.
Do you supply Caterpillar C4.4 sea water pumps?
We can assist with enquiries for applicable C4.4 sea water pumps, raw-water pumps, impellers, pump components and cooling-system parts. The exact pump should be verified against the engine configuration.
Are Caterpillar C4.4 overhaul parts available?
We can assist with applicable cylinder-head components, pistons, rings, bearings, gaskets, seals and other engine repair components, subject to identification and availability.
Do you ship Caterpillar C4.4 parts internationally?
Yes. Alfa Marine Spare Parts supports C4.4 spare-parts enquiries for commercial marine and yacht customers worldwide.
Request Caterpillar C4.4 Marine Engine Parts
Looking for a Caterpillar C4.4 injector, fuel pump, sea water pump, turbocharger, sensor, filter, gasket or overhaul component?
Send Alfa Marine Spare Parts:
- Engine serial number
- Arrangement number, when available
- Required part number
- Quantity
- Photograph if identification is required
- Delivery destination
If you do not know the part number, send clear photographs of the existing component together with the engine identification information.
Alfa Marine Spare Parts can assist with identifying the required C4.4 component and preparing a quotation for your vessel, generator or auxiliary-engine repair.