Caterpillar C-Series Marine Engine Parts
Alfa Marine Spare Parts supplies Caterpillar C-Series marine engine parts for commercial vessels, workboats, fishing vessels, yachts, auxiliary engines and marine power applications.
The Caterpillar C-designated engine range covers compact auxiliary engines through large high-output commercial marine engines. Alfa Marine Spare Parts supports requirements for individual replacement parts, scheduled maintenance, engine repairs and major overhaul projects.
We can assist with fuel injectors, fuel pumps, turbochargers, sea water pumps, cooling-system components, oil pumps, cylinder heads, pistons, bearings, gaskets, seals, sensors, electrical components and applicable overhaul parts.
For correct identification, send the engine model, serial number, arrangement number and existing part number whenever available.
Caterpillar C-Series Engine Models
Browse the Caterpillar C-Series engines below to find model-specific engine information and spare-parts support.
Caterpillar C4.4
The Caterpillar C4.4 is a compact engine platform used in marine auxiliary, generator and applicable propulsion installations.
Parts requirements can include fuel-system components, cooling parts, filters, sensors, electrical components, gaskets and maintenance parts.
Caterpillar C4.4 Marine Engine Parts
Caterpillar C7
The Caterpillar C7 is an electronically controlled six-cylinder diesel engine used in a range of marine applications.
C7 parts requirements can include injectors, fuel-system components, turbocharger parts, cooling components, sensors, electrical parts and engine repair components.
Caterpillar C7 Marine Engine Parts
Caterpillar C7.1
The Caterpillar C7.1 is used for marine propulsion, auxiliary power and generator applications.
We support enquiries for C7.1 fuel, cooling, turbocharging, electrical and maintenance components.
Caterpillar C7.1 Marine Engine Parts
Caterpillar C9
The Caterpillar C9 is a six-cylinder engine platform used in commercial vessels, workboats, yachts and other marine installations.
C9 requirements can include HEUI fuel-system parts, injectors, pumps, turbochargers, cooling components, sensors, gaskets and internal engine parts.
Caterpillar C9 Marine Engine Parts
Caterpillar C9.3
The Caterpillar C9.3 is used for marine propulsion, auxiliary and generator applications.
Correct component selection should be based on the specific C9.3 configuration and engine identification information.
Caterpillar C9.3 Marine Engine Parts
Caterpillar C12
The Caterpillar C12 is a six-cylinder diesel engine used in commercial and recreational marine applications.
We support C12 enquiries covering fuel-system components, turbochargers, cooling parts, lubrication components, electrical parts and engine overhaul requirements.
Caterpillar C12 Marine Engine Parts
Caterpillar C12.9
The Caterpillar C12.9 is another C-designated engine platform used in marine applications.
For C12.9 parts enquiries, provide the engine serial information and existing component number whenever possible.
Caterpillar C12.9 Marine Engine Parts
Caterpillar C15
The Caterpillar C15 is a heavy-duty six-cylinder engine used for commercial marine propulsion and other demanding vessel applications.
C15 parts requirements can include fuel injectors, turbochargers, sea water pumps, cooling-system components, oil-system parts, sensors, electronic components, gaskets and overhaul parts.
Caterpillar C15 Marine Engine Parts
Caterpillar C18
The Caterpillar C18 is widely used for commercial marine propulsion, yacht applications and marine power installations.
We support enquiries for C18 injectors, fuel-system components, turbochargers, sea water pumps, cooling components, sensors, cylinder components and overhaul parts.
Caterpillar C18 Marine Engine Parts
Caterpillar C27
The Caterpillar C27 is a larger C-designated engine platform used in demanding applications.
Parts identification should be completed against the exact engine serial and arrangement information, particularly for fuel, cooling, turbocharging and internal engine components.
Caterpillar C27 Marine Engine Parts
Caterpillar C30
The Caterpillar C30 is a high-output engine platform used in applicable marine installations.
For C30 requirements, Alfa Marine Spare Parts can assist with identification using the engine serial number, arrangement information and existing part number.
Caterpillar C30 Marine Engine Parts
Caterpillar C32
The Caterpillar C32 is one of the best-known large Caterpillar marine engines and is used in commercial vessels, yachts and other high-output applications.
C32 enquiries can include injectors, turbochargers, sea water pumps, cooling components, sensors, electronic controls, cylinder components, gaskets and overhaul parts.
Caterpillar C32 Marine Engine Parts
Caterpillar C32B
The Caterpillar C32B represents a later development of the C32 platform for demanding marine applications.
Correct C32B component identification should be based on the complete engine configuration and serial information.
Caterpillar C32B Marine Engine Parts
Caterpillar C280
The Caterpillar C280 is a large-displacement four-stroke engine family used for demanding commercial propulsion, auxiliary and marine power-generation applications.
The C280 family includes:
- Caterpillar C280-6
- Caterpillar C280-8
- Caterpillar C280-12
- Caterpillar C280-16
C280 requirements can include fuel injectors, cylinder heads, pistons, cylinder liners, connecting rods, bearings, turbocharger components, cooling pumps, auxiliary sea water pumps, oil-system components, electronic controls, gaskets, seals and major overhaul parts.
Caterpillar C280 Marine Engine Parts
Caterpillar C-Series Parts
Alfa Marine Spare Parts supports C-Series requirements ranging from individual service components to major engine overhaul parts.
Common requirements include:
- Fuel injectors
- Fuel pumps and transfer pumps
- Fuel-system components
- Turbochargers
- Turbocharger cartridges
- Sea water pumps
- Jacket-water pumps
- Oil pumps
- Heat exchangers
- Oil coolers
- Aftercooler components
- Cylinder heads
- Pistons and piston rings
- Cylinder liners
- Connecting rods
- Main and connecting-rod bearings
- Crankshaft components
- Camshaft components
- Valves and valve-train parts
- Gaskets and seals
- Sensors and switches
- Electronic control components
- Wiring harnesses
- Starter motors
- Alternators
- Filters
- Maintenance kits
- Engine overhaul parts
Caterpillar C-Series Fuel System Parts
Fuel-system configurations vary significantly across the C-Series range.
Depending on the engine, requirements can include fuel injectors, fuel pumps, transfer pumps, fuel lines, pressure-control components, filters, injector seals and electronic fuel-system components.
For accurate identification, provide:
Engine model + serial number + existing part number
Do not assume that a fuel-system component used on one C-Series model is suitable for another.
Cooling & Sea Water System Parts
Marine cooling systems are particularly important when identifying replacement components.
We can assist with enquiries for:
- Sea water pumps
- Auxiliary sea water pumps
- Jacket-water pumps
- Heat exchangers
- Aftercooler components
- Oil coolers
- Thermostats
- Cooling pipes
- Mechanical seals
- Gaskets and O-rings
When requesting a pump, send the existing pump number and clear photographs whenever possible.
Turbochargers & Air System Parts
C-Series turbocharger requirements can include:
- Complete turbochargers
- Turbocharger cartridges
- Bearings and seals
- Intake components
- Charge-air components
- Exhaust connections
- Oil-feed and return components
- Gaskets and mounting hardware
Turbocharger configurations can differ according to engine model, rating and production revision.
Always provide the existing turbocharger identification number when available.
Engine Overhaul Parts
For C-Series repair and overhaul projects, Alfa Marine Spare Parts can assist with applicable:
- Cylinder heads
- Pistons
- Piston rings
- Cylinder liners
- Connecting rods
- Bearings
- Crankshaft components
- Camshaft components
- Intake and exhaust valves
- Gaskets
- O-rings
- Shaft seals
- Fuel-system components
- Cooling-system parts
- Lubrication components
For major engine components, serial-number verification is strongly recommended before ordering.
Electrical, Sensors & Control Components
C-Series electronic and electrical requirements can include:
- Engine control modules
- Pressure sensors
- Temperature sensors
- Speed sensors
- Wiring harnesses
- Switches
- Connectors
- Starter motors
- Alternators
- Monitoring components
Electronic components can be configuration-specific, so the number shown on the existing component should be provided whenever possible.
How to Find the Correct Caterpillar C-Series Part
Searching by engine model is a good starting point, but the engine model alone may not be sufficient for final parts identification.
When requesting a quotation, send:
- Engine model
- Engine serial number
- Serial-number prefix, when applicable
- Arrangement number
- Existing part number
- Part description
- Quantity required
- Photographs if the number is unknown
- Delivery destination
For pumps, turbochargers, injectors and electronic components, photographs of identification plates and existing numbers can be particularly useful.
Genuine, OEM, Replacement & Remanufactured Parts
Depending on the component and availability, Alfa Marine Spare Parts can assist with genuine, OEM, replacement and applicable remanufactured parts.
Availability and suitable options vary by engine and component.
When an original number has been superseded, provide the old part number together with the engine information so the appropriate replacement can be identified.
Caterpillar Marine Engine Applications
Caterpillar C-designated engines are used across a wide range of marine applications, including:
- Commercial vessels
- Workboats
- Fishing vessels
- Passenger vessels
- Ferries
- Tugboats
- Offshore support vessels
- Government vessels
- Yachts
- Marine auxiliary engines
- Generator installations
- Diesel-electric applications
The exact application depends on engine model, configuration and rating.
Other Caterpillar Marine Engine Families
Looking for a Caterpillar engine outside the C-designated range?
Visit our Caterpillar Marine Engine Parts & Rebuild Kits page for additional Caterpillar engine families including 3116, 3126, 3208, 3304, 3306, 3400, 3412, 3500, 3512, 3516 and 3600 Series engines.
You can also browse all Caterpillar engine pages.
Frequently Asked QuestionsWhich Caterpillar C-Series engines do you support?
Alfa Marine Spare Parts supports enquiries for C4.4, C7, C7.1, C9, C9.3, C12, C12.9, C15, C18, C27, C30, C32, C32B and C280 engine families, subject to correct identification and availability.
Which engines are included in the Caterpillar C280 family?
The C280 family includes the C280-6, C280-8, C280-12 and C280-16.
How do I identify the correct Caterpillar engine part?
Provide the engine model, serial number, arrangement number and existing part number whenever available. Clear photographs can also help when a part number cannot be identified.
Can you help if I do not know the part number?
Yes. Send the engine identification information together with photographs of the required component and any visible identification numbers.
Do you supply Caterpillar C-Series overhaul parts?
We can assist with applicable pistons, liners, cylinder heads, bearings, valves, gaskets, seals and other engine overhaul components.
Can you supply remanufactured components?
Applicable remanufactured options may be available for certain components. Availability depends on the engine model and individual part number.
Do you ship Caterpillar C-Series parts internationally?
Yes. Alfa Marine Spare Parts supports spare-parts enquiries and international delivery requirements for commercial marine and yacht customers worldwide.
Request Caterpillar C-Series Marine Engine Parts
Looking for Caterpillar C-Series marine engine parts?
We can assist with requirements for:
C4.4 | C7 | C7.1 | C9 | C9.3 | C12 | C12.9 | C15 | C18 | C27 | C30 | C32 | C32B | C280-6 | C280-8 | C280-12 | C280-16
Send us:
- Engine model
- Engine serial number
- Arrangement number
- Part number
- Part description
- Quantity
- Photographs when required
- Delivery destination
If you do not know the part number, send clear photographs of the existing component and engine identification information.
Alfa Marine Spare Parts can assist with identifying the required component and preparing a quotation for your vessel, maintenance requirement or engine overhaul project.