Caterpillar 3412C Marine Engine Parts & Spares
Alfa Marine Spare Parts supplies Caterpillar 3412C marine engine parts and spares for commercial vessels, workboats, fishing vessels, tugboats, propulsion systems, auxiliary installations and marine generator applications.
We source genuine, OEM, replacement and applicable Reman Caterpillar 3412C parts, subject to availability, for scheduled maintenance, engine repairs, top-end overhaul and complete engine rebuild requirements.
Our sourcing capabilities cover fuel injectors, fuel injection parts, cylinder heads, pistons, piston rings, cylinder liners, connecting rods, bearings, crankshaft parts, camshaft parts, turbochargers, aftercooler parts, jacket-water pumps, sea water pumps, heat exchanger parts, oil pumps, oil coolers, starters, alternators, gaskets, seals and overhaul parts.
The 3412C belongs to the wider Caterpillar 3400 Series Marine Engine Parts family.
For the wider twelve-cylinder platform, visit our Caterpillar 3412 Marine Engine Parts page.
For correct parts identification, provide the complete engine model, engine serial number, serial-number prefix, arrangement number and existing part number whenever available.
Need a specific Caterpillar 3412C part? Request a Quote or email request@alfamarinespareparts.com.
Caterpillar 3412C Engine Overview
The Caterpillar 3412C is a V12 four-stroke diesel engine within Caterpillar's established 3400 Series.
The engine uses a 137.2 mm cylinder bore and 152.4 mm piston stroke, producing a displacement of approximately 27 litres.
The wider 3412 platform includes several generations, including:
- Caterpillar 3412
- Caterpillar 3412C
- Caterpillar 3412E
The 3412C should be treated as its own engine generation when identifying replacement components.
Individual engines can differ according to:
- Engine serial number
- Serial-number prefix
- Arrangement number
- Engine rating
- Fuel-system configuration
- Turbocharger arrangement
- Cooling system
- Electrical equipment
- Vessel installation
- Production revision
For this reason, 3412, 3412C and 3412E parts should not automatically be treated as interchangeable.
For information about the complete engine family, visit our Caterpillar 3400 Series Marine Engine Parts page.
Caterpillar 3412C Technical SpecificationsSpecificationCaterpillar 3412CManufacturerCaterpillarEngine model3412CEngine familyCaterpillar 3400 SeriesEngine type4-stroke dieselCylinder configurationV12Number of cylinders12Cylinder bore137.2 mmPiston stroke152.4 mmDisplacementApprox. 27.0 LCoolingWater-cooledAspirationTurbocharged / aftercooled on applicable configurationsFuel systemConfiguration dependentApplicationsMarine, auxiliary and generator applicationsParts identificationSerial number and arrangement dependent
Exact power ratings, operating speeds, fuel-system equipment and installed components can vary according to the individual engine configuration and application.
Caterpillar 3412C Parts & Spares
Alfa Marine Spare Parts can assist with a broad range of Caterpillar 3412C engine parts for routine service, corrective maintenance and major engine overhaul.
Cylinder & Internal Engine Parts
Requirements can include:
- Cylinder heads
- Cylinder liners
- Pistons
- Piston rings
- Piston pins
- Connecting rods
- Connecting-rod bushings
- Main bearings
- Connecting-rod bearings
- Thrust bearings
- Crankshaft parts
- Camshaft parts
- Timing components
- Gaskets
- O-rings
- Seals
Major internal components should always be checked against the complete engine identification.
You can also browse our Marine Spare Parts Catalogue.
Caterpillar 3412C Cylinder Head Parts
Cylinder-head requirements can include:
- Complete cylinder heads
- Intake valves
- Exhaust valves
- Valve guides
- Valve seats
- Valve springs
- Rocker components
- Injector-related parts
- Cylinder-head gaskets
- O-rings
- Seals
- Fasteners
For cylinder-head repairs and top-end overhaul requirements, provide the engine serial number and existing part numbers whenever available.
Caterpillar 3412C Pistons & Cylinder Liners
For Caterpillar 3412C engine repair and overhaul work, we can assist with applicable:
- Pistons
- Piston rings
- Piston pins
- Cylinder liners
- Liner seals
- Connecting rods
- Connecting-rod bearings
- Main bearings
- Thrust parts
- Gaskets
- O-rings
Pistons, liners and bearings should be selected according to the individual engine configuration rather than the general model designation alone.
Caterpillar 3412C Fuel System Parts
Fuel-system requirements can include:
- Fuel injectors
- Fuel nozzles
- Fuel injection components
- Injection-pump parts
- Fuel transfer pumps
- Fuel priming pumps
- Fuel filters
- Governor components
- Fuel lines
- Injector seals
- Fuel-system gaskets
- Fittings
Fuel-system components can differ according to the engine arrangement and production revision.
Whenever possible, provide the existing injector, nozzle or fuel-system part number.
Caterpillar 3412C Fuel Injectors & Nozzles
For Caterpillar 3412C injector or nozzle requirements, provide:
Engine model: Caterpillar 3412C
Engine serial number:
Serial-number prefix:
Arrangement number:
Existing injector/nozzle number:
Quantity:
Existing part numbers are particularly useful when the engine has previously received fuel-system repairs or updated components.
Caterpillar 3412C Turbocharger Parts
Applicable Caterpillar 3412C configurations use turbocharging and aftercooling.
Turbocharger requirements can include:
- Complete turbochargers
- Applicable Reman turbochargers
- Turbocharger cartridges
- Turbine components
- Compressor components
- Bearings
- Seals
- Oil-feed parts
- Oil-return parts
- Intake connections
- Exhaust connections
- Mounting gaskets
Turbocharger specification can vary according to engine rating and arrangement.
For correct identification, provide:
Engine Serial Number + Existing Turbocharger Number
Do not assume a turbocharger fitted to a 3412 or 3412E is automatically suitable for a 3412C.
Caterpillar 3412C Aftercooler Parts
Aftercooler requirements can include:
- Aftercooler cores
- Aftercooler housings
- End covers
- Gaskets
- O-rings
- Seals
- Air connections
- Cooling connections
- Mounting components
The exact aftercooler configuration should be verified against the individual engine and installation.
Caterpillar 3412C Cooling System Parts
Marine cooling-system requirements can include:
- Jacket-water pumps
- Sea water pumps
- Raw-water pumps
- Heat exchangers
- Aftercooler parts
- Oil coolers
- Thermostats
- Cooling pipes
- Hoses
- Pump shafts
- Mechanical seals
- Bearings
- Gaskets
- O-rings
Cooling arrangements can vary according to the engine configuration and vessel installation.
For pumps, heat exchangers and other major cooling-system parts, provide the engine serial number and existing part number whenever available.
Caterpillar 3412C Sea Water Pump Parts
For applicable marine installations, Alfa Marine Spare Parts can assist with:
- Complete sea water pumps
- Raw-water pumps
- Pump shafts
- Mechanical seals
- Bearings
- Pump covers
- Pump housings
- Gaskets
- O-rings
- Repair components
Sea water pump selection can depend on:
- Engine serial number
- Arrangement number
- Cooling configuration
- Existing pump number
- Connection arrangement
- Vessel installation
Do not assume every Caterpillar 3412C marine engine uses the same sea water pump.
Caterpillar 3412C Heat Exchanger Parts
Applicable marine cooling installations can require:
- Heat exchanger assemblies
- Heat exchanger cores
- End covers
- Gaskets
- O-rings
- Seals
- Cooling connections
- Mounting components
The exact heat exchanger arrangement should be confirmed against the individual engine and vessel installation.
Caterpillar 3412C Oil Pump & Lubrication Parts
Lubrication-system requirements can include:
- Engine oil pumps
- Oil filters
- Oil coolers
- Oil-pressure regulators
- Oil lines
- Oil-pressure switches
- Crankshaft seals
- Gaskets
- O-rings
Correct lubrication-system component identification is important for protecting the crankshaft, bearings, pistons, camshaft and turbocharger.
Caterpillar 3412C Crankshaft & Bearing Parts
Crankshaft and bearing requirements can include:
- Complete crankshaft
- Main bearings
- Connecting-rod bearings
- Thrust bearings
- Connecting rods
- Connecting-rod bushings
- Crankshaft seals
- Crankshaft gears
- Vibration-damper parts
- Associated hardware
For crankshaft requirements, provide:
Engine Serial Number + Arrangement Number + Existing Crankshaft NumberCaterpillar 3412C Camshaft & Timing Parts
Timing-system requirements can include:
- Camshafts
- Camshaft bearings
- Camshaft gears
- Timing gears
- Gear-train components
- Covers
- Bushings
- Fasteners
- Gaskets
- Seals
Timing components should be identified against the complete engine arrangement before ordering.
Caterpillar 3412C Air Intake & Exhaust Parts
Air-intake and exhaust requirements can include:
- Intake manifolds
- Exhaust manifolds
- Turbocharger connections
- Aftercooler components
- Air-intake pipes
- Exhaust connections
- Gaskets
- Seals
- Clamps
- Mounting hardware
The exact arrangement can vary according to engine configuration and installation.
Caterpillar 3412C Starter & Alternator Parts
Electrical requirements can include:
- Starter motors
- Starter solenoids
- Alternators
- Charging-system components
- Temperature switches
- Pressure switches
- Sensors
- Gauges
- Wiring
- Connectors
Before ordering electrical components, verify:
- Engine serial number
- Existing part number
- System voltage
- Mounting arrangement
- Electrical connections
Caterpillar 3412C Gaskets & Seals
Gasket and sealing requirements can include:
- Cylinder-head gaskets
- Rocker-cover gaskets
- Intake-manifold gaskets
- Exhaust-manifold gaskets
- Turbocharger gaskets
- Oil-pan gaskets
- Water-pump gaskets
- Crankshaft seals
- Oil seals
- Liner seals
- O-rings
Complete gasket requirements can also be prepared together with associated overhaul components.
Caterpillar 3412C Overhaul Parts
For a complete Caterpillar 3412C engine overhaul, Alfa Marine Spare Parts can assist with applicable:
- Cylinder liners
- Pistons
- Piston rings
- Piston pins
- Cylinder heads
- Intake valves
- Exhaust valves
- Connecting rods
- Main bearings
- Connecting-rod bearings
- Thrust bearings
- Crankshaft parts
- Camshaft parts
- Fuel-system components
- Turbocharger parts
- Cooling-system parts
- Oil pumps
- Oil cooler parts
- Gaskets
- O-rings
- Seals
For major overhaul requirements, send the complete engine identification together with the required parts list.
Caterpillar 3412C Top-End Overhaul Parts
Top-end overhaul requirements can include:
- Cylinder heads
- Intake valves
- Exhaust valves
- Valve guides
- Valve seats
- Valve springs
- Rocker components
- Fuel injectors
- Injector seals
- Cylinder-head gaskets
- O-rings
- Seals
The final overhaul scope should be determined according to engine condition, operating history and inspection results.
Caterpillar 3412C Reman Parts
Applicable Caterpillar Reman components may be available for selected 3412C requirements.
Depending on the individual engine and part number, Reman options can apply to selected:
- Turbochargers
- Fuel-system components
- Starters
- Alternators
- Major engine components
Availability and compatibility should always be confirmed against:
3412C + Engine Serial Number + Arrangement Number + Existing Part NumberCaterpillar 3412C Marine Applications
Applicable Caterpillar 3412C engines can be found in heavy-duty marine and power applications.
These can include:
- Commercial vessels
- Fishing vessels
- Workboats
- Tugboats
- Utility vessels
- Marine propulsion
- Auxiliary installations
- Marine generator applications
Individual installations can differ according to engine rating, duty cycle, cooling arrangement and vessel configuration.
Caterpillar 3412C vs 3412
The Caterpillar 3412C belongs to the wider 3412 V12 engine platform.
Although the 3412 and 3412C share the same wider engine family, they represent different generations.
Differences can affect:
- Fuel-system components
- Turbochargers
- Cylinder parts
- Cooling-system parts
- Pumps
- Electrical components
- Internal-engine parts
For the wider platform, visit our Caterpillar 3412 Marine Engine Parts page.
Caterpillar 3412C vs 3412E
The Caterpillar 3412C and Caterpillar 3412E are separate generations of the wider 3412 platform.
Parts should not automatically be treated as interchangeable.
Fuel-system architecture, electronic controls and other engine components can differ significantly between engine generations.
Always verify the complete engine designation, serial number, arrangement number and existing part number before ordering.
Caterpillar 3412C vs 3408C
Both engines belong to the Caterpillar 3400 Series, but their cylinder configurations differ:
Caterpillar 3408C — V8
Caterpillar 3412C — V12
For V8 engine requirements, visit our Caterpillar 3408 Marine Engine Parts page.
Caterpillar 3412C Within the 3400 SeriesEngineConfigurationCaterpillar 3406Inline 6Caterpillar 3406BInline 6Caterpillar 3406CInline 6Caterpillar 3408V8Caterpillar 3408BV8Caterpillar 3408CV8Caterpillar 3412V12Caterpillar 3412CV12Caterpillar 3412EV12
For the complete family overview, visit our Caterpillar 3400 Series Marine Engine Parts page.
Caterpillar 3412C Parts Identification
Correct parts identification is particularly important for the Caterpillar 3412C because individual configurations can differ by serial-number range, arrangement and application.
When requesting parts, provide:
Engine model: Caterpillar 3412C
Engine serial number:
Serial-number prefix:
Arrangement number:
Existing part number:
Part description:
Quantity:
For turbochargers, pumps, starters, alternators and other externally mounted components, clear photographs of the existing unit can also help with identification.
The preferred identification sequence is:
Caterpillar 3412C + Engine Serial Number + Arrangement Number + Existing Part NumberWhy Source Caterpillar 3412C Parts From Alfa Marine Spare Parts?
Alfa Marine Spare Parts supports shipowners, ship managers, shipyards, marine engineers, purchasing departments, repair companies and engine rebuilders with Caterpillar 3412C parts and spares.
Depending on availability, we can assist with:
- Scheduled maintenance parts
- Fuel-system parts
- Cylinder components
- Internal-engine parts
- Turbocharger parts
- Aftercooler parts
- Cooling-system parts
- Sea water pumps
- Heat exchanger parts
- Lubrication-system parts
- Electrical components
- Top-end overhaul parts
- Complete overhaul requirements
- Genuine parts
- OEM parts
- Replacement parts
- Applicable Reman parts
For the complete family, visit our Caterpillar 3400 Series Marine Engine Parts page.
For the wider twelve-cylinder platform, visit our Caterpillar 3412 Marine Engine Parts page.
You can also browse our Caterpillar Marine Engine Parts & Rebuild Kits, Caterpillar Engine Parts Catalogue and Marine Spare Parts Catalogue.
Alfa Marine Spare Parts is an independent marine spare-parts supplier and is not an official Caterpillar dealer.
Frequently Asked QuestionsIs the Caterpillar 3412C a V12 Engine?
Yes. The Caterpillar 3412C uses a 12-cylinder V configuration.
What Is the Caterpillar 3412C Displacement?
The Caterpillar 3412C has a displacement of approximately 27.0 litres.
What Are the Caterpillar 3412C Bore and Stroke?
The engine uses a 137.2 mm bore and 152.4 mm stroke.
Is the Caterpillar 3412C Part of the 3400 Series?
Yes. The 3412C belongs to the wider Caterpillar 3400 Series.
Visit our Caterpillar 3400 Series Marine Engine Parts page for the complete family.
Are Caterpillar 3412 and 3412C Parts the Same?
Not necessarily.
Individual parts should be verified using the exact engine model, serial number, arrangement number and existing part number.
Are Caterpillar 3412C and 3412E Parts Interchangeable?
Not automatically.
The two generations can differ in fuel-system architecture, controls and other engine components.
Can You Supply Caterpillar 3412C Fuel Injectors?
Yes. We can assist with applicable injectors, nozzles and fuel-system components, subject to correct identification and availability.
Can You Supply Caterpillar 3412C Turbochargers?
Yes. We can assist with applicable genuine, OEM, replacement and Reman turbocharger requirements, subject to availability.
Can You Supply Caterpillar 3412C Sea Water Pumps?
Yes. We can assist with applicable sea water pumps and related repair components.
Provide the engine serial number and existing pump number for identification.
Can You Supply Caterpillar 3412C Overhaul Parts?
Yes. Depending on availability, we can assist with pistons, liners, rings, bearings, cylinder-head parts, fuel-system components, turbocharger parts, pumps, gaskets, seals and other overhaul requirements.
Related Caterpillar Engine Pages
Caterpillar 3400 Series Marine Engine Parts
Caterpillar 3412 Marine Engine Parts
Caterpillar 3408 Marine Engine Parts
Caterpillar 3406 Marine Engine Parts
Caterpillar 3512 Marine Engine Parts
Caterpillar 3516 Marine Engine Parts
Caterpillar C18 Marine Engine Parts
Caterpillar C32 Marine Engine Parts
Caterpillar Marine Engine Parts & Rebuild Kits
Caterpillar Engine Parts Catalogue
Request Caterpillar 3412C Marine Engine Parts
Looking for Caterpillar 3412C marine engine parts, maintenance spares or overhaul components?
Send us:
Engine model: Caterpillar 3412C
Engine serial number:
Serial-number prefix:
Arrangement number:
Existing part number:
Part description:
Quantity:
Required condition: Genuine / OEM / Replacement / Reman where applicable
Delivery destination:
Required date:
If the part number is unknown, include clear photographs of the engine identification plate and existing component.
Email: request@alfamarinespareparts.com
For the complete engine family, visit our Caterpillar 3400 Series Marine Engine Parts page.
For the wider V12 platform, visit our Caterpillar 3412 Marine Engine Parts page.
You can also browse our Caterpillar Marine Engine Parts & Rebuild Kits.
Worldwide supply of Caterpillar 3412C parts for commercial vessels, workboats, fishing vessels, shipyards, marine repair companies and engine rebuilders.