Caterpillar 3412E Marine Engine Parts & Spares
Alfa Marine Spare Parts supplies Caterpillar 3412E 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 3412E parts, subject to availability, for scheduled maintenance, engine repairs, top-end overhaul and complete engine rebuild requirements.
Our sourcing capabilities cover fuel injectors, fuel-system 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, sensors, electronic controls, starters, alternators, gaskets, seals and overhaul parts.
The 3412E 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 3412E part? Request a Quote or email request@alfamarinespareparts.com.
Caterpillar 3412E Engine Overview
The Caterpillar 3412E is a twelve-cylinder V-configuration, four-stroke diesel engine within Caterpillar's long-established 3400 Series.
Caterpillar continues to maintain a dedicated parts catalogue for the 3412E Marine Engine, including serial-number-based parts identification.
The wider 3412 platform includes:
- Caterpillar 3412
- Caterpillar 3412C
- Caterpillar 3412E
The 3412E should be treated as a separate engine generation when identifying replacement components.
Individual 3412E engines can differ according to:
- Engine serial number
- Serial-number prefix
- Arrangement number
- Engine rating
- Fuel-system configuration
- Electronic control 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 family, visit our Caterpillar 3400 Series Marine Engine Parts page.
Caterpillar 3412E Technical OverviewSpecificationCaterpillar 3412EManufacturerCaterpillarEngine model3412EEngine familyCaterpillar 3400 SeriesEngine type4-stroke dieselCylinder configurationV12Number of cylinders12Displacement classApprox. 27 LAspirationTurbocharged / aftercooled on applicable configurationsFuel systemElectronically controlled, configuration dependentCooling arrangementApplication dependentApplicationsMarine propulsion, auxiliary and generatorParts identificationSerial number and arrangement dependent
Exact output, operating speed, emissions configuration and installed components can vary according to the individual 3412E engine and application.
Major components should therefore be identified using the engine serial number, arrangement number and existing part number.
Caterpillar 3412E Parts & Spares
Alfa Marine Spare Parts can assist with a broad range of Caterpillar 3412E engine parts for routine maintenance, corrective repairs and major overhaul requirements.
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-engine components should always be verified against the complete engine identification.
You can also browse our Marine Spare Parts Catalogue.
Caterpillar 3412E 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 or top-end overhaul requirements, provide the engine serial number and existing part numbers whenever available.
Caterpillar 3412E Pistons & Cylinder Liners
For 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 3412E model designation alone.
Caterpillar 3412E Fuel System Parts
The Caterpillar 3412E generation uses electronically controlled fuel-system technology on applicable configurations.
Fuel-system requirements can include:
- Fuel injectors
- Electronic injectors
- Injector seals
- Fuel transfer pumps
- Fuel priming pumps
- Fuel filters
- Fuel lines
- Fuel pressure components
- Fuel-system sensors
- Wiring and connectors
- Fuel-system gaskets
- Related electronic-control components
Fuel-system parts should be verified against the engine serial number and existing component number before ordering.
Caterpillar 3412E Fuel Injectors
Fuel injectors are a common maintenance and overhaul requirement for Caterpillar 3412E engines.
For accurate identification, provide:
Engine model: Caterpillar 3412E
Engine serial number:
Serial-number prefix:
Arrangement number:
Existing injector number:
Quantity:
Existing injector numbers are particularly useful when an engine has received previous fuel-system repairs or updated components.
Caterpillar 3412E Electronic Control Parts
Because the 3412E uses electronic engine management on applicable configurations, requirements can also include:
- Electronic control modules
- Engine sensors
- Pressure sensors
- Temperature sensors
- Speed sensors
- Wiring harnesses
- Connectors
- Electronic injector components
- Control-system related parts
Electronic parts can vary considerably according to engine arrangement and production revision.
Always provide the complete engine serial number and existing electronic component number whenever possible.
Caterpillar 3412E Turbocharger Parts
Applicable Caterpillar 3412E 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 specifications 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 Caterpillar 3412 or 3412C is suitable for a 3412E.
Caterpillar 3412E 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 arrangement should be verified against the individual engine and vessel installation.
Caterpillar 3412E Cooling System Parts
Marine cooling-system requirements can include:
- Jacket-water pumps
- Sea water pumps
- Raw-water pumps
- Heat exchangers
- Aftercooler components
- Oil coolers
- Thermostats
- Cooling pipes
- Hoses
- Pump shafts
- Mechanical seals
- Bearings
- Gaskets
- O-rings
Cooling-system configurations can vary according to engine arrangement and vessel installation.
For pumps, heat exchangers and other major cooling parts, provide the engine serial number and existing part number whenever available.
Caterpillar 3412E 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 3412E marine engine uses the same sea water pump.
Caterpillar 3412E Heat Exchanger Parts
Applicable heat-exchanger-cooled marine installations can require:
- Heat exchanger assemblies
- Heat exchanger cores
- End covers
- Gaskets
- O-rings
- Seals
- Cooling connections
- Mounting components
The correct heat exchanger should be identified against the individual engine configuration and vessel installation.
Caterpillar 3412E Oil Pump & Lubrication Parts
Lubrication-system requirements can include:
- Engine oil pumps
- Oil filters
- Oil coolers
- Oil-pressure regulators
- Oil lines
- Oil-pressure sensors
- Crankshaft seals
- Gaskets
- O-rings
Correct lubrication-system component identification is important for reliable operation of the crankshaft, bearings, pistons, camshaft and turbocharger.
Caterpillar 3412E 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 enquiries, provide:
Engine Serial Number + Arrangement Number + Existing Crankshaft NumberCaterpillar 3412E Camshaft & Timing Parts
Timing-system requirements can include:
- Camshafts
- Camshaft bearings
- Camshaft gears
- Timing gears
- Gear-train components
- Covers
- Bushings
- Fasteners
- Gaskets
- Seals
Timing-system parts should be checked against the complete engine arrangement before ordering.
Caterpillar 3412E 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 configuration can vary according to engine rating and vessel installation.
Caterpillar 3412E Starter & Alternator Parts
Electrical requirements can include:
- Starter motors
- Starter solenoids
- Alternators
- Charging-system components
- Sensors
- Switches
- Wiring
- Connectors
- Electrical harnesses
Before ordering electrical components, verify:
- Engine serial number
- Existing part number
- System voltage
- Mounting arrangement
- Electrical connections
Caterpillar 3412E 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
- Injector seals
- O-rings
Complete gasket requirements can also be supplied as part of an applicable overhaul requirement.
Caterpillar 3412E Overhaul Parts
For a complete Caterpillar 3412E 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
- Electronic injectors
- 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 3412E 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 and inspection results.
Caterpillar 3412E Reman Parts
Applicable Caterpillar Reman components may be available for selected 3412E requirements.
Depending on the individual engine configuration and part number, Reman options can include selected:
- Fuel-system components
- Turbochargers
- Starters
- Alternators
- Short blocks
- Long blocks
- Major engine components
Availability and compatibility should always be confirmed against:
3412E + Engine Serial Number + Arrangement Number + Existing Part NumberCaterpillar 3412E Marine Applications
Caterpillar maintains a dedicated 3412E Marine Engine parts catalogue, confirming the model's marine application.
Applicable installations 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 3412E vs 3412
The Caterpillar 3412E belongs to the wider 3412 V12 engine platform.
Although the original 3412 and the 3412E share the wider family designation, they represent different engine generations.
Differences can affect:
- Fuel-system architecture
- Electronic controls
- Injectors
- Turbochargers
- Cylinder components
- Cooling-system parts
- Electrical components
- Internal-engine parts
For the wider platform, visit our Caterpillar 3412 Marine Engine Parts page.
Caterpillar 3412E vs 3412C
The Caterpillar 3412C and 3412E are separate generations within the 3412 V12 platform.
The 3412E introduces electronic engine-management and fuel-system differences that make correct model identification particularly important.
Parts should therefore not automatically be considered interchangeable between the two generations.
Always verify the:
- Complete engine model
- Engine serial number
- Serial-number prefix
- Arrangement number
- Existing part number
before ordering.
Caterpillar 3412E vs 3408C
Both engines belong to the wider Caterpillar 3400 Series, but their cylinder configurations differ:
Caterpillar 3408C — V8
Caterpillar 3412E — V12
For V8 engine requirements, visit our Caterpillar 3408 Marine Engine Parts page.
Caterpillar 3412E Within the 3400 SeriesEngineConfigurationCaterpillar 3406Inline 6Caterpillar 3406BInline 6Caterpillar 3406CInline 6Caterpillar 3408V8Caterpillar 3408BV8Caterpillar 3408CV8Caterpillar 3412V12Caterpillar 3412CV12Caterpillar 3412EV12
For information about the complete platform, visit our Caterpillar 3400 Series Marine Engine Parts page.
Caterpillar 3412E Parts Identification
Correct parts identification is especially important for Caterpillar 3412E engines because fuel-system, electronic-control and other components can differ according to serial-number range and arrangement.
When requesting parts, provide:
Engine model: Caterpillar 3412E
Engine serial number:
Serial-number prefix:
Arrangement number:
Existing part number:
Part description:
Quantity:
For turbochargers, pumps, injectors, electronic modules, starters and alternators, clear photographs of the existing component can also help with identification.
Caterpillar's current 3412E Marine Engine catalogue also uses serial-number identification to determine correct fitment.
The preferred identification sequence is:
Caterpillar 3412E + Engine Serial Number + Arrangement Number + Existing Part NumberWhy Source Caterpillar 3412E 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 3412E parts and spares.
Depending on availability, we can assist with:
- Scheduled maintenance parts
- Fuel-system parts
- Electronic injectors
- Engine-control components
- Cylinder parts
- 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 V12 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 3412E a V12 Engine?
Yes. The Caterpillar 3412E belongs to the twelve-cylinder V-engine branch of the Caterpillar 3400 Series.
Is the Caterpillar 3412E a Marine Engine?
Yes. Caterpillar currently maintains a dedicated 3412E Marine Engine parts catalogue and equipment dashboard.
What Is the Caterpillar 3412E Displacement?
The 3412E belongs to the approximately 27-litre displacement class of the 3412 platform.
Is the Caterpillar 3412E Part of the 3400 Series?
Yes. The 3412E belongs to the wider Caterpillar 3400 engine family.
Visit our Caterpillar 3400 Series Marine Engine Parts page for the complete family.
Are Caterpillar 3412C and 3412E Parts the Same?
Not necessarily.
The 3412C and 3412E represent different engine generations, and fuel-system, electronic-control and other components can differ.
Can You Supply Caterpillar 3412E Fuel Injectors?
Yes. We can assist with applicable injectors and related fuel-system components, subject to correct engine identification and availability.
Can You Supply Caterpillar 3412E Electronic Parts?
Yes. Applicable engine-control modules, sensors, wiring harnesses, connectors and related electronic components can be sourced subject to correct identification and availability.
Can You Supply Caterpillar 3412E Turbochargers?
Yes. We can assist with applicable genuine, OEM, replacement and Reman turbocharger requirements, subject to availability.
Can You Supply Caterpillar 3412E Sea Water Pumps?
Yes. We can assist with applicable sea water pumps and associated cooling-system components.
Provide the engine serial number and existing pump number whenever available.
Can You Supply Caterpillar 3412E Overhaul Parts?
Yes. Depending on availability, we can assist with pistons, liners, rings, bearings, cylinder-head parts, injectors, 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 3412E Marine Engine Parts
Looking for Caterpillar 3412E marine engine parts, maintenance spares or overhaul components?
Send us:
Engine model: Caterpillar 3412E
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 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 3412E parts for commercial vessels, workboats, fishing vessels, shipyards, marine repair companies and engine rebuilders.