Doosan Marine Engines & Spare Parts
Alfa Marine Spare Parts supplies genuine, OEM-quality, and selected aftermarket Doosan marine engine spare parts for commercial fishing vessels, tugboats, passenger ferries, workboats, pilot boats, patrol craft, offshore-support vessels, yachts, cargo vessels, dredgers, and marine generator installations.
We support vessel owners, shipyards, fleet operators, marine workshops, engine rebuilders, and generator specialists with Doosan engine components for routine servicing, emergency repairs, and complete engine overhauls.
Our product range includes:
- Doosan fuel injectors
- Fuel-injection pumps
- Turbochargers
- Freshwater pumps
- Seawater pumps
- Oil pumps
- Pistons and cylinder liners
- Cylinder heads
- Main and connecting-rod bearings
- Engine filters
- Gasket sets
- Electrical components
- Complete Doosan overhaul kits
Doosan, Daewoo and HD Construction Equipment Engines
Many marine engines known worldwide as Daewoo or Doosan Infracore engines are now supported within the wider HD Hyundai organization.
HD Hyundai Infracore and HD Hyundai Construction Equipment merged on January 1, 2026, forming HD Construction Equipment. The current official engine website continues to publish a dedicated marine propulsion and auxiliary-engine range.
- Doosan marine engines
- Daewoo marine engines
- Doosan Infracore marine parts
- Daewoo Doosan engine parts
- HD Construction Equipment marine engines
- Doosan diesel engine spare parts
These search terms may refer to engines from the same historical engine business but manufactured or marketed during different periods.
Doosan Marine Engine Range
The current official marine propulsion range includes inline six-cylinder and V-type engines for heavy-duty, medium-duty, and light-duty vessel applications.
Published models include:
- L136
- L136T
- L136TI
- L086TI
- 4L066C
- MD196T
- MD196TI
- 4L086C
- L126TI
- 4L126TI
- 4L126C
- V158TI
- 4V158TI
- 4V158C
- V222TI
Depending on the engine model and rating, the official range extends from approximately 118 kW to 736 kW, with inline six-cylinder, V8, and V12 configurations.
Doosan Marine Duty Ratings
Doosan marine engines have historically been offered under different operating-duty classifications.
Heavy-Duty Marine Engines
Heavy-duty ratings are intended for vessels operating long hours under sustained loads.
Typical applications include:
- Fishing trawlers
- Tugboats
- Push boats
- Cargo boats
- Freighters
- Ferries
- Commercial workboats
Historical Doosan marine documentation describes heavy-duty service as suitable for unrestricted yearly and daily operating hours, subject to the specified load profile and installation requirements.
Medium-Duty Marine Engines
Medium-duty engines are commonly used in vessels that operate regularly but do not remain at maximum load continuously.
Typical applications include:
- Pilot boats
- Passenger boats
- Escort vessels
- Ferries
- Fishing boats
- Cruising vessels
- Harbour craft
Light-Duty Marine Engines
Light-duty ratings are intended for lower annual operating hours and applications where maximum output is used only for limited periods.
Typical applications include:
- Fast leisure boats
- Yachts
- Cruising vessels
- Lightweight fishing boats
- Fire-pump installations
- Recreational craft
The engine duty rating must match the vessel’s actual annual operating hours, average load, gearbox ratio, and percentage of time operated at full power.
Doosan L136 Marine Engines
The Doosan L136 family is an inline six-cylinder, 8.1-litre marine engine platform.
Common models include:
- Doosan L136
- Doosan L136T
- Doosan L136TL
- Doosan L136TI
The current official specifications list:
- L136: 118 kW at 2,200 rpm
- L136T: 147 kW at 2,200 rpm
- L136TI: 169 kW at 2,200 rpm
The L136 and L136T are listed to IMO Tier I specifications, while the L136TI is listed to IMO Tier II.
Typical applications include:
- Fishing vessels
- Passenger boats
- Workboats
- Harbour vessels
- Small ferries
- Marine generator sets
Frequently requested parts include:
- Fuel injectors
- Fuel-injection pumps
- Water pumps
- Oil pumps
- Turbochargers
- Thermostats
- Exhaust manifolds
- Pistons and rings
- Main bearings
- Connecting-rod bearings
- Cylinder-head gaskets
- Complete overhaul kits
Popular SEO searches:
- Doosan L136 marine parts
- Daewoo L136 spare parts
- Doosan L136 water pump
- Doosan L136 fuel injector
- Doosan L136 overhaul kit
- Doosan L136TI turbocharger
Doosan L086TI Marine Engines
The Doosan L086TI is an inline six-cylinder marine diesel engine.
Official specifications list:
- Six-cylinder inline configuration
- 8.1-litre displacement
- Approximately 210–265 kW
- Rated speeds from approximately 2,100 to 2,500 rpm
- IMO Tier II emissions specification
Common ratings and model references include:
- Doosan L086TIH
- Doosan L086TIM
- Doosan L086TIL
Typical applications include:
- Passenger vessels
- Fishing boats
- Pilot boats
- Patrol vessels
- Fast workboats
- Cruising vessels
- Commercial launches
Popular replacement parts include:
- Fuel injectors
- Injection pumps
- Turbochargers
- Charge-air cooler components
- Freshwater pumps
- Seawater pumps
- Oil coolers
- Exhaust-manifold parts
- Pistons
- Cylinder liners
- Complete gasket sets
- Overhaul kits
Popular SEO searches:
- Doosan L086TI marine parts
- Doosan L086TI injector
- Doosan L086TI water pump
- Doosan L086TI turbocharger
- Doosan L086TI overhaul kit
Doosan 4L066C Marine Engines
The 4L066C is an inline six-cylinder, 5.9-litre marine engine.
The official range lists approximately:
- 184–221 kW
- 1,800–2,300 rpm
- IMO Tier II or Tier III configurations
- EPA Tier 3 configurations
Typical applications include:
- Fishing vessels
- Pilot boats
- Patrol craft
- Passenger boats
- Workboats
- Marine generator sets
Common replacement categories include:
- Common-rail injectors
- High-pressure fuel pumps
- Fuel-pressure sensors
- Turbochargers
- Water pumps
- Oil pumps
- Electronic control components
- Cooling-system components
- Gasket kits
- Overhaul parts
Popular SEO searches:
- Doosan 4L066C parts
- Doosan 4L066C marine injector
- Doosan 4L066C fuel pump
- Doosan 4L066C turbocharger
- Doosan 4L066C overhaul kit
Doosan MD196 Marine Engines
The Doosan MD196 is an 11.1-litre inline six-cylinder marine-engine family.
Common models include:
- Doosan MD196T
- Doosan MD196TI
Official ratings include:
- MD196T: approximately 206 kW at 2,000 rpm
- MD196TI: approximately 235 kW at 2,000 rpm
The MD196T is listed to IMO Tier I, while the MD196TI is listed to IMO Tier II.
Typical applications include:
- Commercial fishing vessels
- Tugboats
- Passenger ferries
- Workboats
- Cargo vessels
- Marine generators
- Harbour craft
Frequently requested parts include:
- Injectors
- Fuel-injection pumps
- Turbochargers
- Freshwater pumps
- Seawater pumps
- Oil pumps
- Pistons and liners
- Cylinder heads
- Bearings
- Gasket sets
- Complete overhaul kits
Popular SEO searches:
- Doosan MD196T marine parts
- Doosan MD196TI spare parts
- Doosan MD196 injector
- Doosan MD196 water pump
- Doosan MD196 turbocharger
- Doosan MD196 overhaul kit
Doosan L126TI Marine Engines
The L126TI is one of the best-known Doosan commercial marine engines.
The official current specification lists:
- Inline six-cylinder configuration
- 11.1-litre displacement
- Approximately 265–294 kW
- Rated speeds from 2,000 to 2,100 rpm
- IMO Tier II emissions specification
Common models include:
- Doosan L126TIH
- Doosan L126TIM
Typical applications include:
- Fishing trawlers
- Tugboats
- Passenger vessels
- Ferries
- Workboats
- Pilot boats
- Cargo vessels
- Marine generator sets
High-demand parts include:
- Fuel injectors
- Injector nozzles
- Fuel-injection pumps
- Turbochargers
- Water pumps
- Oil pumps
- Oil coolers
- Heat exchangers
- Pistons and liners
- Cylinder heads
- Bearing sets
- Complete overhaul kits
Popular SEO searches:
- Doosan L126TI marine parts
- Doosan L126TI injector
- Doosan L126TI fuel pump
- Doosan L126TI water pump
- Doosan L126TI turbocharger
- Doosan L126TI overhaul kit
Doosan 4L126TI and 4L126C Marine Engines
The 4L126 family is a more powerful version of the 11.1-litre inline six-cylinder platform.
Doosan 4L126TI
Published specifications include:
- Approximately 294–401 kW
- Rated speeds from 1,800 to 2,200 rpm
- IMO Tier II emissions specification
Common ratings include:
- 4L126TIH
- 4L126TIM
- 4L126TIL
Doosan 4L126C
Published specifications include:
- Approximately 331–405 kW
- Rated speeds from 1,800 to 2,100 rpm
- IMO Tier II or III configurations
- EPA Tier 3 configurations
Typical applications include:
- Commercial fishing vessels
- Passenger ferries
- Pilot boats
- Patrol vessels
- Tugboats
- Offshore-support craft
- Fast commercial boats
Frequently requested parts include:
- Common-rail injectors
- High-pressure fuel pumps
- Turbochargers
- Electronic sensors
- Engine control modules
- Water pumps
- Oil pumps
- Charge-air coolers
- Pistons and liners
- Complete overhaul kits
Popular SEO searches:
- Doosan 4L126TI marine parts
- Doosan 4L126C engine parts
- Doosan 4L126 injector
- Doosan 4L126 fuel pump
- Doosan 4L126 turbocharger
- Doosan 4L126 overhaul kit
Doosan V158TI Marine Engines
The V158TI is a V8 marine-engine family designed for larger and higher-powered vessels.
The official specifications list:
- V8 configuration
- 14.6-litre displacement
- Approximately 353–500 kW
- Rated speeds from 1,800 to 2,300 rpm
- IMO Tier II specification
Common ratings include:
- Doosan V158TIH
- Doosan V158TIM
- Doosan V158TIL
Typical applications include:
- Large fishing vessels
- Passenger ferries
- Tugboats
- Patrol craft
- Offshore-service vessels
- Fast commercial vessels
- Motor yachts
Popular replacement parts include:
- Fuel injectors
- Injection pumps
- Turbochargers
- Charge-air coolers
- Freshwater pumps
- Seawater pumps
- Oil pumps
- Cylinder heads
- Pistons and liners
- Main bearings
- Connecting-rod bearings
- Complete overhaul kits
Popular SEO searches:
- Doosan V158TI marine parts
- Doosan V158TI injector
- Doosan V158TI turbocharger
- Doosan V158TI water pump
- Doosan V158TI overhaul kit
Doosan 4V158TI and 4V158C Marine Engines
Doosan 4V158TI
The 4V158TI is a V8, 14.6-litre marine diesel engine with a published output of approximately 390 kW at 1,800 rpm.
Doosan 4V158C
The current official specification lists:
- V8 configuration
- 15.1-litre displacement
- Approximately 449–640 kW
- Rated speeds from 1,800 to 2,300 rpm
- IMO Tier II or III configurations
- EPA Tier 3 configurations
Typical applications include:
- Tugboats
- Fast passenger ferries
- Patrol craft
- Offshore-support vessels
- Commercial fishing boats
- Large yachts
- Pilot vessels
Common spare parts include:
- Common-rail injectors
- High-pressure pumps
- Turbochargers
- Charge-air coolers
- Electronic sensors
- Engine control components
- Water pumps
- Oil pumps
- Cylinder-head components
- Complete overhaul kits
Doosan V222TI Marine Engines
The V222TI is one of the largest engines in the published Doosan-derived marine propulsion range.
Official specifications include:
- V12 configuration
- 21.9-litre displacement
- Approximately 530–736 kW
- Rated speeds from 1,800 to 2,300 rpm
- IMO Tier II emissions specification
Common ratings include:
- Doosan V222TIH
- Doosan V222TIM
- Doosan V222TIL
Typical applications include:
- Tugboats
- Large fishing vessels
- Fast passenger ferries
- Patrol vessels
- Offshore-support vessels
- Commercial workboats
- Large yachts
Frequently requested parts include:
- Fuel injectors
- Fuel-injection pumps
- Turbochargers
- Intercooler components
- Freshwater pumps
- Seawater pumps
- Oil pumps
- Cylinder heads
- Pistons and cylinder liners
- Main and connecting-rod bearings
- Complete overhaul kits
Popular SEO searches:
- Doosan V222TI marine parts
- Doosan V222TI injector
- Doosan V222TI fuel pump
- Doosan V222TI turbocharger
- Doosan V222TI water pump
- Doosan V222TI overhaul kit
Older Daewoo and Doosan Engine Families
Many older Daewoo and Doosan engines remain installed in commercial vessels, buses, generators, industrial machinery, and marinized power packages.
Legacy engine families include:
- Daewoo D0846
- Daewoo D1146
- Daewoo D2366
- Daewoo D2848
- Daewoo D2840
- Daewoo D2842
- Daewoo DB33
- Daewoo DB58
- Daewoo DE08
- Daewoo DE12
- Doosan DE08T
- Doosan DE08TI
- Doosan DE08TIS
- Doosan DE12
- Doosan DE12T
- Doosan DE12TI
- Doosan DE12TIS
- Doosan DV10
- Doosan DV11
- Doosan DV15
Historical Doosan documentation records earlier MAN-licensed D28 engines, Daewoo DE and DV engine families, and the development of marine engines dating back to the late 1950s.
These engines are important SEO targets because operators often require:
- Fuel injectors
- Injector nozzles
- Injection pumps
- Turbochargers
- Water pumps
- Oil pumps
- Cylinder heads
- Pistons
- Cylinder liners
- Bearings
- Gasket sets
- Overhaul kits
Doosan Marine Auxiliary and Generator Engines
Doosan engines are also used as auxiliary or generator-drive engines aboard commercial and recreational vessels.
Typical applications include:
- Main shipboard generators
- Emergency generator sets
- Fishing-vessel generators
- Tugboat auxiliary generators
- Passenger-vessel electrical systems
- Harbour generator sets
- Offshore power packages
- Hydraulic power units
- Deck machinery
- Fire-pump systems
- Refrigeration equipment
- Dredging machinery
Common generator and auxiliary engine families include:
- Doosan D24
- Doosan D34
- Doosan D58
- Doosan D1146
- Doosan P086TI
- Doosan P126TI
- Doosan P126TI-II
- Doosan P158LE
- Doosan P180LE
- Doosan P222LE
- Doosan DP086
- Doosan DP126
- Doosan DP158
- Doosan DP180
- Doosan DP222
Exact suitability and parts compatibility must be verified using the generator model, engine serial number, output rating, frequency, cooling arrangement, and equipment manufacturer.
Doosan Marine Spare Parts Categories
Routine Maintenance Parts
- Engine oil filters
- Primary fuel filters
- Secondary fuel filters
- Air filters
- Fuel-water separators
- Crankcase breathers
- V-belts
- Multi-rib belts
- Thermostats
- Zinc anodes
- Service kits
- Hose kits
- O-ring kits
Fuel-System Parts
- Fuel injectors
- Injector nozzles
- Injector holders
- Injector sleeves
- Injector seals
- Mechanical fuel-injection pumps
- High-pressure common-rail pumps
- Fuel lift pumps
- Fuel-transfer pumps
- Fuel rails
- Fuel-pressure regulators
- Fuel-pressure sensors
- Fuel lines
- Stop solenoids
Cooling-System Parts
- Raw-water pumps
- Seawater pumps
- Freshwater circulation pumps
- Water-pump repair kits
- Impellers
- Thermostats
- Thermostat housings
- Heat exchangers
- Expansion tanks
- Oil coolers
- Charge-air coolers
- Intercoolers
- Coolant pipes
- End caps
- Seals and O-rings
Engine Overhaul Parts
- Complete overhaul kits
- In-frame overhaul kits
- Pistons
- Piston pins
- Piston-ring sets
- Cylinder liners
- Liner seals
- Connecting rods
- Connecting-rod bushes
- Crankshafts
- Camshafts
- Main bearings
- Connecting-rod bearings
- Thrust bearings
- Tappets
- Timing gears
- Complete gasket sets
Cylinder-Head and Valve Parts
- Complete cylinder heads
- Bare cylinder heads
- Cylinder-head gaskets
- Intake valves
- Exhaust valves
- Valve guides
- Valve seats
- Valve springs
- Rocker arms
- Rocker shafts
- Pushrods
- Injector sleeves
- Valve-cover gaskets
Turbocharger and Air-System Parts
- Complete turbochargers
- Turbocharger cartridges
- Turbo repair kits
- Compressor wheels
- Turbine wheels
- Wastegate actuators
- Intake manifolds
- Exhaust manifolds
- Air filters
- Charge-air coolers
- Turbocharger oil pipes
- Turbo mounting gaskets
Lubrication-System Parts
- Engine oil pumps
- Oil filters
- Oil-filter housings
- Oil coolers
- Oil-pressure regulators
- Oil-pressure switches
- Oil-pressure sensors
- Oil pans
- Dipsticks
- Lubrication pipes
- Front and rear crankshaft seals
Electrical and Electronic Parts
- Starter motors
- Alternators
- Electronic control units
- Engine control modules
- Wiring harnesses
- Instrument panels
- Marine displays
- Temperature sensors
- Oil-pressure sensors
- Fuel-pressure sensors
- Speed sensors
- Crankshaft sensors
- Camshaft sensors
- Solenoids
- Relays
Exhaust-System Parts
- Exhaust manifolds
- Wet exhaust elbows
- Dry exhaust elbows
- Exhaust risers
- Flexible exhaust connections
- Exhaust gaskets
- Mounting studs
- Exhaust-temperature sensors
- Exhaust clamps
- Silencers
Marine Transmission and Mounting Parts
- Engine mounts
- Flexible couplings
- Damper plates
- Flywheels
- Flywheel housings
- Bell housings
- Gearbox adapter plates
- Transmission oil coolers
- Control cables
- Mounting brackets
Fast-Moving Doosan Marine Parts
Frequently requested Doosan and Daewoo marine products include:
- Doosan oil filters
- Doosan fuel filters
- Doosan air filters
- Doosan fuel injectors
- Doosan injector nozzles
- Doosan injection pumps
- Doosan seawater pumps
- Doosan freshwater pumps
- Doosan thermostats
- Doosan belts
- Doosan turbochargers
- Doosan starter motors
- Doosan alternators
- Doosan cylinder-head gaskets
- Doosan piston-and-liner kits
- Doosan bearing sets
- Doosan complete gasket sets
- Doosan engine overhaul kits
Doosan Marine Engine Applications
Doosan marine diesel engines are commonly used in:
- Commercial fishing vessels
- Fishing trawlers
- Tugboats
- Push boats
- Passenger ferries
- Pilot boats
- Patrol vessels
- Escort vessels
- Cargo boats
- Freighters
- Workboats
- Fast commercial boats
- Harbour vessels
- Fireboats
- Offshore-support vessels
- Dredgers
- Motor yachts
- Marine generator sets
Major Shipyards and Maritime Regions We Supply
Alfa Marine Spare Parts ships Doosan marine engine components to customers operating near major shipyards, commercial ports, repair facilities, and marinas worldwide.
The company names below are included as geographical and industry references. Their inclusion does not imply that Alfa Marine Spare Parts is affiliated with, authorized by, or an official supplier to these organizations.
United States
Major American shipbuilding and repair facilities include:
- Huntington Ingalls Industries
- Newport News Shipbuilding
- Ingalls Shipbuilding
- General Dynamics NASSCO
- General Dynamics Bath Iron Works
- Fincantieri Marinette Marine
- Austal USA
- Bollinger Shipyards
- Eastern Shipbuilding Group
- Vigor Marine
- Conrad Shipyard
- Gulf Copper
- BAE Systems Jacksonville Ship Repair
- Hanwha Philly Shipyard
Important marine-service markets include:
- Florida
- Louisiana
- Texas
- California
- Washington
- Virginia
- Maine
- Massachusetts
- North Carolina
- South Carolina
United Kingdom
Major British shipyards and repair centres include:
- Navantia UK
- Cammell Laird
- A&P Falmouth
- A&P Tyne
- A&P Tees
- Babcock Rosyth
- Ferguson Marine
- BAE Systems Maritime
- Pendennis Shipyard
Important maritime regions include:
- Southampton
- Portsmouth
- Plymouth
- Falmouth
- Liverpool
- Newcastle
- Aberdeen
- Glasgow
- Belfast
Dubai and the United Arab Emirates
Major UAE shipyards and service facilities include:
- Drydocks World Dubai
- Dubai Maritime City
- Grandweld Shipyards
- Albwardy Damen
- Gulf Craft
- Al Seer Marine
- Premier Marine Engineering Services
Important UAE marine hubs include:
- Jebel Ali
- Port Rashid
- Dubai Harbour
- Abu Dhabi
- Sharjah
- Ras Al Khaimah
- Fujairah
Brazil
Major Brazilian shipbuilding and repair facilities include:
- Estaleiro Atlântico Sul
- BrasFELS
- Wilson Sons Shipyards
- Estaleiro Rio Grande
- Mauá Shipyard
- Enseada Shipyard
- INACE
- Marina Verolme
Important Brazilian maritime centres include:
- Rio de Janeiro
- Niterói
- Santos
- Itajaí
- Angra dos Reis
- Recife
- Salvador
- Fortaleza
South Korea
South Korea is an important engine-manufacturing and shipbuilding centre for Doosan-derived marine engines.
Major Korean shipbuilding groups include:
- HD Hyundai Heavy Industries
- HD Hyundai Mipo
- HD Hyundai Samho
- Hanwha Ocean
- Samsung Heavy Industries
- HJ Shipbuilding & Construction
HD Hyundai Heavy Industries states that its engine and machinery business produces large marine engines and proprietary HiMSEN propulsion and generator systems.
Important Korean maritime regions include:
- Busan
- Ulsan
- Incheon
- Geoje
- Mokpo
- Gunsan
Netherlands
Major Dutch shipyards include:
- Damen Shipyards
- Damen Shiprepair Rotterdam
- Royal IHC
- Royal Niestern Sander
- Holland Shipyards Group
- De Haas Shipyards
Important Dutch maritime centres include:
- Rotterdam
- Amsterdam
- IJmuiden
- Vlissingen
- Dordrecht
- Harlingen
- Den Helder
Germany
Major German shipyards include:
- Meyer Werft
- Lürssen
- German Naval Yards
- Fassmer
- Abeking & Rasmussen
- Blohm+Voss
France
Major French shipyards include:
- Chantiers de l’Atlantique
- Naval Group
- Piriou
- OCEA
- Chantier Naval de Marseille
- La Ciotat Shipyards
Italy
Major Italian shipyards and yacht-service centres include:
- Fincantieri
- Sanlorenzo
- Benetti
- Palumbo Superyachts
- CRN
- Rosetti Marino
- Lusben
Spain
Major Spanish shipyards include:
- Navantia
- Astilleros Armón
- Astilleros Gondán
- Freire Shipyard
- Aresa Shipyard
- Metalships & Docks
- MB92 Barcelona
Norway
Major Norwegian shipyards include:
- Vard
- Ulstein Verft
- Myklebust Verft
- Green Yard Kleven
- Larsnes Mek Verksted
Greece
Major Greek shipyards and repair regions include:
- Elefsis Shipyards
- ONEX Neorion Shipyards
- Chalkis Shipyards
- Perama repair zone
- Spanopoulos Group
Major Marinas and Commercial Marine Destinations
United States
- Lauderdale Marine Center
- Bahia Mar Yachting Center
- Rybovich Marina
- Newport Shipyard
- Derecktor Fort Pierce
- Safe Harbor marina network
- San Diego marine-service facilities
United Kingdom
- Ocean Village Marina
- Hamble Point Marina
- Port Solent Marina
- Premier Brighton Marina
- Queen Anne’s Battery
- Pendennis Marina
Dubai and the UAE
- Dubai Harbour
- Dubai Marina Yacht Club
- Port Rashid Marina
- Yas Marina
- Emirates Palace Marina
- Al Hamra Marina
Brazil
- Marina da Glória
- Marina Verolme
- Marina Itajaí
- BR Marinas
- Iate Clube de Santos
- Marina Piratas
Europe
- Marina Port Vell
- Port Adriano
- Puerto Banús
- Marina Ibiza
- Port Vauban
- Port de Saint-Tropez
- Marina Genova
- Porto Cervo Marina
- Flisvos Marina
- Alimos Marina
- ACI Marina Split
- ACI Marina Dubrovnik
- Porto Montenegro
- Marina Portorož
Latest Doosan and HD Engine Developments
New Corporate Identity
On January 1, 2026, HD Hyundai Construction Equipment and HD Hyundai Infracore completed their merger and launched HD Construction Equipment.
The new organization stated that engines and aftermarket services would remain important growth areas.
For existing customers, older Doosan, Daewoo, and Doosan Infracore engine names remain important when searching for spare parts, service manuals, and overhaul components.
Continued Marine Engine Business
HD Hyundai reported in July 2025 that its engine operation benefited from growth across generator, defense, and marine-engine sectors. It also reported improved sales of generator engines and environmentally focused ship engines.
Hydrogen-Engine Development
HD Hyundai Infracore has developed hydrogen internal-combustion engine technology, including the 11-litre HX12 and 22-litre HX22 platforms.
The company’s published roadmap included an 11-litre hydrogen engine for power-generation applications and continued development of higher-output hydrogen engines. These programmes are wider engine developments and should not automatically be presented as approved Doosan marine propulsion engines.
Current Marine Product Support
The official HD Construction Equipment engine website continues to list marine propulsion and auxiliary-engine categories, together with parts, service, and dealer support.
Worldwide Shipping for Doosan Marine Parts
Alfa Marine Spare Parts exports Doosan and Daewoo marine engine components to customers in:
- United States
- Canada
- United Kingdom
- Ireland
- Netherlands
- Belgium
- Germany
- France
- Spain
- Portugal
- Italy
- Greece
- Croatia
- Norway
- Denmark
- Poland
- Turkey
- United Arab Emirates
- Saudi Arabia
- Qatar
- Oman
- Brazil
- Guyana
- Suriname
- Caribbean
- South Korea
- Singapore
- Malaysia
- Indonesia
- Philippines
- Australia
- New Zealand
- South Africa
- Nigeria
- Ghana
- Angola
Why Choose Alfa Marine Spare Parts?
Customers choose Alfa Marine Spare Parts for:
- Genuine Doosan marine parts
- Genuine Daewoo engine parts
- OEM-quality replacement components
- Selected aftermarket alternatives
- Support for current and legacy engines
- Technical parts identification
- Assistance with superseded part numbers
- Worldwide export experience
- Competitive quotations
- Fast delivery to ports and shipyards
- Parts for propulsion engines
- Parts for marine generator engines
- Routine maintenance and complete overhaul components
Important Doosan Part-Number Verification
Doosan and Daewoo engines were manufactured in different versions for marine propulsion, buses, trucks, generators, industrial equipment, military equipment, and construction machinery.
Two engines with the same basic model designation may use different components because of:
- Engine serial-number range
- Heavy-, medium-, or light-duty rating
- Mechanical or common-rail fuel system
- Turbocharged or naturally aspirated configuration
- Intercooled or non-intercooled design
- Emissions specification
- Cooling-system arrangement
- Propulsion or generator application
- Marine gearbox
- Regional specification
Before ordering, customers should provide:
- Complete engine model
- Engine serial number
- Existing Doosan or Daewoo part number
- Engine data-plate photograph
- Propulsion or generator application
- Heavy-, medium-, or light-duty rating
- Cooling arrangement
- Marine gearbox model
- Photographs of the existing component
- Required quantity
- Delivery destination
Request a Doosan Marine Parts Quotation
Looking for Doosan L136, L086TI, 4L066C, MD196, L126TI, 4L126TI, 4L126C, V158TI, 4V158C, V222TI, DE08, DE12, DV11, or DV15 engine parts?
Send Alfa Marine Spare Parts your:
- Complete engine model
- Engine serial number
- Required part numbers
- Product descriptions
- Vessel or generator application
- Quantities
- Photographs
- Delivery country and port
We supply genuine, OEM-quality, and selected aftermarket Doosan and Daewoo marine components for routine servicing, emergency repairs, marine generators, and complete engine overhauls.
Alfa Marine Spare Parts – Your Worldwide Supplier of Doosan and Daewoo Marine Engine Spare Parts.
Frequently Asked Questions
Do you supply Doosan marine engine parts?
Yes. Alfa Marine Spare Parts supplies genuine, OEM-quality, and selected aftermarket components for Doosan marine propulsion, auxiliary, and generator engines.
Is Doosan Infracore still the current company name?
The historical Doosan Infracore engine business later became part of HD Hyundai. Following the merger completed on January 1, 2026, the current organization is HD Construction Equipment. Customers may still identify installed engines and spare parts using Doosan, Daewoo, or Doosan Infracore branding.
Which Doosan marine engines do you support?
We supply selected components for engines including:
- L136
- L086TI
- 4L066C
- MD196T
- MD196TI
- L126TI
- 4L126TI
- 4L126C
- V158TI
- 4V158TI
- 4V158C
- V222TI
- DE08
- DE12
- DV11
- DV15
Availability depends on the exact engine model and serial number.
Do you supply Daewoo marine engine parts?
Yes. We can source many components for older Daewoo marine and industrial engine families that remain in vessel, generator, and auxiliary installations.
Can you identify Doosan parts using the serial number?
Yes. Customers should provide the complete engine model, serial number, existing part number, data-plate photograph, and vessel application.
Do you supply Doosan marine generator parts?
Yes. We supply selected filters, injectors, fuel pumps, turbochargers, cooling parts, electrical components, gasket sets, and overhaul parts for Doosan-powered generator installations.
Do you ship Doosan marine parts worldwide?
Yes. We arrange international shipping to shipowners, fleets, shipyards, marine workshops, fishing companies, generator specialists, and offshore operators worldwide.
Can you supply complete Doosan overhaul kits?
Depending on the engine model, we can source complete overhaul kits, in-frame kits, piston-and-liner kits, bearing sets, cylinder-head components, and complete gasket sets.