Doosan V158 V8 Marine Engine Spare Parts

The Doosan V158 V8 marine engine is a heavy-duty, turbocharged and intercooled eight-cylinder diesel engine developed for commercial marine propulsion.

Unlike the inline-six Doosan engines covered in smaller displacement ranges, the V158 uses a V8 cylinder arrangement and approximately 14.6 liters of displacement, giving it a compact high-output configuration for demanding marine applications.

The V158 family includes different marine duty ratings, commonly identified as:

V158TIH
V158TIM
V158TIL

These different designations are important because engine speed, output, marine duty and installed components can differ.

For this reason, a request such as:

“I need parts for a Doosan V158.”

is a useful starting point, but it is better to provide:

Doosan V158 + Full Engine Model + Engine Serial Number + Existing Part Number + Clear Photographs

Alfa Marine Spare Parts supports Doosan V158 V8 Marine Engine Spare Parts requirements for routine maintenance, engine repair and complete overhaul.

Depending on component and availability, supply options can include genuine parts, OEM-quality components, selected aftermarket alternatives and professionally rebuilt or remanufactured components.

1. What Is the Doosan V158 V8 Marine Engine?

The Doosan V158 is a four-stroke V8 marine diesel engine designed for commercial propulsion.

Its general construction includes:

V8 Cylinder Configuration
Eight Cylinders
Four-Stroke Diesel Operation
Approximately 14.6-Liter Displacement
Direct Diesel Injection
Turbocharging
Intercooling / Charge-Air Cooling
Water Cooling
Heavy-Duty Marine Construction
Commercial Marine Propulsion Configuration

The V8 configuration gives the engine a different layout from Doosan's inline-six marine engines.

This affects the arrangement of components such as:

Cylinder Heads
Exhaust Manifolds
Intake Components
Turbocharger Connections
Cooling Pipes
Valve-Train Components
Exhaust Components

2. Doosan V158 V8 Technical Information

Typical V158 marine-engine specifications include:

Technical InformationDoosan V158Engine FamilyV158ConfigurationV8Number of Cylinders8Operating CycleFour-Stroke DieselDisplacementApprox. 14.6 LitersBoreApprox. 128 mmStrokeApprox. 142 mmAspirationTurbocharged & IntercooledFuel SystemDirect Diesel InjectionCoolingWater CooledV158TIH OutputApprox. 480 PS / 353 kWV158TIM OutputApprox. 540 PS / 397 kWV158TIL OutputApprox. 680 PS / 500 kWTypical Speed RangeApprox. 1,800–2,300 rpmApplicationMarine Propulsion

The different V158 ratings should not automatically be treated as identical engines for replacement-parts purposes.

Always confirm the full model designation and serial number.

3. What Is the Difference Between V158TIH, V158TIM and V158TIL?

The V158 family was supplied in different marine duty configurations.

A practical way to understand them is:

Doosan V158TIH

Associated with a lower-speed heavy-duty marine rating.

Typical rating:

Approx. 480 PS / 353 kW at 1,800 rpm

Doosan V158TIM

Associated with a medium-duty marine rating.

Typical rating:

Approx. 540 PS / 397 kW at 2,100 rpm

Doosan V158TIL

Associated with a higher-output/light-duty marine rating.

Typical rating:

Approx. 680 PS / 500 kW at 2,300 rpm

The engine family may be the same, but differences in rating can affect configuration-sensitive parts.

Therefore:

V158 does not automatically mean every V158 component is interchangeable.

4. Why Should the Full V158 Model Be Provided?

Imagine a customer requests:

“Doosan V158 turbocharger.”

We still want to know whether the engine is:

V158TIH
V158TIM
V158TIL

We also want:

Engine Serial Number
Existing Turbocharger Number
Turbocharger Manufacturer
Clear Photographs

The same principle applies to:

Fuel Injectors
Injection Pump
Turbocharger
Intercooler
Raw-Water Pump
Freshwater Pump
Heat Exchanger
Starter Motor
Alternator
Gasket Sets
Internal Engine Components

5. Where Is the Doosan V158 Used?

The Doosan V158 has been used in commercial marine applications where a relatively compact V8 diesel is required.

Applications can include:

Commercial Fishing Vessels
Fishing Boats
Workboats
Tug and Utility Craft
Passenger Vessels
Service Boats
Commercial Marine Craft
Repower Applications
Other Heavy-Duty Marine Installations

These applications can involve sustained operation under substantial engine load.

That places particular importance on:

Fuel-System Condition
Turbocharger Performance
Intercooler Efficiency
Raw-Water Cooling
Freshwater Cooling
Lubrication
Exhaust-System Condition

6. What Doosan V158 V8 Spare Parts Can Be Required?

Spare-parts requirements can range from normal service components to complete overhaul parts.

Fuel-System Parts

Potential requirements can include:

Fuel Injectors
Injector Nozzles
Injector Seals
Injector Hardware
Injection Pump Components
Fuel Filters
Fuel Supply Components
Fuel Pipes
Fuel Connections
Pump Seals
Gaskets
O-Rings

Turbocharger Parts

Potential requirements can include:

Complete Turbochargers
Turbocharger Cartridges
Compressor Components
Turbine Components
Turbocharger Bearings
Turbocharger Seals
Oil Feed Components
Oil Drain Components
Intake Connections
Exhaust Connections
Turbocharger Gaskets
Mounting Components

Intercooler & Charge-Air Parts

Potential requirements can include:

Complete Intercoolers
Charge-Air Cooler Cores
Intercooler Housings
End Covers
Charge-Air Pipes
Charge-Air Hoses
Cooling-Water Connections
Intercooler Gaskets
O-Rings
Charge-Air Seals
Mounting Components

Cooling-System Parts

Potential requirements can include:

Freshwater Pumps
Raw-Water Pumps
Raw-Water Pump Impellers
Thermostats
Thermostat Housings
Heat Exchangers
Cooling Pipes
Cooling Hoses
Mechanical Seals
Gaskets
O-Rings

Lubrication-System Parts

Potential requirements can include:

Engine Oil Pumps
Oil Pump Components
Engine Oil Filters
Oil Cooler Components
Oil Pressure Components
Turbocharger Oil Lines
Front Crankshaft Seals
Rear Crankshaft Seals
Gaskets
O-Rings

Cylinder Head & Valve Parts

Potential requirements can include:

Complete Cylinder Heads
Cylinder Head Gaskets
Intake Valves
Exhaust Valves
Valve Guides
Valve Seats
Valve Springs
Rocker Components
Valve Cover Gaskets

Internal Engine Parts

Potential requirements can include:

Pistons
Piston Rings
Piston Pins
Cylinder Liners / Cylinder Components
Connecting Rods
Main Bearings
Connecting Rod Bearings
Thrust Components
Crankshaft
Camshaft Components
Timing Components

Electrical Components

Potential requirements can include:

Starter Motors
Starter Solenoids
Alternators
Charging Components
Engine Electrical Components
Wiring Components
Electrical Connections

7. Why Is Correct Doosan V158 Parts Identification Important?

Many V158 engines have been operating for years.

During that time, an engine may have undergone:

Injector Replacement
Injection Pump Repair
Turbocharger Replacement
Intercooler Repair
Raw-Water Pump Replacement
Freshwater Pump Replacement
Heat Exchanger Replacement
Cylinder Head Reconditioning
Starter Replacement
Alternator Replacement
Partial Overhaul
Complete Rebuild

This means the component currently installed may not necessarily be identical to the component originally supplied with the engine.

That is why existing component identification is valuable.

8. What Information Should I Send for Doosan V158 Parts?

Provide:

Complete Engine Model
V158TIH / V158TIM / V158TIL
Engine Serial Number
Photograph of Engine Identification Plate
Existing Part Number
Component Manufacturer Number
Casting Number Where Available
Quantity Required
Clear Photographs
Vessel Application
Delivery Country or Port

For major components, identification directly from the installed component is particularly useful.

9. What If the V158 Part Number Cannot Be Read?

This is common on older marine engines.

Identification numbers can become:

Corroded
Painted Over
Scratched
Oil Covered
Dirt Covered
Heat Damaged
Partially Missing

Do not immediately discard the old component.

Photograph:

Complete Component
Front
Rear
Both Sides
Identification Plate
Mounting Arrangement
Fuel Connections
Oil Connections
Cooling Connections
Intake Connections
Charge-Air Connections
Exhaust Connections
Electrical Connections Where Applicable
Casting Numbers
Remaining Markings

Several details together can sometimes help identify the correct part.

10. Doosan V158 Fuel Injector Parts

Potential requirements can include:

Complete Fuel Injectors
Injector Nozzles
Injector Seals
Injector Hardware
Related Fuel-System Components

The injectors directly influence:

Starting
Combustion
Cylinder Balance
Engine Power
Exhaust Smoke
Fuel Consumption

11. What Are Possible Signs of V158 Injector Problems?

Possible symptoms include:

Difficult Starting
Rough Idle
Uneven Running
Increased Exhaust Smoke
Reduced Power
Increased Fuel Consumption
Abnormal Combustion Noise
Cylinder-to-Cylinder Temperature Differences

However:

These symptoms do not automatically prove injector failure.

Other possible causes include:

Fuel Supply Problems
Injection Pump Problems
Low Compression
Valve Leakage
Cylinder Wear
Turbocharger Problems
Intercooler Problems

12. One V158 Cylinder Is Weak — Does It Need an Injector?

Possibly.

But first investigate the cylinder.

Check:

Injector Condition
Fuel Delivery
Injection Pump Operation
Compression
Intake Valve
Exhaust Valve
Piston Rings
Cylinder Condition

A fuel injector cannot correct a mechanical compression problem.

13. Should All Eight V158 Injectors Be Replaced Together?

Not automatically.

If one cylinder shows a problem, diagnose that cylinder first.

If testing later shows that several injectors have similar wear, servicing or replacement as a set may become appropriate.

The important point is:

Test first → Decide second.

14. Doosan V158 Injection Pump Parts

Potential requirements can include:

Complete Injection Pump Components
Pump Elements
Fuel Supply Components
Pump Seals
Fuel Pipes
Fuel Connections
Gaskets
O-Rings

Identification from the fuel equipment currently installed should be provided whenever possible.

15. Why Is My Doosan V158 Difficult to Start?

Possible causes include:

Weak Batteries
Slow Cranking
Poor Battery Connections
Restricted Fuel Filter
Air Entering the Fuel System
Poor Fuel Supply
Injector Problems
Injection Pump Problems
Low Compression
Valve-Sealing Problems

A useful sequence is:

Cranking Speed → Fuel Supply → Injection → Compression

16. Why Does the V158 Lose Power Under Load?

This is an important troubleshooting question.

A V158 may start correctly.

It may sound normal at idle.

Then once the vessel is under propulsion load, the engine struggles.

Possible causes include:

Restricted Fuel Filters
Poor Fuel Supply
Air Entering the Fuel System
Injector Problems
Injection Pump Problems
Restricted Air Filter
Intake Restriction
Turbocharger Problems
Charge-Air Leakage
Intercooler Fouling
Exhaust Leakage
Exhaust Restriction
Low Compression
Hull Fouling
Propeller Fouling
Excessive Propeller Load

At idle, demand is relatively low.

Under load, demand increases for:

Fuel + Air + Boost + Cooling + Exhaust Flow

17. Why Should Fuel Filters Be Checked First?

A partly restricted filter may still allow enough fuel for:

Starting
Idling
Low-Load Operation

When the vessel operates under heavier load, fuel demand rises.

Possible symptoms can then include:

Reduced RPM
Slow Acceleration
Power Loss
Increased Smoke
Poor Load Response

Basic fuel-supply checks should come before expensive fuel-system repairs.

18. Doosan V158 Air-Intake Parts

Potential requirements can include:

Air Filter Elements
Air Cleaner Components
Intake Hoses
Intake Pipes
Turbocharger Inlet Components
Charge-Air Pipes
Charge-Air Hoses
Clamps
Intake Gaskets
Charge-Air Gaskets
Seals

19. Why Can Restricted Airflow Cause Black Smoke?

Diesel combustion requires sufficient air.

If the cylinders receive too little air for the quantity of fuel being injected, possible symptoms include:

Black Smoke
Reduced Power
Poor Load Response
Higher Exhaust Temperature
Increased Fuel Consumption

Before adjusting the fuel system, make sure the engine is receiving sufficient clean air.

20. Doosan V158 Turbocharger Parts

Potential requirements can include:

Complete Turbochargers
Turbocharger Cartridges
Compressor Wheels
Compressor Housings
Turbine Components
Bearings
Seals
Oil Feed Components
Oil Drain Components
Intake Connections
Exhaust Connections
Turbocharger Gaskets
Mounting Hardware

21. What Are Possible Signs of V158 Turbocharger Problems?

Possible symptoms include:

Reduced Boost
Reduced Engine Power
Poor Load Response
Black Smoke
Higher Exhaust Temperature
Abnormal Turbocharger Noise
Oil Leakage
Increased Oil Consumption

These symptoms should be evaluated together with:

Fuel System
Air Intake
Intercooler
Charge-Air System
Exhaust System

22. Does Black Smoke Mean the V158 Turbocharger Is Bad?

No.

Possible causes also include:

Restricted Air Filter
Intake Restriction
Charge-Air Leakage
Intercooler Fouling
Injector Problems
Injection Pump Problems
Exhaust Problems
Low Compression
Excessive Engine Load

The turbocharger should not be replaced only because black smoke is present.

23. Can a V158 Turbocharger Lose Performance Gradually?

Yes.

Possible causes include:

Compressor Fouling
Turbine Fouling
Bearing Wear
Oil Contamination
Intake Restriction
Exhaust Leakage
Exhaust Restriction

The engine can continue running while turbocharger efficiency slowly deteriorates.

24. Why Is Turbocharger Oil Supply Important?

The turbocharger operates at very high rotational speed.

Its bearing system depends on clean and reliable lubrication.

Poor oil supply can contribute to:

Bearing Wear
Shaft Damage
Overheating
Oil Leakage
Turbocharger Failure

If a turbocharger fails, investigate why before installing the replacement.

25. Why Is Turbocharger Oil Drain Important?

Supplying oil is only half of the lubrication process.

Oil must also leave the turbocharger freely.

A restricted drain can contribute to:

Oil Leakage
Carbon Deposits
Seal Problems
Bearing Problems

Think of the system as:

Oil Supply → Turbocharger Bearings → Free Oil Drain

26. What Should Be Checked Before Installing a Replacement V158 Turbocharger?

Inspect:

Engine Oil Condition
Turbocharger Oil Feed
Turbocharger Oil Drain
Air Filter
Intake System
Foreign-Object Damage
Charge-Air System
Intercooler
Exhaust Leakage
Exhaust Restriction

The objective should be:

Identify failure cause → Correct cause → Install replacement

27. Doosan V158 Intercooler Parts

Potential requirements can include:

Complete Intercoolers
Charge-Air Cooler Cores
Housings
End Covers
Charge-Air Pipes
Charge-Air Hoses
Cooling-Water Connections
Gaskets
O-Rings
Seals
Mounting Components

28. What Does the V158 Intercooler Do?

The turbocharger compresses intake air.

Compression raises the temperature of that air.

The intercooler removes part of this heat before the air reaches the cylinders.

The airflow can be simplified as:

Air Filter → Turbocharger → Hot Compressed Air → Intercooler → Cooler Charge Air → Engine

29. What Are Possible Signs of V158 Intercooler Problems?

Possible symptoms include:

Reduced Power
Increased Black Smoke
Poor Load Response
Higher Exhaust Temperature
Higher Charge-Air Temperature
Increased Fuel Consumption
Cooling-Water Leakage

A restricted intercooler can sometimes make a healthy turbocharger appear weak.

30. Can a Small Charge-Air Leak Cause Noticeable V158 Power Loss?

Yes.

Possible leak points include:

Charge-Air Hoses
Pipe Connections
Clamps
Gaskets
Intercooler Connections
Seals

At low load, the leak may not be obvious.

As boost increases, more compressed air escapes.

Possible results include:

Reduced Boost
Black Smoke
Poor Acceleration
Reduced Maximum Power

31. Doosan V158 Cooling-System Parts

Potential requirements can include:

Freshwater Pumps
Raw-Water Pumps
Raw-Water Pump Impellers
Thermostats
Heat Exchangers
Intercooler Cooling Components
Cooling Pipes
Cooling Hoses
Mechanical Seals
Gaskets
O-Rings

32. Why Is My Doosan V158 Overheating?

Possible causes include:

Low Coolant Level
Coolant Leakage
Thermostat Problems
Freshwater Pump Wear
Restricted Cooling Passages
Heat Exchanger Fouling
Intercooler Cooling Restriction
Reduced Raw-Water Flow
Restricted Sea Strainer
Damaged Raw-Water Pump Impeller
Restricted Cooling Hoses
Excessive Engine Load

The complete cooling circuit should be considered.

33. Why Does the V158 Overheat Mainly Under Load?

At idle, heat production is relatively low.

Under propulsion load:

More Fuel → More Combustion → More Boost → More Heat → Greater Cooling Demand

A marginal cooling system can therefore appear healthy at idle but struggle during sustained operation.

34. Doosan V158 Freshwater Pump Parts

Potential requirements can include:

Complete Freshwater Pumps
Pump Housings
Pump Shafts
Bearings
Mechanical Seals
Impellers
Gaskets
O-Rings

35. Can a V158 Freshwater Pump Be Worn Without Leaking?

Yes.

Possible internal problems include:

Impeller Wear
Impeller Damage
Internal Corrosion
Bearing Wear
Reduced Pumping Efficiency

A dry pump does not automatically mean coolant circulation is correct.

36. Doosan V158 Raw-Water Pump Parts

Depending on marine installation, requirements can include:

Complete Raw-Water Pumps
Flexible Impellers Where Applicable
Pump Covers
Pump Shafts
Bearings
Mechanical Seals
Gaskets
O-Rings

37. Are All Doosan V158 Raw-Water Pumps the Same?

Do not assume so.

The installed pump can depend on:

V158 Engine Rating
Vessel Installation
Cooling-System Arrangement
Previous Repairs
Previous Modifications

For correct identification, provide:

Engine Serial Number
Existing Pump Number
Pump Manufacturer
Clear Photographs
Mounting Arrangement
Hose Connections

38. What If the V158 Raw-Water Pump Impeller Has Missing Blades?

Do not simply install a new impeller.

Search for the missing pieces.

Inspect:

Pump Outlet
Seawater Hoses
Heat Exchanger
Intercooler Cooling Passages
Other Downstream Coolers

Missing impeller fragments can continue restricting cooling flow.

39. Doosan V158 Heat Exchanger Parts

Potential requirements can include:

Complete Heat Exchangers
Heat Exchanger Cores
Housings
End Covers
Cooling Connections
Gaskets
O-Rings
Seals

40. Why Can a V158 Heat Exchanger Work at Idle but Struggle Under Load?

A partially restricted heat exchanger may still remove sufficient heat at low engine output.

As power increases, cooling demand rises.

Possible restrictions include:

Salt Deposits
Scale
Sediment
Marine Growth
Corrosion
Raw-Water Pump Impeller Fragments
Reduced Seawater Flow

This is why overheating only under load often deserves closer cooling-system investigation.

41. Doosan V158 Lubrication-System Parts

Potential requirements can include:

Complete Engine Oil Pumps
Oil Pump Components
Oil Filters
Oil Cooler Components
Oil Pressure Components
Turbocharger Oil Lines
Front Crankshaft Seals
Rear Crankshaft Seals
Gaskets
O-Rings

42. What Can Cause Low V158 Oil Pressure?

Possible causes include:

Low Engine Oil Level
Incorrect Lubricating Oil
Deteriorated Oil
Fuel Dilution
Restricted Oil Filter
Oil Pump Wear
Pressure-Regulating Problems
Main Bearing Wear
Connecting Rod Bearing Wear
Crankshaft Wear
Incorrect Pressure Indication

Confirm actual pressure before replacing major mechanical components.

43. Why Is Hot Oil Pressure Important?

Cold oil is thicker.

An older engine may show good pressure immediately after starting but lower pressure after reaching full operating temperature.

Compare oil pressure under similar:

Temperature
Engine Speed
Engine Load

Increasing internal clearances can become more noticeable when the oil is hot.

44. What If the V158 Oil Level Starts Rising?

An unexplained increase in crankcase oil level deserves investigation.

Possible contamination includes:

Fuel
Coolant

Fuel dilution reduces oil viscosity.

Coolant contamination can significantly reduce bearing protection.

45. Doosan V158 Cylinder Head Parts

Because the V158 uses a V8 layout, cylinder-head and valve-train requirements should be identified carefully for the exact engine configuration.

Potential requirements can include:

Complete Cylinder Heads
Cylinder Head Gaskets
Intake Valves
Exhaust Valves
Valve Guides
Valve Seats
Valve Springs
Rocker Components
Valve Cover Gaskets
Related Hardware

46. What Should Be Inspected During V158 Cylinder Head Repair?

Inspect:

Cracking
Corrosion
Flatness
Sealing Surfaces
Intake Valves
Exhaust Valves
Valve Seats
Valve Guides
Injector Seating Areas
Cooling Passages
Previous Machining
Heat Damage

The inspection should determine whether the cylinder-head components can be:

Reused → Reconditioned → Repaired → Replaced

47. Why Can a New V158 Head Gasket Fail Again?

Because the gasket can be the result rather than the cause.

Possible underlying problems include:

Engine Overheating
Cylinder Head Distortion
Cooling-System Restriction
Damaged Sealing Surfaces
Incorrect Assembly

A complete repair addresses:

Failure + Root Cause

48. Doosan V158 Piston and Cylinder Parts

Potential requirements can include:

Pistons
Piston Rings
Piston Pins
Cylinder Liners / Cylinder Components
Connecting Rods
Related Internal Components

49. Does Excessive V158 Blow-By Mean the Engine Only Needs Rings?

No.

Possible causes include:

Piston Ring Wear
Cylinder Wear
Piston Wear
Ring-Groove Wear
Internal Damage

Installing new rings into badly worn cylinder components may not restore correct sealing.

50. Why Should V158 Cylinders Be Measured During Overhaul?

Visual inspection can reveal:

Scoring
Surface Damage
Heavy Wear

Measurement can reveal:

Cylinder Diameter
Taper
Out-of-Round Condition

The better approach is:

Inspect → Measure → Decide → Order

51. Doosan V158 Crankshaft and Bearing Parts

Potential requirements can include:

Crankshaft
Main Bearings
Connecting Rod Bearings
Thrust Components
Connecting Rods
Front Crankshaft Seal
Rear Crankshaft Seal

52. Why Should V158 Bearing Size Be Confirmed?

An older engine may already have undergone crankshaft repair.

The crankshaft may have been:

Polished
Repaired
Machined
Replaced

Before ordering bearings, measure:

Main Journal Diameter
Connecting Rod Journal Diameter
Taper
Out-of-Round
Surface Condition

Measure first → Select bearings second.

53. Doosan V158 Starter Motor Parts

Potential requirements can include:

Complete Starter Motors
Starter Solenoids
Starter Components
Electrical Connections
Mounting Components

If a V158 cranks slowly, do not immediately replace the starter.

Check:

Batteries
Battery State of Charge
Battery Terminals
Battery Cables
Engine Grounds
Starter Connections

54. Doosan V158 Alternator Parts

Potential requirements can include:

Complete Alternators
Alternator Components
Drive Components
Pulleys
Electrical Connections
Mounting Hardware

Repeated battery problems should lead to inspection of the entire charging system.

55. Doosan V158 Gaskets and Seals

Potential requirements can include:

Complete Engine Gasket Sets
Partial Gasket Sets
Cylinder Head Gaskets
Valve Cover Gaskets
Intake Gaskets
Charge-Air Gaskets
Intercooler Gaskets
Exhaust Gaskets
Turbocharger Gaskets
Freshwater Pump Gaskets
Raw-Water Pump Gaskets
Oil Pump Gaskets
Fuel-System Seals
Cooling-System O-Rings
Front Crankshaft Seals
Rear Crankshaft Seals

56. Doosan V158 Complete Overhaul Parts

Depending on engine condition, overhaul requirements can include:

Pistons
Piston Rings
Piston Pins
Cylinder Liners / Cylinder Components
Main Bearings
Connecting Rod Bearings
Thrust Components
Connecting Rods
Cylinder Head Components
Intake Valves
Exhaust Valves
Valve Guides
Valve Seats
Complete Gasket Set
Crankshaft Seals
Fuel Injectors
Injection Pump Components
Turbocharger Components
Intercooler Components
Freshwater Pump Components
Oil Pump Components

More extensive rebuilds may require:

Crankshaft
Camshaft Components
Complete Cylinder Head Components
Complete Turbocharger
Complete Intercooler
Injection Pump
Freshwater Pump
Raw-Water Pump
Heat Exchanger
Starter Motor
Alternator

57. Should I Order a Complete V158 Overhaul Kit Before Opening the Engine?

Some known maintenance components can be prepared beforehand.

For major internal components, final selection should ideally follow dismantling, cleaning, inspection and measurement.

Determine:

Cylinder Condition
Piston Condition
Crankshaft Condition
Bearing Requirement
Cylinder Head Condition
Valve Condition
Turbocharger Condition
Intercooler Condition
Fuel-System Condition
Oil Pump Condition
Cooling-System Condition

A practical overhaul sequence is:

Identify → Diagnose → Disassemble → Clean → Inspect → Measure → Confirm Parts → Rebuild

58. Genuine Doosan V158 Parts

Depending on availability, Alfa Marine Spare Parts can support selected genuine Doosan V158 V8 marine engine parts requirements.

59. OEM-Quality Doosan V158 Parts

Depending on component and availability, OEM-quality options may be available for selected:

Fuel-System Components
Turbocharger Components
Intercooler Components
Cooling Components
Pumps
Filters
Bearings
Electrical Components
Internal Engine Parts

60. Aftermarket Doosan V158 Parts

Depending on component and required specification, selected aftermarket alternatives may be available for:

Filters
Gaskets
Seals
Bearings
Pistons
Piston Rings
Cylinder Components
Cooling Components
Pump Components
Turbocharger Components
Intercooler Components
Maintenance Parts
Selected Internal Engine Parts

Compatibility should always be confirmed against the exact V158 specification.

61. Remanufactured Doosan V158 Components

Depending on availability, professionally rebuilt or remanufactured options may be available for selected:

Fuel Injectors
Injection Components
Turbochargers
Cylinder Head Components
Starter Motors
Alternators
Pumps

62. Who Do We Supply?

Alfa Marine Spare Parts supports Doosan V158 V8 spare-parts requirements for:

Shipyards
Ship Repairers
Marine Engineers
Chief Engineers
Technical Superintendents
Fleet Operators
Marine Service Companies
Commercial Fishing Companies
Fishing Vessel Operators
Workboat Operators
Offshore Operators
Government Fleets
Maritime Contractors
Boat Builders
Marine Equipment Distributors
Commercial Vessel Operators

63. Worldwide Doosan V158 Spare Parts Supply

Alfa Marine Spare Parts supports Doosan V158 V8 Marine Engine Spare Parts requirements across major marine markets, including:

Spain
Netherlands
Italy
Monaco
France
Belgium
Germany
Greece
United Kingdom
Dubai / UAE
Nigeria
Miami / Florida
Texas
Toronto / Canada
Caribbean
Central America
South America
Other Major International Seaports

64. Why Choose Alfa Marine Spare Parts for Doosan V158 Parts?

Alfa Marine Spare Parts supports Doosan V158 V8 engine parts requirements for:

Routine Maintenance
Fuel-System Repair
Turbocharger Repair
Intercooler Repair
Cooling-System Repair
Cylinder Head Repair
Crankshaft Repair
Internal Engine Repair
Complete Engine Overhaul

For accurate identification, provide:

Doosan V158 + V158TIH / V158TIM / V158TIL + Engine Serial Number + Existing Part Number + Clear Photographs

For turbochargers, intercoolers, pumps, injectors, injection equipment, heat exchangers, starters and alternators, identification from the currently installed component is particularly useful.

65. What Information Should I Send for Doosan V158 Parts?

Please provide:

Engine Model: Doosan V158 V8

Full Model: V158TIH / V158TIM / V158TIL

Engine Serial Number:

Required Part:

Existing Part Number:

Quantity:

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Attach photographs of the engine identification plate and required component whenever possible.

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Doosan V158 V8 Marine Engine Spare Parts