What we do:

    We are specialist repairers of Fuel Oil Injector Pumps, Injector Valves and Governor of all Engines types.

Who we are!

Leo Marine Diesel is a modern manufacturing and repair facility, strategically located in the new Industrial Park of Schisto, close to Piraeus, specializing in recondition and repair of fuel injection systems and governors for marine diesel engines but also offering a wide range of marine and industrial repairs.

Through the years we have built a reputation in the marine industry, based on our long standing experience in the field, in combination with our qualified and skilled technicians and the use of modern technology together with our continuous commitment to quality which guarantees our services and the satisfaction of our customers.

Our aim is to keep our client's vessels sailing without delays in port for repairs therefore we offer round the clock operation at our premises as well as on situ services on board the vessels with our team of experts.

Each task assigned to us is treated in close co-operation with our customers in order to be completed in the most time and cost effective manner without compromising the quality of the final product.

Why Leo Marine Diesel

Fuel pump & Injector reconditioning

A complete fuel injection refurbishing solution, with the warranty of the 25 years of our experience.

Refurbishing Plunger & Barrel - Reliable and economical way

Reliable and economic alternative to replacing plunger & barrel. Read More


A reliable and economical Renovation for your Injector nozzles. Read More

Fuel pump & Injector reconditioning

Reliable &economic alternative for Spindle guides & non return valves
Read More

Spare Parts for All Types of Engines

Suppliers & stocklists for all types of 2 & 4 stroke engine spare parts. Also on Exchange Basis.


Trained engineers for on board/on situ overhauls, repairs & emergency assistance. Read More

Repairs / Services

In our modern facilities we carried out:

  • Fuel Oil Pumps:
    Recondition and repair of Fuel Oil Pumps - All engine types.
    We can fabricate Plunger of all engine types
    Also a large stock of ready-made Plunger for fast response to vessel's need.
  • Fuel Oil Injector Valve Overhauling / Repairing and Testing of all engine types
  • Fuel Injection Nozzle repairing / Renewal of all engine types
  • Governor Repairing and testing of any type of governor. Many types of governors are also available on exchange basis.

Services On Board

Our skilled engineers can board our clients' vessels worldwide for consultancy, fault diagnosis and fuel injection timing of the main and auxiliary diesel engines. In-situ emergency repairs can also be performed in order to keep the vessel running until a convenient port for major repairs to be carried out.

Calibration & Testing

Latest technology calibration and testing facilities including fuel pump test bench, injector nozzle testers and high accuracy measuring equipment are used to ensure optimum performance of the final product.

Manufactured on Request

Various parts and components of propulsion and auxiliary machinery can be manufactured upon client's request using carefully selected material and production methods to ensure prolonged service on board.


In our stock we maintain a large number of parts and components both from original engine manufacturers as well as from selected aftermarket high quality product makers.
A wide range of new and reconditioned fuel nozzles, atomizers, plunger and barrels, delivery valves and various components are available for direct sale or on exchange basis.
Various parts and components of propulsion and auxiliary machinery can be manufactured upon client's request using carefully selected material and production methods to ensure prolonged service on board the vessel. The final product is quality controlled with latest technology calibration equipment prior to delivery to the client.


Leo Marine Diesel offers its services under ISO 9001-2015 certification. Quality procedures are implemented and maintained at all levels of our services and consistently monitored by the company's Quality Internal Auditors.
Our target is to meet and exceed our customers' requirements without compromising the quality of our products and services. In order to achieve this we have vastly invested on the development of our facilities and on human resources.

ISO 9001:2015
356 Unique Clients
2 Global Awards
8400 Successful Repairs
2560 Projects


Electronic pump test bench

Injector valve testers

Hydraulic governor test stands

Material hardness testers

Turning lathes

CNC lathes

Computer aided milling machines

Surface grinders

Cylindrical grinders

Centerless grinders

Tool cutting machines

Honing Machine

Diesel Engines Injections

Contact Us


PO Box 3214
Phone Numbers Main Office : +30 210 4015 015 Sales : +30 210 4633 186 Fax : +30 210 4615 598
Email Address Main email: info@leomarine.gr Customer support : kiriakidisj@leomarine.gr
Other Details Site Name : https://www.leomarine.gr

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