ROMAGA Manutenção e Reparos de Motores Diesel Ltda, like SAIKAI, works with marine and stationary diesel engines (low and medium speeds, 4 and 2 stroke), among which can be mentioned Yanmar, MaK, Villares B&W, Wärtsilä, Sulzer, Rolls-Royce Marine-Ulstein Bergen, Daihatsu, SEMT Pielstick, Stork Werkspoor, Paxman, Ruston, Mirrleess Blackstone, Nohab, Wichmann, Alco, EMD and MTU. It also reviews turbochargers, mainly from ABB, MAN, KBB, Napier, IHI and Mitsubishi brands.

It has a specialized technical team and its own equipped workshop to fully attend to its activities.

The commercial combination between ROMAGA and SAIKAI, resulting from complementary synergy, became the ROMAGA-SAIKAI Group and has been operating in the maritime navigation, offshore support, oil & gas prospecting (rigs) and energy generation (thermoelectric plants) markets.

The group thus constituted commercially, also gathers the capacity, through its European and Asian representatives, to manage the supply of original spare parts for several diesel engines and has been standing out in the market, recognized by the experience of years in the activity and quality of its services.


SAIKAI DIESEL covers all aspects of service, from repair and maintenance on diesel engines and their peripherals to supplying genuine spare parts from various manufacturers, applicable to the marine and offshore industries as well as thermoelectric power plants.

It was created to meet a new market reality, which demands quality and reliability, combined with the multipotentiality of its experienced employees and extreme competitiveness in the service sector, thanks to precise planning and rigorous monitoring processes.

Site Map

18, Pedro Alves Street - Santo Cristo

Rio de Janeiro - RJ - 20220-281 - Brazil


Monday to Friday from 8 am to 6 pm

Saturday from 8 am to 1 pm

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