Project
Neptunus Power
May 11, 2026
Nigeria is one of Africa’s largest maritime and offshore markets, where vessel reliability is critical to maintaining uninterrupted operations across the oil & gas, offshore, dredging, port, and commercial shipping sectors. At Neptunus, we provide professional marine engine repair services in Nigeria, supporting vessel owners, ship managers, and offshore operators with planned maintenance as well as emergency technical assistance. Our engineers understand the operational realities of working in Nigeria, including port operations, vessel schedules, offshore mobilisation, local logistics, customs procedures, and the challenges that can impact project timelines.
Our extensive experience enables us to plan projects efficiently, anticipate potential bottlenecks, and deliver repairs within demanding operational windows. Whether the work involves emergency breakdown support, riding squad attendance, onboard troubleshooting, or complete dry dock overhauls, we follow a structured engineering approach focused on minimising downtime, improving maintenance planning, and restoring engine performance safely and efficiently. By combining international engineering standards with practical local knowledge, we help operators keep their vessels operational while reducing maintenance risks and lifecycle costs.
Neptunus offers both OEM-authorised and independent marine engine services, providing flexible maintenance solutions for a wide range of marine diesel engines. From technical inspections and condition assessments to complete engine overhauls, commissioning, performance optimisation, and spare parts support, our experienced engineers deliver reliable lifecycle services tailored to the operational requirements of Nigeria’s maritime industry.Send in your Enquiry for a Quote
Neptunus provides comprehensive marine engine repair, overhaul, troubleshooting, and lifecycle support for a wide range of medium-speed and high-speed marine diesel engines operating throughout Nigeria. Our engineers are experienced in supporting both OEM-authorised and independent service projects, enabling vessel owners to select maintenance solutions that best match their operational and commercial requirements.
As an OEM-authorised service provider for Niigata and EMD marine engines, we perform repairs and overhauls in accordance with manufacturer specifications, using approved engineering procedures and genuine spare parts where required. This ensures optimum engine performance, reliability, and compliance throughout the equipment lifecycle.
In addition to our OEM capabilities, we have extensive field experience servicing many of the world’s leading marine engine manufacturers, including Caterpillar (CAT), Yanmar, Wartsila, MAN, MTU, Bergen, and Daihatsu. Our engineering teams routinely undertake engine inspections, troubleshooting, major overhauls, component refurbishment, fuel injection system repairs, cylinder head overhauls, crankshaft inspections, commissioning, and preventive maintenance across diverse vessel types.
Whether supporting a planned maintenance programme or responding to an emergency engine failure, our engineers combine technical expertise with practical operational knowledge to deliver reliable repair solutions that minimise downtime and maximise engine availability.Send in your Enquiry for a Quote
Neptunus provides marine engine repair and overhaul services across Nigeria’s major commercial ports, offshore terminals, shipyards, and oil & gas logistics hubs. Our engineers are experienced in planning mobilisation activities, coordinating with local stakeholders, and delivering technical support while working within port regulations and operational schedules.
Our project experience across Nigeria enables us to mobilise efficiently for both planned maintenance and emergency repair assignments, reducing response time and ensuring vessels return to service with minimal operational disruption.Send in your Enquiry for a Quote
The offshore sector requires engineering partners capable of responding quickly while maintaining high technical standards in demanding operating environments. Neptunus provides offshore marine engine repair and overhaul services for a broad range of vessel types supporting Nigeria’s offshore oil & gas industry.
Our offshore support includes riding squad mobilisation, emergency breakdown response, onboard troubleshooting, major engine overhauls, preventive maintenance, component replacement, commissioning, and technical supervision. We support offshore supply vessels (OSVs), platform supply vessels (PSVs), anchor handling tug supply (AHTS) vessels, dredgers, harbour tugs, crew boats, barges, construction vessels, FPSOs, and other specialised offshore assets operating throughout the Gulf of Guinea.
By combining experienced marine engineers, structured project planning, and efficient mobilisation, we help operators reduce downtime, improve maintenance planning, and maintain reliable vessel performance throughout offshore operations.Neptunus has successfully executed marine engine repair, overhaul, gearbox repair, and technical supervision projects across Nigeria, supporting commercial shipping, offshore operators, and marine service providers. Our project portfolio reflects our capability to deliver technically complex work while adapting to local operational requirements and tight project schedules.
Every project undertaken by Neptunus follows a systematic process that includes technical evaluation, repair planning, quality inspections, performance testing, and final commissioning. This disciplined approach enables vessel owners to achieve reliable engine performance while reducing maintenance risks and extending equipment service life.Send in your Enquiry for a Quote
Effective marine engine maintenance depends on the timely availability of reliable spare parts. Neptunus supports vessel owners and marine operators across Nigeria with a comprehensive range of genuine OEM and high-quality replacement marine engine spare parts for planned maintenance, emergency repairs, and complete engine overhauls.
As an OEM-authorised supplier for EMD marine engine spare parts, we provide genuine components that meet manufacturer specifications and support long-term engine reliability. In addition, we supply a wide range of spare parts for leading marine engine brands, including Caterpillar (CAT), Wärtsilä, Yanmar, and MAN, helping operators minimise procurement lead times and maintain critical engine inventory.
Our spare parts portfolio includes overhaul kits, pistons, cylinder liners, cylinder heads, bearings, fuel injection components, pumps, filters, turbocharger parts, cooling system components, gaskets, seals, valves, lubrication system parts, and other essential engine components required for both routine maintenance and major overhauls.
Backed by technical expertise and an established global supply network, Neptunus ensures that vessel owners have access to the right marine engine spare parts to support reliable operation, improved maintenance planning, and extended engine service life.Fill in Details for a Quote