MAN Engine Maintenance Repair and Overhaul Services

MAN Engine Maintenance Repair and Overhaul Services

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Renowned for unwavering quality and reliability, Neptunus stands as a trusted independent service provider for MAN engine maintenance services. We also support our services with damage analysis and troubleshooting for your MAN marine engines, providing solutions to keep your operations running seamlessly. 

Our skilled technicians streamline work scopes with customized service and maintenance plans to ensure your MAN engines operate at peak performance. Our geographic reach spans diverse regions, including India, the Middle East, and Africa, catering to the marine and offshore industries.

With a substantial track record of servicing over 100+ MAN engines, Neptunus has established itself as a reliable choice. Our proven cost-saving strategies not only enhance engine reliability but are also supported by a robust system and a customer-centric approach.

Why Choose Us for MAN Engine Repair and Overhaul Services?


Our Man engine maintenance services Read more


Our MAN Engine repair specialists efficiently Read more

Spare Parts

We prepare a customized MAN diesel engine Read more

at the Core

Our track record includes successful Read more


Entrusting your MAN engine maintenance Read more

Utilization of Advanced Technology

We are using advanced dual-certified Read more

Maintenance Service Expertise with MAN Engine Models

MAN L+V48/60CR MAN L21/31
MAN L+V32/44CR MAN 12V28/33D
MAN PA6 B OG​ MAN 16 V28/33D
​MAN V28/33D STC​ MAN 20 V28/33D
​MAN L27/38 MAN 12 PA6 BOG

Would You Be Interested In Customized MAN Engine Maintenance Services?

Get the best quote for MAN diesel engine service requirements

MAN Engine MRO Services

MAN Engine Overhaul

When required, we provide major and top MAN engine overhauls and rebuilding services. Our meticulous inspections, refurbishments, and precise reassembly ensure your engine is restored to factory specifications.

MAN Engine Repair

We offer MAN engine repair services for both the mechanical and electronic components of engines. We use genuine MAN engine parts to ensure your engine operates at peak performance.

MAN Engine Troubleshooting

In MAN engine troubleshooting services, our skilled technicians analyze and diagnose engine problems, providing precise solutions through the use of advanced technology.

Other Engine Maintenance and Repair Services

Machine reliability and maintenance management are important for ensuring stable operations, with effective management leading to reduced downtime and improved machine’s reliability in the marine industry. Maintenance plays a very important role in proper asset management.

Several factors influence asset performance, including wear and tear, malfunctioning components, environmental degradation, safety concerns, efficiency decline, regulatory adherence, and unplanned downtime. Effective ship engine maintenance services not only extend the life of vital equipment, but also reduce the danger of environmental incidents and ensure the maritime industry’s sustainability.

As an OEM-authorized maintenance service provider for MAN engines, we provide dependable performance through repair and overhaul services. Our experience ensures that your MAN engines remain in optimum condition, reducing downtime and increasing operational efficiency for our clients. In addition to MAN engines, we provide maintenance services for the other prominent marine engine brands listed below.

  • MRO Services for Niigata Engine

As an OEM-authorized Niigata engine repair overhaul and maintenance provider, we specialize in delivering high-quality repair and overhaul solutions for both engines and Z-Pellers.

  • EMD engine MRO services:

As an OEM-authorised EMD engine repair service provider, we specialize in providing all types of maintenance services, including repair, overhaul, inspection, and troubleshooting services for EMD marine engines.

  • Cat engine MRO services: 

With a team of 27+ experienced engineers, including 6+ CAT engine repair experts, we provide cat engine repair and maintenance services according to the OEM manual guidelines, providing exceptional quality.

  • Yanmar engine maintenance services:

We are an independent Yanmar engine repair and overhaul service provider dedicated to improving the reliability of your engine.

Given the diverse nature of machinery utilized in the marine industry, each asset demands customized maintenance solutions to uphold its operational integrity. At Neptunus, we recognize the importance of this tailored approach to ensuring the optimal performance and longevity of marine equipment. By leveraging our expertise and industry-leading practices, we not only safeguard the reliability of these assets but also mitigate the potential risks associated with unplanned downtime.

Our extensive range of ship machine maintenance, outlined below, is tailored to meet the distinct needs of diverse marine equipment.

  • Marine Diesel Engine Repair Services:

Keeping marine diesel engines in good shape is vital for engine reliability. Our engine repair of marine assets is important as it swiftly tackles any issues, preventing breakdowns and ensuring top performance at sea.

  • Marine Diesel Engine Overhaul Services:

iesel engine overhauling ensures optimal performance and longevity, reducing the risk of breakdowns and costly repairs while enhancing the reliability of marine assets.

  • Best Gearbox Maintenance Services in Marine:

Maintenance services for gearboxes from Neptunus help minimize wear and tear, mitigate the risk of component failure, and maximize the efficiency and lifespan of marine equipment, contributing to overall asset reliability.

  • Marine Clutch Maintenance Services:

Regular maintenance of the marine clutch ensures smooth and efficient operation, preventing slippage and premature wear, thereby extending the lifespan and reliability of critical propulsion systems.

  • Bow-Thruster Maintenance and Repair Services:

Timely repair of the bow thruster optimizes health and reduces the likelihood of downtime.

Aside from maritime maintenance, we additionally specialize in ship engine spare parts for well-known companies such as CAT, EMD (OEM Authorized), and Niigata (OEM Authorized).

As a marine engine spare parts supplier, we offer genuine spare parts. Our extensive inventory, which includes the above mentioned engine brand’s spare parts, enables us to address the different needs of our clients. We take great satisfaction in providing genuine engine spare parts to our maritime clients at low costs, ensuring quality and affordability.