EMD (OEM) Authorized Engine Repair and Overhaul Services

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We are an EMD OEM-authorized engine service provider, and we know the critical importance of keeping these engines in top condition, which is why we offer comprehensive EMD engine overhaul and repair services.

With an exclusive partnership spanning over 15 years, our dedicated team of skilled engineers and technicians proudly serves as India’s foremost repair service provider for EMD engines. Neptunus, boasting a remarkable 28 years of service experience, has become a trusted partner for marine vessel operators worldwide. 

Our team of over 27 highly skilled engineers possesses a wealth of expertise, particularly with EMD engines, ensuring that every repair and overhaul project is executed with the highest level of precision and attention to detail. With in-depth knowledge and hands-on experience, they have worked on various overhaul and repair projects for marine vessels across India, the Middle East, Europe, and Africa. Our strong presence in major Indian dry-docking regions such as Mumbai, Cochin, Goa, Kolkata, Chennai, Visakhapatnam, and Haldia guarantees that our comprehensive maintenance solutions are readily available to our diverse and discerning clientele, providing top-notch service wherever it’s needed.

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Challenges in EMD Engine Repair and Overhaul

Repairing and overhauling EMD engines can present various challenges, including:

  • Shortage of Skilled Technicians: Finding and retaining experienced technicians with specialized knowledge in EMD engine repair and overhaul can be challenging, especially in remote locations.
  • Specialized Tool and Equipment Availability: Ensuring the availability of specialized tools and equipment required for EMD engine overhauls can be challenging. 
  • Long Lead Items Affecting EMD Engine Repair Schedules: One of the significant challenges faced in EMD engine repair is the long lead times associated with procuring specialized components or parts. These long lead items can severely impact the scheduling of repair and overhaul projects, leading to delays and extended downtimes.
  • Cost and Budget Constraints: EMD engine services can be capital-intensive, and organizations may face challenges in allocating sufficient budgets for technician training, equipment acquisition, and facility upgrades.

Why Choose Us for EMD Engine Repair and Overhaul Services?

OEM Authorized Service Provider

Neptunus proudly serves as an OEM Read more

Years of Experience

With 15+ years of OEM experience and Read more

Shortest Turnaround Time

We greatly value quick Read more

Remote and On-Site Support

We provide remote assistance Read more

Genuine and Optimized Spare Parts List

In order to guarantee the Read more

Utilization of Advanced Technology

We use the latest techniques and Read more

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Repair & Overhaul Service Expertise with EMD Engine Models

EMD 8-645-E1 EMD 16-645-E4C/F4B EMD 20-645-E5 EMD 8-645-E8
EMD 12-645-E1 EMD 20-645-E4C/F4B EMD 8-645-E7 EMD 12-645-E8
EMD 16-645-E1 EMD 8-645-E5 EMD 12-645-E7 EMD 16-645-E8
EMD 8-645-E4C/F4B EMD 12-645-E5 EMD 16-645-E7 EMD 8-645-E9B
EMD 12-645-E4C/F4B EMD 16-645-E5 EMD 20-645-E7 EMD 12-645-E9B

Beyond Repair and Overhaul for Your EMD Engine

At Neptunus, our asset reliability solutions prioritize forming enduring strategic alliances with our clients and giving more attention to long-term objectives than transient projects. Our strategy is customising solutions to meet their unique requirements to guarantee operational effectiveness in a way that is dependable, affordable, and long-lasting. We use the newest technology available to meet maintenance difficulties head-on.

Today, we’ve provided our clients with the following advantages thanks to the use of our unique dual-class (ABS and IRS) approved engine condition trend monitoring and our holistic oil quality management system which includes a real time oil condition monitoring sensor, continuous kidney loop oil filtration system :

  • Save anywhere between ~$20,000 and $60,000+ in overhaul costs for engines (approximately over 30% of overhaul costs).
  • Prevent unplanned downtime.
  • Improve fuel combustion efficiency. 
  • Reduce and offset carbon emissions to achieve your ESG goals.
  • Reduce your Scope 1 and Scope 3 emissions to achieve your decarbonization and ESG goals.
  • Better plan maintenance requirements, especially for assets located in inconvenient locations.

If you are looking to achieve similar goals for your company, book a “discovery call” with our experts to understand how we can help you.


In addition to our EMD engine services, we are an authorized service provider for niigata engine overhaul services and an independent service provider for CAT diesel engine repair services, offering a comprehensive suite of solutions for the marine and oil & gas industries. Our machinery repair and overhaul services cover a broad range, including main engine engine repair, propulsion system repairs, and genset repair. With our expert team, we guarantee top-notch service and reliability for all your machinery needs, from engines to propulsion systems and beyond.

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