CAT Engine Maintenance Repair and Overhaul Services

CAT Engine Maintenance Repair and Overhaul Services

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Specializing in CAT engine repair and overhaul within the marine and oil and gas industries, Neptunus stands as a trusted leader in delivering service excellence. We serve as a reliable CAT diesel engine service partner for leading rig and vessel owners and managers working in India, the Middle East, and Africa. 

With a team of over 27 skilled engineers, including 6+ CAT engine repair experts, we deliver services in strict adherence to OEM manual guidance, ensuring unparalleled quality. With a rich portfolio of having worked on 300+ Caterpillar engine services, we recognized our cost-saving initiatives, which increase the reliability of CAT engines, a robust support system, and a customer-centric approach. 

Backed by technical expertise, Neptunus ensures its service team has access to all necessary special tools and manuals while also leveraging the knowledge of CAT engine experts stationed at dealer locations. Our mission, “Change the way maintenance is done in the industry,” underscores our dedication to revolutionizing maintenance practices, making us the preferred choice for enhancing and maintaining CAT engine performance in demanding operational environments.

Why Choose Us for CAT Engine Repair and Maintenance Services?

Significant
Downtime
Savings

Our Cat engine maintenance services Read more

Remote
Support
Excellence

Our Cat engine specialists efficiently Read more

Genuine and Optimized Spare Parts List

We provide authentic CAT Read more

Customer
Delight
at the Core

At Neptunus, customer delight is Read more

Peace
of
Mind

Our experienced team handles all Read more

Utilization of Advanced Technology

We worked with the latest dual- certified Read more

Maintenance Service Expertise with CAT Engine Models

C18 and C32 series CAT 3000 series CAT 3200 series CAT 3500 series

Would You Be Interested In Customized Cat Engine Overhaul Services?

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Cat Engine MRO Services

CAT Engine Repair

We provide expert repair services for CAT engines, identifying issues and implementing precise solutions. Our experienced technicians utilize advanced diagnostics to pinpoint problems, offering timely and effective repairs to minimize operational disruptions.

CAT Engine Overhaul

We excel in comprehensive top and major overhauls for CAT engines, ensuring optimal performance of engines. Our CAT engine specialists inspect and refurbish engines, addressing critical components to enhance efficiency and reliability.

CAT Engine Inspection

Our CAT engine inspection services go beyond the ordinary. We employ advanced diagnostic and inspection techniques, ensuring a thorough assessment of your engine's condition with help of our ABS and IRS class certified engine condition monitoring system

CAT Engine Troubleshooting

In CAT 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

The machines reliability is an important concept for ensuring smooth operation and increased longevity of equipment. Machine maintenance services (repair, overhaul) is one of the best way to make sure machine’s reliability is maintained.

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 they also reduce the danger of environmental problems and ensure the marine industry’s sustainability.

As a reliable CAT engine maintenance service supplier, we ensure peak performance through maintenance and overhaul. Our experience ensures that CAT engines are in the finest condition, reducing downtime and increasing the efficiency of operation for our clients.

In addition to CAT Engines services, we also offer end-to-end maintenance services for other reputable marine engine brands listed below.

  • MRO Services for Niigata Engines:

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:

Being an OEM-authorized EMD diesel repairr service provider, we excel at providing comprehensive maintenance, repair, and overhaul (MRO) services tailored specifically for EMD marine engines.

  • Yanmar Engine Maintenance Services:

We offer yanmar engine repair service and we are a trusted independent service provider dedicated to enhancing the reliability and performance of your engine through expert Yanmar engine repair services.

  • MAN Engine Maintenance Services:

Neptunus stands out as a reputable independent service provider offering top-tier man engine overhaul repair and maintenance services, renowned for our unwavering commitment to quality and reliability.


In the maritime sector, the varied machinery in use demands tailored maintenance solutions to uphold operational integrity. Neptunus understands the importance of this personalized approach in ensuring peak performance and durability of marine equipment. Leveraging our expertise and industry-leading practices, we not only ensure the reliability of these assets but also mitigate the potential risks associated with unexpected downtime.


Our wide array of ship machinery repair services , detailed below, is customized to meet the diverse needs of marine equipment:

  • Marine Diesel Engine Repair Services:

Maintaining marine diesel engines is crucial for reliability. Our swift engine repair addresses issues promptly, preventing breakdowns and ensuring optimal performance at sea.

  • Marine Diesel Engine Overhaul Services:

Overhauling diesel engines guarantees longevity and performance. Our services reduce breakdown risks, minimizing repair costs while bolstering asset reliability.

  • Gearbox Maintenance Services in the Marine:

Neptunus’ gearbox maintenance services minimize wear and tear, mitigate component failure risks, and enhance marine equipment efficiency and lifespan, ensuring overall asset reliability.

  • Marine Clutch Maintenance Services:

Regular marine clutch maintenance ensures smooth operation, preventing premature failure. This extends the lifespan and reliability of critical propulsion systems.

  • Bow-Thruster Maintenance and Repair Services:

On-time bow thruster repairs and maintenance optimize functionality and decrease the likelihood of downtime.


Aside from maritime maintenance, we also specialize in marine diesel engine spare parts for major brands such as CAT, EMD, and Niigata.
As a genuine cat engine parts supplier, we provide genuine Cat engine parts. Our large inventory, which includes CAT and other engine spare parts, allows us to meet the diverse needs of our customers. We take great pride in offering authentic engine spare parts to our maritime clients at competitive prices, ensuring both quality and affordability.