CAT Engine Repair and Overhaul Services

CAT Engine Repair and Overhaul Services

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Neptunus offers independent CAT engine repair services, backed by 28 years of industry expertise. Our team’s in-depth knowledge of Caterpillar’s engineering excellence guarantees top-tier solutions for optimal engine performance.

With a team of 27+ highly skilled engineers, including 6+ dedicated Caterpillar engine experts, Neptunus is well-equipped to handle even the most complex CAT marine engine overhaul scenarios. Our engineers offer on-site assistance for overhauls, fault diagnosis, commissioning, and alignments, both offshore and onshore, or can provide repair services at our in-house workshop in Navi Mumbai. Additionally, we stand behind our work with a 6-month warranty on completed engine repairs.

Our rich portfolio encompasses over 300 successful Caterpillar engine service projects, solidifying our reputation as a trusted partner for businesses and organizations across India, South Asia, the Middle East, Europe, and Africa. With our strategic presence in major Indian dry-docking regions like Mumbai, Cochin, Goa, Kolkata, Chennai, Visakhapatnam, and Haldia, we offer convenient and accessible services to our customers across the country.

Get the Best Quote for Your Cat Engine Repair Requirements

Challenges in CAT Engine Repair

  • Lack of Skilled Manpower: Finding qualified technicians with in-depth knowledge of CAT engines can be a significant hurdle.
  • Availability of Manpower: Scheduling cat engine repairs during crucial operational windows requires readily available specialists.
  • Technical Expertise for Scoping Work: Accurately assessing the repair scope for CAT engines is essential for efficient project execution and cost optimization.
  • Rapid Turnaround: Minimizing downtime is paramount to maintaining operational continuity in cat engines.
  • Cost-Effective Solutions for Repairs and Spare Parts: Balancing the need for high-quality CAT diesel engine repair with budget constraints can be a delicate balance, requiring strategic cost optimization strategies.
  • Ensuring Optimal Performance and Reliability after Repairs: Comprehensive testing and quality assurance measures are necessary to guarantee that repaired engines perform optimally and maintain their reliability, adding to the complexity of the repair process.

Why Choose Us for CAT Engine Repair and Maintenance Services?


With two decades of service experience Read more


Apart from our on-site overhaul services Read more

Genuine and
Optimized Spare
Parts List

We offer genuine Caterpillar spare parts Read more


Our streamlined processes and efficient Read more

Utilization of

We utilize the most advanced tools and Read more

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Maintenance Service Expertise with CAT Engine Models

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

Beyond Repair and Overhaul for Your CAT Engine

At Neptunus, we prioritize building long-term strategic partnerships with our clients rather than just completing short-term projects. Our asset reliability solution involves providing tailored solutions by deeply understanding their needs and identifying our roles in achieving their larger operational efficiency goals. We address maintenance challenges using the latest and most advanced technology at our disposal, ensuring cost-effectiveness, reliability, and sustainability.

Today, through the use of our proprietary, dual-class (ABS and IRS) approved engine monitoring system and our comprehensive in-house Oil quality management solution that includes real-time oil condition monitoring sensor and in-depth kidney loop filtration system , we’ve delivered significant benefits to our clients:

  • Save approximately between $20,000 and $60,000+ in engine overhaul costs (representing over 30% savings).
  • Prevent unplanned downtime, ensuring continuous operations.
  • Enhance fuel combustion efficiency, leading to cost savings and environmental benefits.
  • Reduce your Scope 1 and Scope 3 emissions to achieve your decarbonization and ESG goals.
  • Comply with the IMO’s EEXI Regulation effortlessly.
  • Improve maintenance planning for assets, particularly those in challenging locations.

If your company aims to achieve similar results and optimize your operations, schedule a “discovery call” with our experts to explore how we can assist you on your journey.

Get a Quick Quote for Your Cat Engine Repair Requirements

In addition to our Cat engine services, we specialize in niigata diesel engine repair , providing a complete suite of solutions for the marine industry. Our machine repair services encompass a wide range, including ship niigata engine repair propulsion systems, and genset repair. With our expert team, we ensure top-notch service and reliability for all your machinery needs, from engines to propulsion systems and more.

Other Engine Repair and Overhaul Services

Get The Best Quote For Your CAT Engine Repair & Overhaul Requirements