Marine Diesel Engine Repair and Service
Full-service marine diesel engine repair, maintenance, and repower solutions for all diesel powerplants and generators.
Our Diesel Work
Fully Mobile Marine Mechanics
We make it easy and come to you!
We Service All Boat Makes / Years / Models
Full service boat mechanics for any and all inboard & outboard engines
Trusted and Reliable Service
Be confident knowing you are being serviced by the best boat mechanics in all of Florida
Comprehensive Marine Diesel Services
At Poseidon Marine, we understand that a well-maintained diesel engine is the backbone of any vessel—whether it’s a sportfisher, yacht, or commercial boat—our diesel specialists provide turnkey solutions throughout Florida’s coastal regions. Utilizing advanced computerized diagnostics, we swiftly identify issues via engine codes and performance metrics, guiding precise repairs and maintenance,
Diesel brands we work with:
Cummins, Caterpillar, MTU, MAN, Volvo Penta, Yanmar, John Deere, Perkins, Kohler, Onan, Scania, Detroit Diesel, Baudouin
Diesel Diagnostics & Code Reading
We use dealer-level ECM scanners to read and clear fault codes for precise troubleshooting and repairs.
Preventative Maintenance & Service Intervals
We follow manufacturer-specified schedules for oil, filter, and component changes to stop issues before they start.
Turbocharger & Injector Repairs
We rebuild and balance turbochargers and overhaul injectors to restore correct boost pressure and fuel delivery.
Florida's #1 Mobile Marine Mechanic
Marine Diesel Maintenance & Repair
Poseidon Marine offers end-to-end diesel solutions—combining authorized OEM procedures with expert craftsmanship to extend engine life and reduce operating costs. Our mobile service trucks are fully stocked, enabling us to perform on-site overhauls, part replacements, and emergency repairs, keeping you underway with minimal disruption
Our services include:
- Visual Engine Room Inspections
- Engine Oil & Filter Service
- Fuel Filter & Water Separator Replacement
- Cooling System Inspection & Flush
- Turbocharger Servicing & Replacement
- Valve Adjustment & Cylinder Head Work
- Fuel Injector Testing & Calibration
- Heat Exchanger & Exhaust Manifold Cleaning
- Transmission & Shaft Seal Replacements
- Anode & Corrosion Control Services
- Belt, Hose & Piping Replacements
- Computerized Leak-Down & Compression Testing
- Electrical System Checks (alternators, starters)
- Vibration & Noise Analysis
- Emergency Dockside Repairs
- Engine Repower & Major Overhauls
Servicing the ENTIRE State of Florida!
Looking for more? Check out our other boat repair services!
Why Choose Poseidon Marine for Marine Diesel Repair?
Unrivaled Quality & Expertise Across Florida
Poseidon Marine stands as Florida’s premier boat mechanic service, renowned in Florida for delivering superior boat engine repair and comprehensive marine services. Our team of fully certified, high-quality technicians is trained to work on all boat makes, models, and years—ensuring every repair meets the highest standards. We not only fix problems but provide lasting solutions that keep your vessel running smoothly, making us the best in the region.
Guaranteed Workmanship & Transparent Pricing
We back our service with a solid warranty on every repair, reinforcing our commitment to quality and customer satisfaction. Our pricing is fully transparent—charged by the hour plus parts—so you never face unexpected fees. This clear pricing model, combined with our exceptional workmanship, sets us apart from less reliable, sketchy repair shops in Florida.
24/7 Emergency Support & Fully Mobile Service
With our 24/7 emergency support, Poseidon Marine is always ready when you need us most. Our mobile service units come directly to your location—whether at your dock, marina, or on the water—ensuring prompt, efficient repairs. Serving the entire state of Florida, we deliver on-site expertise that keeps your boat operational and safe.
Trustworthy, Reliable, and Customer-Focused
At Poseidon Marine, trust and reliability are the cornerstones of our brand. We address the industry’s common pain points by offering dependable, top-quality repairs and exceptional customer care. Our friendly, professional team is dedicated to making your experience as seamless as possible—so you can rest assured that your vessel is in the most capable hands in all of Florida.
Poseidon Marine’s factory-trained diesel technicians bring decades of experience and access to genuine OEM parts, ensuring every repair meets manufacturer specifications. Our transparent “hour-plus-parts” pricing, robust workmanship warranties, and rapid mobile response guarantee dependable service—so your diesel engine runs smoothly and safely across Florida’s waterways. Trust us for diesel care that delivers power, efficiency, and peace of mind.
