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A Reputation for Excellence
Google review excerpt
★★★★★“Excellent communication from Luis and Andres throughout the entire process. The technicians did a fantastic job servicing our MTU engines and Kohler generators, demonstrating professionalism and attention to detail.”
— Sayonara Sayonara
Google review excerpt
★★★★★“I have finally found a reliable company to service my Fischer Panda generator. Sail Onyx was quick and professional and appreciate all of their help.”
— Lee Rumley
Google review excerpt
★★★★★“We didn’t have an ac, generator and my sea keeper was shutting off. … I wish I knew onyx earlier, I would save time, money and a lot of energy. I recommend onyx and will keep using them in the future.”
— Ori Eliaz
We prioritize OEM or manufacturer-specified generator parts to support safe operation, correct fit, and long-term reliability. Any alternative is presented with the reason for its use and requires owner approval.
Many generator diagnostics, maintenance tasks, cooling-system services, and accessible repairs can be completed onboard. Removal, replacement, major exhaust work, or installations requiring specialized access may need yard coordination.
A dedicated point of contact coordinates vessel access, equipment information, estimates, parts, and service documentation from the first inspection through final operating checks.
Dockside generator diagnostics, power-system checks, and completed service details.
A dockside power problem, handled with focused diagnostics and minimal disruption.
Marine brands and equipment we commonly service or work with.
Simple, efficient, and designed for your convenience
Send the make, model, serial number, engine hours, controller photo, displayed fault code, recent service history, and a description of the load or operating condition when the problem appears.
Yes. Describe the voltage or frequency behavior and the equipment affected so the request can be reviewed for the appropriate diagnostic and load-testing scope.
Sail Onyx service content includes Kohler, Cummins Onan, Westerbeke, Northern Lights, Fischer Panda, and Phasor equipment. Exact capability is confirmed from the model, serial number, and requested work.
Yes. Inspection findings can support a repair, replacement, or installation decision. The proposed scope and estimate are reviewed before approved work begins.
This page is specifically for generators installed on boats and yachts. Residential, standby, portable, RV, and motorhome generators are outside this landing page’s service intent.
See our FAQ for more information.