Auxiliary Engine (Generator Set) · Auxiliary Engines
In marine applications requiring robust and reliable power generation, the 6LM25E-GS-60Hz stands out as a high-performance solution. This engine is part of the M25E-GS family, designed to deliver exceptional efficiency and durability. With a power output of 1890 kW at 900 RPM, it can also generate 1796 kW of electrical power at 60 Hz, making it suitable for both propulsion and generator sets on board ships. The engine’s L-configuration with six cylinders and a bore of 255 mm and stroke of 400 mm ensures smooth operation and high torque. It is capable of running on heavy fuel oil (HFO) or marine diesel oil (MDO), with optional equipment for HFO, enhancing its versatility in various operating conditions. The 6LM25E-GS-60Hz features a 4-stroke design and incorporates advanced technologies such as turbocharging and selective catalytic reduction (SCR) to meet IMO Tier III emissions standards. Regular maintenance is crucial; common issues include cylinder liner wear and overheating, which can be mitigated by inspecting the liners for wear and ensuring proper cooling system function. Other areas of concern are piston ring wear, fuel injector contamination, turbocharger damage from high exhaust backpressure, and valve timing problems, all of which require periodic checks to maintain optimal performance. The 6LM25E-GS-60Hz is actively in production, building on the legacy of the M25C series introduced in 1996, with significant improvements in component reduction and efficiency.
Every value below comes from the manufacturer datasheet or class-society record on file for this model.
Other models of the same equipment type, MaK (Caterpillar) first.
Free of charge — we forward your request to qualified suppliers for MaK (Caterpillar) equipment from our network of over 114,000 maritime companies.
Tell us what you need for this MaK (Caterpillar) 6LM25E-GS-60Hz — a part, a service call, a second opinion. Are you MaK (Caterpillar)? Claim this brand page.
Service engineer? Write the day report for this 6LM25E-GS-60Hz in OceanSphere Work — photos, hours and parts, as a PDF for the owner. Try it free for 14 days →
Yes. Specifications, documents and service notes for this model are readable without an account. An account adds saved searches and requests, nothing is taken away.
Yes. Tell us the manufacturer, the model and what you need — our desk asks the right suppliers from a network of over 114,000 companies and comes back with a quote or a sourcing plan.
Send us the nameplate or the correct value. We check it against the manufacturer datasheet or class-society record and update the page.