Products
Marine propulsion engines and generator sets
Fuel-Efficient, Reliable Power Solutions

Proven Power for Demanding Maritime Conditions
With over 100 years of expertise in marine propulsion, Yanmar delivers purpose-built commercial engines known for their industry-leading reliability, fuel efficiency, and durability. Our propulsion and auxiliary engines are engineered to withstand the harshest sea conditions while maintaining optimal performance over time.
From sustainable technology to fuel-efficient systems and reliable generator sets, Yanmar solutions establish new standards in safe, powerful, and efficient maritime operations—ensuring vessels remain operational, even in the most challenging environments.

POWER RANGE: 374 ~ 4500 kW
Yanmar propulsion engines
Proven in diverse marine applications worldwide, Yanmar commercial marine engines are a trusted choice for reliability and performance.
Our expertise ensures tailored solutions for every application, supporting maritime success globally.
POWER RANGE: 180 ~ 4600 kWe
Yanmar auxiliary engines
Yanmar’s auxiliary diesel engines, which output 180–4600 kWe, are trusted worldwide for their excellent fuel consumption, durability, and reliability during long voyages.
We offer a full portfolio of varied-speed auxiliary engines designed for optimum combustion and low emissions, ensuring you can confidently handle all maritime challenges.


Questions and Support
Feel free to contact us with any questions about our propulsion engines.
FAQ’s about Yanmar marine and auxiliary engines
Yanmar engines are commonly utilized in a wide range of marine vessels, such as fishing boats, workboats, pleasure craft, and commercial vessels.
The lifespan of a Yanmar engine depends on several factors, including maintenance, usage, and operating conditions. However, Yanmar engines are known for their long lifespan and reliable performance with proper care and maintenance.
Regular maintenance is essential to ensure a Yanmar engine’s optimal performance and longevity. This involves routine tasks such as oil and filter changes, air filter replacements, and inspecting and servicing various engine components like fuel and cooling systems. Maintenance intervals and procedures may vary based on the specific model and application. Following the manufacturer’s recommended maintenance schedule and guidelines is crucial.