FAQ
SERVICE & SUPPORT
Yanmar Frequently Asked Questions
General
Yanmar is trusted worldwide for reliable, fuel-efficient, and durable marine engines. With over 100 years of experience, we combine advanced technology with a global service network to keep your vessel operating smoothly wherever you go.
Engine prices vary depending on the model, specifications, and application. For an accurate quotation, please contact your nearest Yanmar dealer or sales representative using our Dealer Locator or directly through this Contact Form.
Yanmar commercial marine engines are designed for a wide range of vessels, including fishing boats, ferries, workboats, tugs, offshore vessels, and cargo ships. Whatever the application, Yanmar offers reliable power solutions tailored to your needs.
Yanmar engines are supported by a global network of highly trained service partners who know your engine inside and out. Wherever you are, you can count on Yanmar and our partners to provide expert maintenance and support anytime, anywhere. Use our Partner Locator to find your nearest Yanmar partner.
Yes. Depending on the model, Yanmar marine engines are designed to meet the latest international standards, including IMO Tier II + III, EPA, and EU Stage V requirements. This ensures reliable performance while supporting cleaner oceans.
Choose a medium-speed Yanmar engine when you require 100% of the engine’s power to be available at all times, ideal for continuous, heavy-duty operations. A high-speed Yanmar engine is suitable when full power is needed only occasionally or for limited hours, such as in variable-load or intermittent-duty applications.
Propulsion Engines
Yanmar’s propulsion engines cover a wide power range to match different vessel types. Our medium-speed engines deliver from 375 kW up to 4500 kW, ideal for large commercial ships and heavy-duty operations. Our high-speed engines range from 25 kW to 1340 kW, providing fast, efficient power for smaller vessels such as workboats, ferries, and fishing boats.
Yanmar’s propulsion engine lineup includes both high-speed and medium-speed diesel models. High-speed engines are compact, lightweight, and ideal for vessels that need quick acceleration and efficiency, such as workboats and fishing boats. Medium-speed engines are built for larger vessels that operate for long hours and offer durability, lower fuel consumption, and smooth, continuous power.
Our engines use advanced combustion technology and optimised fuel systems to deliver maximum power with minimum fuel consumption. This means lower running costs, a more extended range between refuelling, and reduced environmental impact for operators.
With over 100 years of engineering heritage, Yanmar propulsion engines are built for longevity and dependable performance. Their rugged construction and proven design simplicity have earned the trust of operators worldwide, from ferries to commercial fishing vessels.
Yanmar propulsion engines are designed with simplicity and durability in mind, making routine maintenance straightforward. With support from our global network of trained service partners, you can rely on quick access to expertise and genuine parts, ensuring your vessel remains operational with minimal downtime.
Generator Sets
Yanmar marine generator sets are available in a wide power range to suit different vessel needs. Our medium-speed gensets deliver from 180 kWe to 4600 kWe, making them ideal for large commercial vessels and continuous operation. Our high-speed gensets cover the 24 kWe to 1000 kWe range, providing flexible, efficient power for smaller vessels and auxiliary applications.
Yanmar medium-speed auxiliary engines are designed for outstanding fuel efficiency, helping you reduce operating costs while meeting today’s strict environmental standards. Their optimised combustion and advanced fuel systems ensure reliable performance with lower fuel consumption, even during long hours of continuous operation.
Yanmar medium-speed generator sets are designed to meet the world’s leading marine emission and safety standards. Depending on the model and application, they comply with IMO Tier II and Tier III and regional regulations such as EPA and EU Stage V.
Genuine Yanmar spare parts are available quickly and globally through our authorised service and dealer network. Wherever your vessel operates, you can rely on Yanmar and our partners to provide the right parts and support to keep you running with minimal downtime.
Yanmar experts are available to help design solutions tailored to your vessel’s specific needs. Whether you require a custom generator set configuration or a complete integrated system, our team will work closely with you to find the best fit. Reach out through our Contact Form or contact your local Yanmar partner to start the conversation.
Life Cycle Value
One of Yanmar’s key advantages is our extended time between overhauls. Known for exceptional engine quality and reliability, Yanmar engines offer longer part life spans and reduced maintenance frequency, helping to lower your total life cycle costs significantly.
Yanmar engines achieve longer intervals between overhauls because we use only high-quality, wear-resistant materials and apply strict quality control and testing procedures. This ensures exceptional durability and reliability over the engine’s lifetime.
Fuel consumption varies based on your vessel’s operational profile, including load, speed, and usage patterns. Because of this, there’s no one-size-fits-all figure. For accurate guidance tailored to your specific setup, we recommend contacting your local Yanmar sales representative.
After Service
Every new Yanmar engine is delivered with multiple copies of the parts and service manuals. If yours are lost or you’re not the first owner, you can request replacements by contacting your nearest Yanmar office.
You can purchase genuine Yanmar parts from any certified Yanmar Partner within our network. Provide your engine type and serial number to ensure you receive the correct parts.
Maintenance costs can vary depending on your vessel’s operational profile, fuel consumption, and usage conditions. For a tailored estimate, we recommend contacting your local Yanmar partner.