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Expert Hands, Secure Journeys.

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About SEIKOH

SEIKOH CO., LTD. is a global technical partner of YANMAR, the world’s largest marine engine brand.
We specialize in the sales, maintenance, and consulting of marine engines and generators, as well as providing customer training and technical support.


Every voyage you embark on is a journey filled with challenges and hope. SEIKOH is your silent guardian, ensuring your vessel departs smoothly and returns safely.
We focus on training top marine technicians, delivering precise technical support to resolve engine issues and emergencies, giving every vessel full confidence at sea.
We offer 24/7 maintenance services year-round, upholding transparent pricing with professionalism and integrity—your most reliable support on every voyage.


SEIKOH, safeguarding every voyager—for a safe departure and a secure return

Brand Creed
Loving oneself comes before loving others.
Self-care begins
Loving oneself comes before loving others.
Only by protecting yourself can you truly protect others.
Prioritizing your own safety enables you to provide the most reliable maintenance service.
Thoroughness is a virtue.
Accuracy Counts
Thoroughness is a virtue.
Professionalism comes from uncompromising attention to detail.
By identifying root causes, we ensure long-term and stable operation of equipment.
Live long, learn long.
Forever learning
Live long, learn long.
As technology advances, maintenance standards must evolve accordingly.
Only through continuous learning can we bring unwavering confidence to every sea journey.
Expertise speaks.
Expertise Speaks
Expertise speaks.
True trust stems from professionalism and integrity.
We approach every detail with honesty. Each safe departure is the best proof of quality and integrity.
News
07.18.2025
Brand News｜Reigniting Momentum, Leading the Future: SEIKOH's New Plant Officially Opens!

SEIKOH has officially inaugurated its new plant and office in Kaohsiung—marking a new chapter in its 30-year legacy. With a sleek ceremony and thoughtfully designed space, the company embodies professionalism, stability, and trust.

More>
06.03.2025
Brand News｜Announcing Our New Mission and Core Values

The new value proposition encompasses four key pillars: Safety & Discipline, Precision & Thoroughness, Lifelong Learning, and Integrity & Expertise—symbolizing SEIKOH’s deep commitment to the sustainable development of the maritime industry.

More>
04.23.2025
Common Issues and Solutions｜Scavenging Air Temperature and Pressure Abnormalities

Scavenging efficiency directly affects engine power, fuel efficiency, and emissions. Therefore, both excessively high scavenging air temperature and excessively low pressure are issues that require immediate attention and resolution. In the following sections, we will provide a more in-depth analysis and explanation of the causes of failures and countermeasures you provided.

More>
03.27.2025
Common Issues and Solutions｜Flywheel Oil Slinging

During operation, flywheel oil slinging can lead to abnormal lubricant consumption, potentially causing a decline in equipment performance and even affecting normal mechanical operation. Therefore, understanding the primary causes of this issue and implementing appropriate countermeasures is crucial. Below is a detailed analysis of common problems and corresponding solutions.

More>
02.27.2025
Common Issues and Solutions｜Air Motor-Driven Engine Startup Failures

This document will provide an in-depth analysis of two common issues: "Activation of Internal Safety Interlock Mechanism" and "Abnormal Fuel Valve Startup Mechanism", along with specific diagnostic and response measures to ensure smooth equipment operation.

More>
12.13.2024
Employer Brand｜Seikoh’s Year-End Banquet Warms Hearts and Inspires a Bright Future!

This is a grand event for the Seikoh team and a symbolic new beginning. In the new year, Seikoh will continue to stay true to its mission, working hand in hand with every employee to embrace exciting challenges and opportunities ahead.

More>
10.22.2024
New Product｜YANMAR Common Rail 6GY135W

Common Rail 6GY135W. This engine not only inherits YANMAR's consistent reliability and durability but also reaches new heights in performance, environmental friendliness, and economy, opening a new chapter for the marine industry.

More>
10.04.2024
Brand event｜SEIKOH and YANMAR, lead a new era of marine power.

Under the theme of "Smart Ocean, Sustainable Power," Seikoh presented Yanmar's leading marine power technologies at this year's exhibition. In particular, marine engines equipped with the latest technology can significantly reduce fuel consumption and minimize pollution to the marine environment. Seikoh believes that only by combining smart technology with the concept of sustainable development can a brighter future be created for Taiwan's fishing industry.

More>
08.26.2024
Brend event｜2024 Taiwan International Fisheries Exhibition

More>
01 / 01
07.18.2025
Brand News｜Reigniting Momentum, Leading the Future: SEIKOH's New Plant Officially Opens!

SEIKOH has officially inaugurated its new plant and office in Kaohsiung—marking a new chapter in its 30-year legacy. With a sleek ceremony and thoughtfully designed space, the company embodies professionalism, stability, and trust.

More>
06.03.2025
Brand News｜Announcing Our New Mission and Core Values

The new value proposition encompasses four key pillars: Safety & Discipline, Precision & Thoroughness, Lifelong Learning, and Integrity & Expertise—symbolizing SEIKOH’s deep commitment to the sustainable development of the maritime industry.

More>
04.23.2025
Common Issues and Solutions｜Scavenging Air Temperature and Pressure Abnormalities

Scavenging efficiency directly affects engine power, fuel efficiency, and emissions. Therefore, both excessively high scavenging air temperature and excessively low pressure are issues that require immediate attention and resolution. In the following sections, we will provide a more in-depth analysis and explanation of the causes of failures and countermeasures you provided.

More>
03.27.2025
Common Issues and Solutions｜Flywheel Oil Slinging

During operation, flywheel oil slinging can lead to abnormal lubricant consumption, potentially causing a decline in equipment performance and even affecting normal mechanical operation. Therefore, understanding the primary causes of this issue and implementing appropriate countermeasures is crucial. Below is a detailed analysis of common problems and corresponding solutions.

More>
02.27.2025
Common Issues and Solutions｜Air Motor-Driven Engine Startup Failures

This document will provide an in-depth analysis of two common issues: "Activation of Internal Safety Interlock Mechanism" and "Abnormal Fuel Valve Startup Mechanism", along with specific diagnostic and response measures to ensure smooth equipment operation.

More>
12.13.2024
Employer Brand｜Seikoh’s Year-End Banquet Warms Hearts and Inspires a Bright Future!

This is a grand event for the Seikoh team and a symbolic new beginning. In the new year, Seikoh will continue to stay true to its mission, working hand in hand with every employee to embrace exciting challenges and opportunities ahead.

More>
10.22.2024
New Product｜YANMAR Common Rail 6GY135W

Common Rail 6GY135W. This engine not only inherits YANMAR's consistent reliability and durability but also reaches new heights in performance, environmental friendliness, and economy, opening a new chapter for the marine industry.

More>
10.04.2024
Brand event｜SEIKOH and YANMAR, lead a new era of marine power.

Under the theme of "Smart Ocean, Sustainable Power," Seikoh presented Yanmar's leading marine power technologies at this year's exhibition. In particular, marine engines equipped with the latest technology can significantly reduce fuel consumption and minimize pollution to the marine environment. Seikoh believes that only by combining smart technology with the concept of sustainable development can a brighter future be created for Taiwan's fishing industry.

More>
08.26.2024
Brend event｜2024 Taiwan International Fisheries Exhibition

More>
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Testimonials
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Join Our Team

At SEIKOH, we are not only experts in marine engines and generators — we are also guardians of maritime safety.
Here, we uphold excellence in technology, integrity in service, and teamwork as our core values, continuously innovating to safeguard every voyage.

We are looking for passionate and challenge-ready individuals to join our mission-driven team.
Whether you are a technical expert or a management professional, at SEIKOH you’ll collaborate with top industry partners to shape the future, receive professional training, refine your skills, and work together to ensure safety at sea.

If you’re eager to grow in a dynamic, opportunity-rich environment and support global voyagers with a strong foundation, we welcome you to embark on this journey with us — toward limitless possibilities.

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