N3.21

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Nannie Diesel

Kubota Engine Base

The latest technologies employed by Kubota resulted in a robust design for the N3.21. The industrial engine base is proven in even the most difficult conditions.

Reliability and Comfort

The NANNI N3.21 builds on its established reputation for reliability with new marinization enhancements. The latest generation heat exchanger improves temperature regulation, especially beneficial when a boiler is installed. This improved system further extends the N3.21’s lifespan and overall dependability. Additionally, special molybdenum-coated pistons minimise friction and reduce engine vibrations, resulting in quieter operation for enhanced onboard comfort.

Ease of Installation

Repowering your boat is a breeze! The N3.21 engine is designed to be incredibly versatile, offering multiple installation options suitable for a wide range of boats. Our specially designed installation kits ensure the N3.21 integrates seamlessly into your existing engine compartment, minimising hassle and saving you time.

Clean Power Supply

The NANNI N3.21 prioritises both environmental responsibility and performance. This engine achieves compliance with the latest emission regulations (EU-RCD, US-EPA, and BSO) without the need for electronic equipment.

The secret lies in the advanced E-TVCS (Environmental-Tri Vortex Combustion System). This innovative system significantly reduces particulate emissions and smoke, while achieving impressive improvements in fuel consumption. The N3.21 lets you enjoy cleaner operation without sacrificing power or efficiency.

Get in Touch

Get in touch with Hume Marine today. From detailed engine repairs to comprehensive maintenance, our team is ready to ensure your vessel is in top condition.

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Hear From Our Clients

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Michael Tohey

In 45 years of maintaining our Classic Formula 233......Ian, Scott, Patrick and the team from HUME MARINE are by far the best Marine Engineers we have ever encountered.

Our recent re-powering project involved far more than a standard engine installation, using many custom parts and applying bespoke engineering.  Only an organisation like HUME MARINE with the experience and expertise we required was capable of thinking "outside the box" to make it all work.

And work it did!  Thank you to Ian and his team for making our dream Formula 233 become a reality.

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Fishfinder Charters - Davis

Fishfinder Charters have  known Hume Marine for 20 years plus, Ian and his team conduct there business with total professionalism and reliability, All jobs are treated with care, good diligence and consideration toward time and cost.

He has recently installed our new Cummins main engine to Fishfinder! beautiful Job! every detail was checked comprehensively and double checked to meet survey requirements to conform with safety and reliability. We have no issues with recommending Hume Marine to service your marine mechanical needs.

Repower with Hume Marine today