N4.50

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Nannie Diesel

Kubota engine base

This Nanni Diesel 4 cylinder marine engine which incorporates the latest Kubota innovations, is particularly well suited for displacement vessels and sailing yachts.

Robust

Nanni Diesel has forged a strong partnership with Kubota. Kubota engines are known for their robust design and ensure great reliability and excellent longevity. Experience and know-how of the Nanni Diesel engineers resulted in the latest marinization developments which benefit the N4.40. The heat exchanger ensures an ideal temperature management of the engine even during heavy duty operation. Reliability and low maintenance cost are warranted by the timing gear and other solid designs of the robust Kubota engine base.

Environmental-Tri Vortex Combustion System (E-TVCS)

The N4.50 is equipped with the E-TVCS combustion and injection system which considerably reduces particulate emission and smoke while dramatically improving fuel efficiency.

Comfort of use

Its low rated speed of 2800 rpm coupled with powerful cylinder capacity gives the N4.50 ample power for all navigation conditions. A special coating of the pistons with molybdenum lowers friction and reduces engine vibrations resulting in supplementary comfort concerning the sound levels. The large choice of straight or angle down gearboxes, either mechanical or hydraulic, as well as a Sail Drive transmission allows you to fully utilize the significant torque of this engine by perfectly adapting it to your specific vessel.

Protecting the environment

The N4.50 complies with the most stringent emission regulations in the world: EU-RCD, US-EPA, BSO

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.

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Libby Hosking

We received the most extraordinary service, despite the shipyard being busy.
Communication was efficient, effective & with the our specific needs at the forefront.
All staff at Hume Marine were cooperative & helpful with backup & offers of support for us, with our new yacht was above & beyond.
We are extremely grateful to Ian & all his staff for the outstanding service & excellent workmanship at White Bay 6.
Cheerful, happy & willing to go the extra mile. Cannot thankyou enough!

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Alan Squires

Ian has looked after Sea Squire for many years including installation of a new Steyr diesel motor & a complete mechanical refit. He is always available & offers practical solutions to any issue.

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Joe Akacich

Ian and Scott Hume, along with Anthony (apprentice), recently completed a FULL service onboard our 45' support craft, "The UTE", owned and operated by Iain Murray, and the sailing Team "andoo Comanche". This full service was just a fantastic job, which high levels of enthusiasm and curiosity were on show. They were genuine in their actions, as well as very skilful, and had the whole of job completed in 5 hours, 2 x main engines, 2 x transmissions, all fuel filtration, all lub-oil filtration, seawater impellers, as well as cleaning of machinery space, as they completed. This was a great job, completed by good old-fashioned service, I/we will not use anyone else for our service reliability requirements.

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Peter Goode

Ian Hume has serviced my boat Palm Beach 38 for a number of years. I have always found him to be responsive and thorough. His knowledge of the Steyr engines and the PB have been very helpful when troubleshooting and fixing problems.

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Peter Somogyi

Ian and the guys at Hume Marine have looked after my Caribbean 26 for around 10 years. I literally ran up over 2000 hours of game fishing off Sydney and the boat always got back me back to marina without ever once having to it get towed.

Ian and his crew completely looked and after it, regular engine servicing, engine and stern drive repairs, antifouling, electrical and general boat maintenance.

Great guy, easy to deal with and offers a reasonable price.Thoroughly recommend Hume Marine to anyone who requires boat engine maintenance, repairs, antifouling on their petrol or diesel boats.

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Kile Carmichael

Hume Marine has been the best company so far I've used. Wouldn't use anybody else. Do yourself a favour and use ian for your next service.

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Christina Anthony

Ian and the team from Hume Marine have been looking after our boat since returning to Sydney Harbour in 2016.
As the recommended Sydney based Steyr engine expert Ian has demonstrated great knowledge and expertise in maintaining our vessel.

Not only has Ian  proven himself to be reliable and trustworthy his advice has always given us  great confidence in his work.
Christina and Sharon
Tally Ho

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Kevin Burton

Ian has been servicing my boats for 18 years now and I highly recommend him, he has always been trustworthy and reasonably priced.

Repower with Hume Marine today