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Marine Diesel Engines and Generators

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Marine Diesel Engines for Powerboats

NANNI designs and develops a comprehensive range of diesel engines for a wide range of powerboats, offering reliable power and optimal performance on the water.

The NANNI engine range is based on two of the leading engine manufacturers in the world, Toyota and Kubota.

Ranging from 200 to 365 HP

TOYOTA marine diesel engine

Developed from the robust foundation of Toyota automotive blocks, NANNi’s range of marine diesel engines delivers exceptional performance and reliability for a variety of powerboats. These engines, ranging from 200 to 370HP, are specifically designed for demanding applications including powerboats, sport boats, rigid-bottom inflatable boats, sport fishing vessels, and fast cruisers. Nanni offers a range of 8 models equipped with a common rail injection system and an air and exhaust circuit optimized for planning hulls.

Key Features:

Red and white sports boat planing across the water.

Proven Toyota Technology: Benefit from the renowned reliability and durability of Toyota engines, now optimised for the marine environment.

Powerful Performance: Experience immediate acceleration and impressive top speeds with these high-performance engines.

Compact Design: Ideal for a wide range of vessel sizes and configurations, allowing for easy installation.

Fuel Efficiency: Enjoy reduced fuel consumption and lower operating costs.

Reduced Noise and Emissions: For a more comfortable and enjoyable ride.

Engine to power output chart

Ranging from 200 to 320 HP

NANNI Toyota base Z6.300 sterndrive marine diesel engine

NANNI offers a range of diesel engines that are perfectly suited for sterndrive applications. They integrate seamlessly with popular sterndrive systems such as Mercury’s Mercruiser Bravo X drives. We also offer adaption packages to fit with existing sterndrives, and on commercial boats, NANNI can connect with Konrad drives. Combine the best aspects of inboard and outboard systems and enjoy optimal performance, reduced fuel consumption, and improved reliability.

Sterndrive engine installed in a Mustang 2400 powerboat

Key Features:

• Ease of installation.

• More efficient thrust under power.

• Power trim and steering.

• Excellent manoeuvrability.


Ranging from 10 to 135HP

NANNI Kubota-base marine diesel engine for powerboats

Designed for coastal and river cruisers, fishing boats, and trawlers, the NANNI Kubota range of marine diesel engines delivers big power and onboard comfort. These engines are marinised by Nanni to ensure smooth operation, long-lasting durability, and a quiet cruising experience.

Key Features:

White and baby blue fishing boat heading out of the bay, on the water.

Proven Kubota Technology: Built upon the foundation of high-quality and technologically advanced Kubota engine blocks, these engines provide a robust and reliable platform.

Exceptional Torque: Delivering high torque at low RPMs, these engines ensure effortless maneuverability and cruising.

Optimised for Comfort: Reduced vibrations and noise levels create a more enjoyable and relaxing boating experience.

Compact and Lightweight: Their optimised weight and compact dimensions make them ideal for a wide range of vessel sizes and configurations.

Environmental Compliance: Adhering to the most stringent environmental regulations, these engines minimise emissions.

NANNI range of Kubota marine diesel engines for powerboats