Marine Diesel Engines and Generators

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Nanni Marine Diesel Engine N4.65

59 hp

Kubota engine base

Originating from the latest generation diesel engines developed by Kubota, the N4.60 marine engine is regarded as an ideal solution for sailing yachts as well as sport fishing boats. It benefits from the experience of the Nanni Diesel engineering team in terms of marinization as well as the robustness of the Kubota industrial engine base.


Powerful, robust and comfortable, the N4.60 perfectly captures these essential qualities in its engine category. Its low rpm and significant torque allows you to reach cruising speeds at lower rpm levels, considerably improving the sound comfort and onboard vibrations. These qualities allow it if necessary to drive a propeller with a sizable diameter, which is more efficient in turbulent seas and more practical while manoeuvring in port.

Saving space and adaptable

The dimensions and the weight of a N4.60 have been optimised to obtain a good power to weight ratio. This very compact engine eases installation. The design of the engine mounts, as well as a large choice of gearboxes simplifies repowering of your boat.

Protecting the environment

The N4.60 complies with the most stringent emission regulations in the world: EU-RCD, US-EPA, BSO Its SOLAS certification reflects quality and reliability.

Technical Specifications

  • Engine Base: Kubota
  • Rated Power (kW/HP): 43.4 / 59
  • Rated RPM: 2800
  • Displacement (cm³/in³): 2434 / 148.5
  • Number of Cyliners: 4 in line
  • Bore and Stroke (mm/in): 87 x 102.4 / 3.43 x 4.03
  • Compression Ratio: 23:1
  • Intake: Turbocharged

Engine Specifications

  • Dry Weight with Transmission (kg/lb): 241 / 531.31
  • Maximum Install Angle: 7° (dynamic)
  • Exhaust Hose Diameter (mm/in): 60 / 1.57
  • Fuel Hose Diameter (mm/in): 8 / 0.31
  • Sea Water Hose Diameter (mm/in): 32 / 1.25
  • Transmission: Mechanical Shaft, Hydraulic Shaft
  • Cooling: Closed with Heat Exchanger
  • Certifications: EPA, BSO, SAV, EU-RCD

Standard Equipment

  • Fresh Water Cooled Exhaust Manifold
  • Exhaust Elbow
  • 4m Electrical Extension Harness
  • Fuel Filter
  • Oil Filter
  • Mecanical Gearbox
  • Sea Water Pump

Optional Equipment

  • Keel Cooling Adaptation
  • Complete Propulsion Kit
  • Thottle and Shift Controls
  • Flybridge Panel and Extension Harness
  • Bi-Pole Electrical System
  • Water Boiler System
  • Complete Fuel System
  • Complete Exhaust System