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NANNI - N2/N3/N4 Series

The NANNI-N2/N3/N4 series engines, based on Kubota's parent model, feature low-speed operation characteristics that deliver outstanding fuel economy. Their compact design ensures flexible installation, facilitating retrofitting for various vessel types and significantly reducing installation costs. Daily maintenance requirements are minimal, substantially reducing operational and maintenance expenses. Tailored specifically for lifeboats, sailboats, and various recreational vessels, this series balances reliability with high efficiency, making it an ideal marine power solution.

Related Submodels:
N2.10
N2.14
N3.21
N3.30
N4.38
N4.40
N4.50
N4.65
N4.80
N4.115
N4.140
ModelkW/hpNumber of cylinders
N2.107/10 – 75/1002
N2.147/10 – 75/1002
N3.217/10 – 75/1003
N3.307/10 – 75/1003
N4.387/10 – 75/1004
N4.407/10 – 75/1004
N4.507/10 – 75/1004
N4.657/10 – 75/1004
N4.807/10 – 75/1004
N4.11575/100 – 149/2004
N4.14075/100 – 149/2004

Features of the NANNI N2/N3/N4 Series Engines


  • Kubota Base Engine
  • Low RPM, Low Fuel Consumption
  • Flexible Installation, Easy Retrofit
  • Lower Installation Costs
  • Requires Only Simple Daily Maintenance
  • Suitable for Lifeboats, Sailboats, and Pleasure Craft



NANNI - N2/N3/N4 Series Technical Specifications



Supplementary Notes:

M1~M6 Power Rating Specifications:

  • M1: Refers to 24-hour operation, with 65% of the time at full load
  • M2: Refers to 5000 hours of annual operation, with 65% of the time at full load
  • M3: Refers to 4,000 annual operating hours, with 50% at full load
  • M4: Refers to 3,000 annual operating hours, with 40% at full load
  • M5: Refers to 1,000 annual operating hours, with 35% at full load
  • M6: Refers to 500 annual operating hours, with 35% at full load

Emission Standard Specifications:

  • 1：IMO MARPOL Annex VI
  • 2：RCD2 2013/53/EU
  • 3：NRMM97/68/EC
  • 4：EPATier3
  • 5：BSO 2
  • 6：EU Stage lllA

Propulsion System Specifications:

  • a. Stern shaft propulsion and sailboat power (N2 series, N3 series, N4.38, N4.40, N4.50, N4.65, N4.80)
  • b. Stern shaft propulsion (N4.80, N4.100, N4.115, N4.140)