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NANNI - T4/T6/T8 Series

NANNI - The T4/T6/T8 series engines are based on Toyota's parent model, featuring mature design and compact structure. They deliver high power density with low fuel consumption, offer flexible and convenient installation, and operate reliably with minimal routine maintenance. This series provides dependable performance for various vessels including speedboats and official craft, delivering efficient power support for marine operations.

Related Submodels:
T4.205
T4.230
T4.270
6.420TDI
T8V.320
T8V.350
T8V.370
ModelkW/hpNumber of cylinders
T4.20575/100 – 149/2004
T4.230149/200 – 224/3004
T4.270149/200 – 224/3004
6.420TDI224/300 – 298/4006I
T8V.320224/300 – 298/4008
T8V.350224/300 – 298/4008
T8V.370224/300 – 298/4008

NANNI-T4/T6/T8 Series Engine Features


  • Based on Toyota parent model
  • Mature design with compact structure
  • High power density, low fuel consumption
  • Flexible installation
  • Requires only simple routine maintenance
  • Suitable for speedboats, executive boats, etc



NANNI-T4/T6/T8 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 drive, stern thruster, and jet pump (T4,205, T4,230, T4.270, T6.280, T6.300, 6.420TD1)
  • b. Stern drive and jet pump (T8V series)