N4.50 SD
Ph: 02 9319 5222
50 hp
Specifications
Base: Kubota
Max power: 50 hp (36,8 kw)
RPM at max output: 2800 rpm
Displacement: 2197 cc (134,08 ci)
Number of cylinders: 4 in line
Bore/stroke: 87 x 92,4 mm ( 3,42", 3,64")
Compression ratio: 21/1
Injection: Indirect injection (E-TVCS)
Aspiration: Atmospheric
Cooling: Heat exchanger
Alternator: 12V / 100 Amps
Inst. panel: C4
Gearbox: Technodrive SP60, 2.15R
Weight (incl. Gearbox): 263 Kg
Diameters
Exhaust: 60 mm ( 3,15")
Fuel Pipe: 8 m, (0,31")
Seawater intake: 32 mm (1,25")
Installation angle: 15'
Standard Equipment
Panel C4
- Tachometer and hour meter
- Engine oil pressure indicator
- Coolant temperature indicator
- Ignition start key
- Coolant temperature warning light
- Water in fuel filter warning light
- Engine oil pressure warning light
Heat exchanger
Fresh water pump
Thermostat
Sea water pump
Fresh water cooled exhaust manifold
Exhaust elbow with water injection
In line injection pump
Fuel feed pump
Fuel filter
Oil filter
Oil drain pump
Electric system 12 V.
Electric stop
Optional Equipment
Two-pole electric system
PTO pulley
Coupling
Exhaust system
Remote control
Sea water hoses
Fuel hoses
Sea water filter
Keel cooling
Down angle or V drive gearbox
Additional alternators
- Printable Brochure [download, 272KB]
- Engine Installation Sheet [download, 197KB]
- Sail Drive Leg Technical & Installation Sheet [download, 1,142KB]
- Dimensional Drawings [download, 83KB]
- Technical data [download, 38KB]
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