Nanni marine diesel engine N4.50 with ZF Hurth reversing gear ZF25AR=2.71:1

Nanni Marine Diesel Engine N4.50 with ZF Hurth Reversing Gear ZF 25 A (R=2.71:1) Powerful and highly dependable 4-cylinder in-line marine diesel engine (36.8 kW / 50 hp at 2800 rpm) built on a robust Kubota engine block. With a 2.2-liter displacement, this naturally aspirated engine delivers an impressive peak torque of 146 Nm at just 1800 rpm, ensuring smooth operation and superior thrust. This complete propulsion package comes equipped with a hydraulic ZF Hurth ZF 25 A marine gearbox featuring an 8° down angle output and a powerful 2.71:1 reduction ratio, ideal for high-thrust propeller configurations. The engine features a closed cooling system with a heat exchanger, a high-capacity alternator, and a premium instrument panel with coolant temperature and oil pressure gauges. Fully compliant with RCD 2013/53/EU and EPA Marine Tier 3 regulations, it offers a low-vibration and premium drivetrain solution for larger sailing yachts and heavy displacement cruisers.