Nanni marine diesel engine N6.405 with ZF Hurth reversing gear CR2INVZF85 IVR=2.00:1

Nanni N6.405 CR2 with ZF Hurth ZF 85 IV (R=2.00:1) The Nanni N6.405 CR2 is a 6-cylinder in-line marine diesel engine built on a 6.8-liter John Deere engine block. It produces an output of 298 kW (405 hp) at a rated speed of 2700 rpm. This high-performance common-rail power unit features replaceable wet-type cylinder liners, 4 valves per cylinder, a turbocharger, and an air-to-seawater aftercooler. In this specific configuration, the engine is coupled with a hydraulic ZF Hurth ZF 85 IV "V-Drive" marine gearbox. Featuring an integrated 12° vee-angle, this V-drive transmission allows the engine to be mounted facing aft, saving significant space within the machinery compartment. Combined with an efficient 2.00:1 reduction ratio, this propulsion package is ideal for express cruisers, luxury motoryachts, and sport fishers looking for a space-saving footprint without sacrificing top-tier thrust. The package includes a closed cooling system with a heat exchanger, a dedicated transmission oil cooler, and a 24V electrical system with a 50-Amp alternator. Holding an M4 duty rating (up to 3000 annual operating hours with a load factor up to 40%), the engine complies with RCD2 2013/53/EU, EPA Marine Tier 3, and IMO Marpol Annex VI emission standards.