Nanni marine diesel engine N9.510 without reversing gear CR2

The Nanni N9.510 CR2 is a 6-cylinder in-line marine diesel engine built on a 9-liter John Deere engine block. It produces an output of 373 kW (507 hp) at a rated speed of 2400 rpm and delivers a peak torque of 1869 Nm at 1900 rpm. This power unit features replaceable wet-type cylinder liners, 4 valves per cylinder, and an electronically controlled high-pressure common-rail fuel injection system. The air intake system is turbocharged and equipped with an air-to-seawater aftercooler. The engine comes standard with a closed cooling system with a heat exchanger, an SAE 1 flywheel housing (SAE 2 optional), and a 24V electrical system with a high-capacity 100-Amp alternator. Weighing 948 kg dry, this version is supplied without a marine gearbox, ready for customizable transmission adaptation. Holding an M4 duty rating for 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, NRMM Tier 3, and IMO Marpol Annex VI emission standards.