The Nanni N13.580 CR2 is a 583 CV (429 kW) marine diesel engine based on a John Deere 6-cylinder inline 4-stroke engine with 13.6-litre displacement. It features electronically controlled unit injectors, turbocharged air-to-seawater aftercooling, and closed cooling with a heat exchanger. The engine is HVO compliant and meets RCD2, EPA Marine Tier 3, and IMO Marpol Annex VI emission standards.