The Nanni N13.800 CR2 is a high-performance 6-cylinder inline 4-stroke diesel marine engine based on a John Deere engine base, producing 760 CV (559 kW) from a 13.6-litre displacement. It features electronically controlled unit injectors, turbocharged air-to-seawater aftercooling, and closed cooling with a heat exchanger. Compatible with shaft line, water jet, and surface drive transmissions, it is HVO compliant and meets RCD2, EPA Marine Tier 3, and IMO Marpol Annex VI emission standards.