The Nanni N13.430 CR2 is a 431 HP (317 kW) marine diesel engine based on a John Deere engine base, featuring a 13.6-litre 6-cylinder in-line 4-stroke configuration with electronically controlled unit injectors. It uses a turbocharged air-to-seawater aftercooler and closed cooling with heat exchanger, and is compatible with shaft line, water jet, and surface drive transmissions. The engine is HVO compliant and meets RCD2, EPA Marine Tier 3, IMO Marpol Annex VI, and NRMM Tier 3 emission standards.