Chongqing Cummins Engine Co., Ltd.(CCEC) NT series marine auxiliary engine is a 6-cylinder inline, 14 liters four-stroke engine with a bore of 140 mm (5.5 in) and a stroke of 152 mm (6.0 in). Equipped with a PT Fuel System and a turbocharger, the Chongqing Cummins Engine Co., Ltd.(CCEC) NT series marine auxiliary engine offers a power range from 321 HP to 425 HP (240 kW to 317 kW). The torque range of the NT Series marine auxiliary engine spans from 1239 N.m to 2612 N.m.

Different configurations are available for Chongqing Cummins Engine Co., Ltd.(CCEC) marine auxiliary engines, signified by codes in the engine model name. Code T denotes a turbocharged engine, code TA indicates a turbocharge with a water-air intercooler, and code TAA signifies a turbocharge with an air-air intercooler. All Chongqing Cummins Engine Co., Ltd.(CCEC) marine auxiliary engines come with a dry-type exhaust system, featuring a dry-type exhaust manifold and dry-type turbocharger. Neoenergy offers upgrading services for water-cooled exhaust systems, modifying dry-type exhaust systems into water-cooled exhaust systems, a crucial consideration often requested in passenger boat projects.