Fiat Powertrain Technologies releases two certified mechanical engines for underground mining: the N45 4 MSS X and the N67 MNT X. The engines can be configured to meet various mining application needs including man trips, roof bolters, personnel carriers, and service centers. The N45 MSS X inline four-cylinder offers 99 hp (74 kW), while the N67 MNT X inline six-cylinder features 175 hp (130 kW). Both offer clean and quiet performance and low ventilation rates of 4000 and 6000 ft³/min (113,270 and 169,900 L/min), respectively. The N45 is used primarily for service vehicles and offers low maintenance and smooth, reliable operation that prevents excessive vibration or noise. Both engines are available as a module complete with cooling package, making them a drop-in solution without electronics for repower needs such as older air-cooled engines.