Cummins Inc. announce that beginning in 2019, X12 powered motor coaches will be available for delivery from Motor Coach Industries (MCI), a subsidiary of New Flyer Industries Inc. (“NFI Group“), the largest transit bus manufacturer and parts distributor in North America. To meet these needs, the Cummins X12 boasts an innovative sculpted block design that results in a remarkably low engine weight of 2,150 lbs by eliminating unnecessary mass without compromising rigidity and performance. Delivering up to 455 hp (339 kW), the X12 power-to-weight ratio of 0.21 hp per lb (0.35 kW per kg) surpasses similar-sized products in the coach market. Derived from the X15 engine, the XPI fuel system is scaled down in size for the 12-liter platform, but retains all the same robust characteristics. Along with the XPI fuel system, the Variable Geometry Turbocharger is central to the X12 engine architecture, providing versatility to meet the challenges of light-urban, sub-urban or inter-city drive cycles while delivering best-in-class uptime. The X12 uses the latest Single Module™ aftertreatment system, which takes up to 60% less space and weighs up to 40% less than prior aftertreatment configurations. Combined engine and aftertreatment weight for the X12 is around 2,340 lb – significantly lower than that of any other heavy-duty engine.