Built as a successor to the McCormick T-Max range, the X50 tractor series is powered by a new generation of technologically advanced Perkins engines. The 854E-E34TA 3.4 liter, four-cylinder turbocharged and aftercooled units feature a two-valve cylinder head and a common-rail injection system. Using an innovative exhaust gas recirculation technology (EGR) which reduces NOx emissions at source, the Perkins engines meet the Tier 4 Interim emission regulations without the use of fuel additives. Based on cutting-edge technology, these engines deliver improved power and torque performance with reduced fuel consumption. The X50 series comprises four models with power ratings from 85 to 113 hp: the 20, 30, 40 and 50. All models are available in both Synchro and Power Shuttle versions. The modular and versatile basic gearbox (Speed Four) has four synchronised gears in three ranges offering 12 forward and 12 reverse speeds. The Synchro Shuttle version features a mechanical reverse shuttle fitted under the steering wheel, while the Power Shuttle version has an electrohydaulic reverse power shuttle. The Synchro Shuttle transmission is offered as standard on the 2WD models with 12 forward and 12 reverse gears and a maximum speed of 18.7 mph (30 km/h). With optional creep speed, this version provides 16 forward and 16 reverse gears. On the 4WD models, an overdrive is added to the basic transmission providing 24 forward and 12 reverse gears and a speed of 25 mph (40 km/h). The Power Shuttle transmission in the 18.7 mph (30 km/h) version offers for the 2WD models the same features and options as the Synchro Shuttle configuration. On the 4WD models, the Power Shuttle is combined with a Powershift transmission offering three shiftable on-the-go ranges (H-M-L) and a maximum speed of 25 mph (40 km/h), thus providing 36 forward and 12 reverse gears. This version also can be optionally equipped with a creeper providing a total of 48 forward and 16 reverse speeds. All X50 tractors are equipped as standard with a mechanical power lift with Ergonomic Lift System (E.L.S.), except the Power Shuttle version with cab which features an electronic power lift. All models come with draft control on the lower links. In addition to introducing new engines, the range has also been extensively restyled. The hood has been fully redesigned to sport the new family styling that will mark all future McCormick tractor ranges. The cab interior was also revamped to offer improved levels of ergonomics and operator comfort, making these tractors ideally suited for intensive field operations as well as for yard work. The X50 tractors are also available in an iso-mounted platform version.