2010 ENGINEERED AIR SYSTEMS GEC-4; Engine: 4 Cyl.; Diesel; Gvwr: 23,800; Aircraft Conditioning Ground Support Unit . Trailer Mounted, Vapour Cycle Unit. 460 Volts, 3 Phase, 60hz. Detroit Diesel Power. Wheels: Steel; Tires : Fair Condition; Overall Condition: Good; A/c: Good; Hyd. Cylinder: Good; Engine Make: Detroit; Batteries: Good; Tire Size: 750-15; Hour Meter Reads: None.