The Stewart & Stevenson TM4900 generator set is designed to provide an AC source of 90 kVA, 400 hertz, 115/200 V, 3 phase electrical energy for ground support of any aircraft requiring this output. This diesel generator set is a self-contained, towable unit that is capable of supplying power at closely controlled voltage and frequency and is rated continuously for 90 kVA power output. Please contact Victory Ground Support Equipment with your used ground power unit needs. We offer many reconditioned and load tested, used gpu’s for sale or rent.