The Jet-Ex® 6D is the latest generation of diesel-powered, 28.5 VDC ground power units (GPU) in the Hobart Jet-Ex® line of GPUs. Manufactured by Hobart Ground Power in the USA, the Jet-Ex® 6D is 20 percent more fuel efficient than previous models. This greatly reduces the operating cost and the emissions (carbon footprint). Powered by the Cummins QSB4.5 diesel engine, the Jet-Ex® 6D is EPA Tier3/CARB Tier 3/EU Stage IIIA low emissions compliant. Running quietly at 1800 RPM, the Jet-Ex® 6D provides more than 12 hours of continuous operation on one tank of fuel. It features 800 continuous amps and 2000 starting amps.