The company's vehicle-integrated primary electrical resource -- VIPER -- systems are scheduled for delivery by the end of September, an Aura Systems statement said.
This brings the number delivered under a 10-year, 1,000-system contract to 620.
Aura, which has headquarters in El Segundo, Calif., said it has confirmed orders for 2,137 systems for the South Korean military spread over seven programs for a total of around $13 million.
Under a previously announced seven-year deal worth around $63 million, South Korea's military ordered 7,000 AuraGen/VIPERs to be delivered at 1,000 per year.
Aura Chief Executive Officer Melvin Gagerman said the company's business with the South Korean military is expanding and an order for between 500-1,000 systems per year should be awarded in the next six months.
"In addition to the South Korean military, we have started to ship small quantities of the VIPERs to Israel, United Kingdom, France and Singapore," Gagerman said.
"We also recently established distribution channels for military programs in the Philippines, Malaysia, Turkey and Indonesia."
The VIPER is Aura Systems battle-proven power generation unit that is run off a vehicle's engine, a statement by the company says.
The system has been used in battle-field operations in the Balkan, Iraq and Afghanistan as part of numerous U.S. Army and Special Forces units. The VIPER also is air-drop certified and was deployed in some parts of Iraq via an air-drop, Aura said.
Aura also said the VIPER has been tested in marine conditions, in particular on board the new U.S. Coast Guard 44- foot aluminum patrol boat being produced by Kvichak Marine in Seattle.
The Viper is the military version of Aura's AuraGen commercial unit designed to fit 90 of the most popular vehicles including the majority of pickup trucks, vans, SUVs and mid-size work vehicles built 1990-2002.
More vehicles are added regularly to the list, Aura said.
Last month Aura Systems signed a deal with Florida's Cyclone Power Technologies to combine Cyclone's all-fuel Cyclone Engine with the AuraGen electrical generation unit.
Cyclone produces steam engines driven by exhaust heat from industrial furnaces, biomass gasifiers and other waste sources.
The cooperative agreement is to tie up an engine with an electricity-generating unit to produce continual power or stand-by power for emergency use," Aura Systems said.
"The AuraGen technology fits extremely well with Cyclone's engines, especially in applications where fluctuations in heat create variations in engine RPM. AuraGen units produce consistent rated power at a wide range of engine speeds, as well as generating AC and DC power simultaneously in a variety of voltages.