The standard Engine Warranty for the HP2000 APU’s 2-Cyl. Perkins Engine is 2 years / 2,000 hours, as provided by the engine manufacturer, Perkins. In addition to their commitment to providing the best 2-Cyl. Diesel Engine on the market, they now offer an extended warranty plan of up to 4 Years / 6,000 Hours! That’s double the years and triple the hours of their standard warranty for just $750! This extended warranty can be purchased for both new or existing units as long as you’re within your original standard warranty period. To upgrade your HP2000 APU warranty you can either call our office at 618-997-9608 or send an email to chelsey@hp2000apu.com.