• APU generator
  • APU generator in enclosure
  • APU generator mounted behind cab
  • Provides both 37,000 BTU/hr heat and AC power for auxiliary use
  • Cuts down on unnecessary wear on your truck engine, and reduces fuel costs due to truck engine idling.


The ESI-built APU-B is a portable diesel engine generator set with a heat exchanger system. The heat exchanger system transfers heat through coolant to another circuit such as a truck engine. The secondary coolant circuit has integrated quick disconnects and a circulation pump to maintain coolant flow. In addition to providing heat, the unit also provides AC power for auxiliary use.

This auxiliary power unit is designed for outdoor use and has been tested in extreme arctic conditions.

Features & benefits

  • Powerful Kubota Z482 engine outputs 6 kW of continuous power
  • High quality Mecce Alte generator
  • Provides both 37,000 BTU/hr heat and AC power for auxiliary use
  • Prevents needless wear on your truck engine and reduces fuel costs
  • 13 gal secondary fluid containment





Kubota Z482

Generator Mecc Alte
Engine continuous power 6 kW
Voltage 120/240V

Auxillary power

6 kW @ 60 hz

Heat output

Max from coolant

37,000 BTU/hr

Electric heat power

6 kW


Fuel consumption

0.78 gph - full load 6 kW

0.44 gph - no load

Fuel type ULSD
Fuel storage

External tank

13 gal secondary containment

Weight & dimensions


507 lb


Please contact salesperson for dimensions.