Auxiliary Power Units (APUs)

Reduce idling and increase driver comfort with Thermo King’s TriPac® APUs, available in diesel or electric models.

TriPac APU Models

TriPac Evolution Diesel APU

TriPac® Evolution Diesel APU

An auxiliary power unit that provides virtually unlimited sleeper cab heating and air conditioning while reducing tractor idling and lowering maintenance costs

The 3rd generation TriPac diesel APU from Thermo King is now compatible with TracKing® Telematics and includes new emission reduction technology

3rd Generation TriPac® Diesel APU

Our new, 3rd generation TriPac APU that provides the same comfort and performance our APUs are known for but includes enhancements to reduce emissions, monitor unit performance, and increase profitability

TriPac Envidia All-Electric APU

TriPac Envidia® All-Electric APU

A clean, reliable all-electric auxiliary power unit that not only saves fuel but delivers unmatched driver comfort previously unavailable in an electric unit

Increasing Driver Comfort

Add an APU Air Tower

Adding an APU Air Tower to the TriPac® air conditioning system will result in improved temperature management and increased driver comfort.

Since cold air is heavier than warm air, the semi-truck APU has to work very hard to push the air up above the bunk. The APU Air Tower improves air circulation reducing APU run time by up to 22%.

To order or learn more, contact your local Thermo King dealer.

apu air tower

Comforts of Home...on the Road

A Thermo King inverter utilizes pure sine wave plus gives you the power to plug in your devices just like you do at home. Whether you want to recharge your phone, heat food in a microwave or plug in a sleep apnea machine, the type of power the inverter uses is important.

"Long Haul Trucking has always worked to make sure our drivers have the comforts of home, at least as many as we can get in a truck, which is why we choose TriPac units for our trucks."

- Jason Michels, Long Haul Trucking Vice President

Calculate Your Savings

TriPac Backflow Kit

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Unmatched APU Service and Support

There are many APUs out there, but only the TriPac Evolution and Envidia have the support of the nationwide Thermo King dealer network:

  • Expert installation
  • Factory-certified technicians
  • TriPac parts and service
  • Genuine OEM parts 
  • Nearly 200 locations across North America