Auxiliary Power Units (APUs)

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

Choose Your TriPac APU Model

3rd Generation TriPac® APU

Our newest diesel TriPac APU provides the same comfort and performance our APUs are known for, plus enhancements to reduce emissions, monitor unit performance and increase profitability.

TriPac Envidia® All-Electric APU

A clean, reliable electric APU that saves fuel while delivering unmatched driver comfort previously unavailable in an electric unit

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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.


Download APU air tower flyer
APU Inverter Flyer Photo.jpg

The 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.

Download APU inverter flyer
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"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

Illustration of a North American map showing locations of Thermo King dealerships

Unmatched APU service and support

There are many APUs out there, but only the TriPac APU has 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
Find a dealer near you