Auxiliary Power Units (APUs)

Carrier’s auxiliary power units (APUs) are the trucking industry’s all-around performance leaders. No other APU offers the combination of air conditioning, heating, cab power, engine warming, truck battery charging and optional shore power connectivity found in the ComfortPro diesel or electric units.

Carrier Aspen APU

Aspen™ Diesel APU

The diesel-powered Aspen APU is designed for high performance, versatility, durability, reliability and ease of use. This unit is an ideal solution for any climate. The marine-grade components and enhanced alloys provide strength and corrosion resistance, while automotive-grade electronics protect against sand, dust and water. Stay in control with Aspen Interface, offering easy and intuitive temperature management. Plus, enjoy added versatility with Battery Monitor mode, Winter Watch™ mode and Manual Programming mode.


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Electric APU

ComfortPro Lithium-Ion Electric APU

The ComfortPro electric auxiliary power unit (APU) with li-ion batteries (250ION) significantly outperforms conventional electric APU runtime and battery life, providing quiet, emissions-free performance with minimal maintenance. Enjoy an impressive 17 hours of continuous AC in real-world conditions, the longest of any electric APU.

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Electric APU

ComfortPro Electric APU

The electric powered ComfortPro APU quietly cools the cab for driver comfort throughout the night, during breaks and rest periods using energy supplied by the tractor. This low maintenance system has up to 11 hours runtime with comfort monitor and is compatible with shore power and is customizable for heating, power and more. 

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Get in Touch

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