Polar Fox APU

Watch us upgrade this 2017 Freightliner Cascadia from a diesel APU to a Polar Fox Elite electric APU system. No extra battery box, no DC-to-DC charger, no alternator upgrade required. Factory-looking installation with 8–12 hours of cooling runtime.

🚛💨 Diesel prices are climbing again! Why burn fuel idling when you can stay cool with a Polar Fox APU Lite DIY Air Conditioner?

✅ Designed specifically for semi-trucks
✅ Handles vibration, rough roads, and real trucking conditions
✅ 12V operation
✅ Easy DIY installation
✅ One-Year Warranty
✅ U.S.-Based Support

🔥 CLEARANCE SALE 🔥

Originally $3,500
NOW ONLY $1,600

We’re clearing out old inventory, so our loss is your gain!

If you’ve been thinking about adding a truck A/C system without spending thousands on a full APU setup, this is your chance.

⚠️ Limited quantity available. Once they’re gone, they’re gone!

Message us today or visit Polar Fox APU to learn more.

Brand new Polar Fox APU installed on this 2024 Freightliner Cascadia.

Brand New Polar Fox Shore Power Unit - a big charger to charge your battery and run your Polar Fox APU at the same time!

Polar Fox APU at Truck World 2026

The battery is the soul of an electric APU—powering everything that keeps the system running smoothly. This advanced battery isn’t just for auxiliary use; it’s built to do it all. It has the strength to start your truck when you need it most, while also delivering reliable deep-cycle performance to support extended runtime, comfort, and off-engine power without compromise.