Green APU Auxiliary Power Units
Proudly assembled in Chicago, IL
Built with high-quality components and attention to detail—engineered for durability, serviceability, and long-haul performance.
Powered by a 3L Diesel Kubota Engine
Draws fuel directly from your truck’s existing fuel tank
Charges your truck’s batteries when in charge mode
Circulates coolant to pre-warm the engine in cold weather
Internal under-bunk HVAC box for both A/C and heat, controlled with a simple dial
Auto-activates when the truck shuts off, thanks to alternator integration
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When it comes to reducing idle time and staying efficient on the road, Green APU sets the industry standard. Designed to power your cab’s HVAC, charge your batteries, and keep your engine warm without running your truck, Green APU is the smart choice for owner-operators and fleets alike.
At Blacktop Repair, we offer complete Green APU installation and service. Whether you’re installing a new unit or need repairs, our team is here to help.
Why Choose Green APU?
Green APU combines comfort, efficiency, and dependability—and at Blacktop Repair, we install and support them with expert precision.
Mitch Lacher, Managing Member & Fleet Manager:
“We rely on Green APUs across our fleet because of the dependable diesel engine and the easy access to affordable parts. I can pick up belts, filters, and even alternators from local auto parts stores—no need to go through dealer networks or proprietary vendors.
The diesel APU performs reliably, even in sub-zero conditions. When our drivers return to their trucks, I know the engine will start, no matter how cold it gets. The unit keeps the batteries charged consistently, eliminating the dead battery concerns we’ve had with electric APUs.”
Powered by a 3L Diesel Kubota Engine
Draws fuel directly from your truck’s existing fuel tank
Built with easily replaceable parts like belts, solenoids, tensioners, and filters—all widely available at auto parts stores
Charges your truck’s batteries when in charge mode
Smart, Automatic Operation
Circulates coolant to pre-warm the engine in cold weather
Internal under-bunk HVAC box for both A/C and heat, controlled with a simple dial
Auto-activates when the truck shuts off, thanks to alternator integration
Emergency Backup Capability
If your truck’s main alternator fails, the Green APU can keep your system running—getting you back to the shop without needing a tow or roadside service call.
Frequently Asked Questions
What makes American Eagle Exhaust & Steps stand out?
They combine performance and looks — with chrome and polished finishes that enhance airflow and style. The exhaust kits and steps are made to bolt on clean, and they’re as sharp as they are durable.
Do these steps come with traction or grip for safety?
Yes. The step surfaces are wide and built with anti-slip designs that hold up in rain, snow, and mud — no need to sacrifice function for style.
What truck models are these compatible with?
We install parts for Peterbilt, Kenworth, Freightliner, Mack, Volvo, Western Star, International, and more. We’ll match the right parts to your rig.
Do I need to modify my truck to install these?
No. These systems are designed for clean installs without cutting or welding. We’ll handle everything at our Mapleton shop.
Can I get fleet pricing or multi-truck installs?
Absolutely. We offer install packages for fleets and can quote out full setups. Give us a call and we’ll line it up.
Trusted by Truckers, Backed by Experience
Customer Testimonials: Service You Can Count On
Great staff, they installed my APU the same day, make sure you make an appointment, Eric answered every question I had and bad man did a super professional job installing the unit, I would recommend this place and I will come back for my APU needs.
Luis B.
I have my truck on the road 5-6 days a week and this auxiliary power unit stands the test of time no matter what time of year it is. It’s got to be the best APU unit for trucks.
Wayne T.
Speechless! My previous APU was another brand and it cost me a lot of money. I threw it in garbage. I put a Green APU. April 2020 until now. 1240 hours. Just oil change. That’s it! Thank you, Eric! Special thanks to the guys in the shop!
Ivan R.
