Stay cool, comfortable, and fuel-efficient with our Auxiliary A/C System APU solutions designed for semi trucks, RVs, tractors, and other heavy-duty vehicles. These advanced Auxiliary Power Units (APUs) provide reliable air conditioning without engine idling, helping reduce fuel consumption, emissions, and engine wear.
Ideal for long-haul truck drivers, RV owners, and agricultural operators, our systems deliver dependable climate control in demanding environments. Whether you're resting in a sleeper cab, parked at a job site, or working in the field, an auxiliary A/C system ensures consistent comfort and improved productivity.
We offer both rooftop and wall-mounted APU units, giving you flexible installation options to suit your vehicle type and space requirements. Each system is built for durability, quiet operation, and energy efficiency, making them a smart investment for long-term performance.
By choosing an auxiliary A/C system APU, you can extend engine life, lower operating costs, and stay compliant with anti-idling regulations. Browse our selection to find the perfect cooling solution tailored to your vehicle. Experience better comfort, efficiency, and reliability—wherever the road or work takes you.
Roof Mounted Units
Red Dot R-2000-11P, R-2000-6P, R-9755-0P, R-6101-0P, R-9727-3P, E-6100-0-12P, E-6100-0-24P
Kysor KA-300
Wall Mounted Units
Red Dot R-6840-0P, R-6840-0-24P, R-7830-12P, R-8545-17-24P, R-6521-1P
Kysor KA-550, KA-710
MCC 13-2022
Copyright 2026 bigparts All Rights Reserved.
