Slash Fuel Costs
Idling a sleeper burns 0.8–1.2 gallons of diesel per hour. A TriPac APU uses a fraction of that to deliver the same climate control and power, paying for itself in fuel savings alone.
Payback in fuel savings
Limited Inventory · Available Now
In-Stock APUs Ready to Move.
Thermo King TriPac auxiliary power units in stock and ready to ship. Cut fuel costs, eliminate overnight idling, and keep drivers comfortable — starting at $6,637 before installation.
- Ready to Ship Nationwide
- Reduce Fuel Costs
- Authorized Thermo King Dealer
Available Now · Limited Quantities
In-Stock TriPac APUs Ready to Ship
Four Thermo King TriPac packages in stock today. Once they're gone, lead times push out weeks. Reserve yours before inventory runs out.
4 in stock
Most EquippedTriPac 3 – Package 1
- After Treatment
- 2000W Inverter
- Hourmeter
- Arctic Package
Starting at$15,657.02Before installation
Reserve3 in stock
Popular ChoiceTriPac 3 – Package 2
- Truck Integration
- Arctic Package
Starting at$12,191Before installation
Reserve1 in stock
Last OneTriPac Evolution
- Truck Integration
- Arctic Package
- Hourmeter
Starting at$11,105.11Before installation
Reserve1 in stock
Best ValueTriPac Envidia(Electric)
- 1000W Solar Panel
- Zero Emission
Starting at$8,010.03Before installation
ReservePricing and availability subject to change. Quotes confirmed by a Sonsray specialist.
Why Add an APU · Thermo King TriPac
Reduce Fuel Costs. Eliminate Idling.
An idling sleeper cab burns roughly a gallon of diesel every hour. A TriPac APU delivers heat, AC, and hotel loads without running the main engine — so you save fuel, cut emissions, and keep drivers comfortable overnight.
Eliminate Idling
Stay compliant with anti-idling regulations in every state. TriPac APUs run on their own small engine or battery bank, keeping your main engine off and your hours meter low.
Anti-idle compliant · Lower engine wear
Driver Comfort + Efficiency
Quiet heat, AC, and 12V/120V power for sleep, meals, and devices. Comfortable drivers sleep better, drive safer, and stay with your fleet longer.
Heat · AC · Shore power
Thermo King TriPac
Why Sonsray Fleet Services
More Than Equipment. Your Fleet Partner.
Sonsray Fleet Services is an authorized Thermo King dealer with a nationwide service network. We'll help you pick the right TriPac package for your trucks, coordinate installation, and keep every unit running for the life of the equipment.
In-Stock Inventory, Fast Turnaround
Units ship from our yard, not a factory queue.
Nationwide Service & Parts
Factory-trained technicians and Thermo King OEM parts, coast to coast.
Install Coordination
We schedule installs around your routes to keep trucks earning.
13+
Service Locations
$6,637
Starting Price
24/7
Support Available
Frequently Asked Questions
Questions About TriPac APUs?
The most common questions we hear from fleet managers about TriPac inventory, fuel savings, installation, and long-term support.
How much can an APU actually save my fleet?
A typical long-haul sleeper idles roughly 1,800–2,000 hours per year burning about a gallon of diesel per idle hour. Replacing that with a TriPac APU typically pays for the unit inside 12 months of fuel savings alone, plus you reduce main engine hours, oil changes, and DPF regens.
What's the difference between TriPac 3, Evolution, and Envidia?
TriPac 3 is Thermo King's flagship diesel APU — quiet, efficient, and built for heavy long-haul duty. TriPac Evolution integrates tightly with the truck's systems for a cleaner install. TriPac Envidia is the fully electric, zero-emission option with battery bank and optional solar charging — ideal for fleets meeting sustainability or CARB goals.
Is the inventory really limited?
Yes. The units listed above are physically on our lot and ready to ship. Once they sell, replenishment pushes out to factory lead times. If you want one of the specific configurations shown, the best move is to reserve it now.
Can Sonsray install the APU for me?
Yes. Our factory-trained technicians handle TriPac installations at any of our 13+ service locations, and we schedule around your trucks' routes to keep downtime minimal.
Do APUs help with anti-idling regulations?
Absolutely. Most states restrict sleeper idling beyond 5 minutes, and several (including California under CARB) impose strict limits. A TriPac APU delivers heat, AC, and driver power without running the main engine, keeping your fleet compliant wherever you operate.
Can I buy more than one unit?
Yes. If you need multiple units — or a mix across the TriPac lineup — let us know in your quote request and a specialist will put together a fleet package with confirmed availability and pricing.
Still have questions? Our team is here to help.
Talk to a SpecialistReady to Reserve?
Lock In Your TriPac APU Today
Tell us which package you're eyeing and how many units you need. A Sonsray specialist will confirm availability, walk through pricing, and coordinate installation.
- No-obligation quote
- Factory-certified Thermo King dealer
- Response within 1 business day
- Secure form submission
Limited Inventory · Available Now
4 TriPac Packages Ready to Ship
Pricing starts at $6,637. Units ship from our yard, not a factory queue.