TriPac 3rd Gen Diesel APU
- EPA Tier 4 and optional CARB compliance
- Remote diagnostics & 24-month telematics (TracKing®)
- Up to 13,000 BTUs of heating and cooling
- Fuel savings: up to 2,500 gal/year
AUXILIARY POWER UNITS
Fuel Efficiency Starts with Thermo King
Industry-leading APUs that cut idling, save fuel, and keep drivers comfortable.
- Zero-emissions, CARB-compliant
- Lithium-ion battery powered
- Quiet operation
- Shore power compatible
About the 3rd Generation TriPac® APU
3rd Generation TriPac® APU
Thermo King TriPac: The APU drivers ask for by name
The 3rd generation TriPac® diesel APU delivers the trusted comfort and performance Thermo King is known for—now enhanced with integrated TracKing® Telematics and advanced emission reduction technology.
Re-engineered for long-term reliability, this updated system lowers total cost of ownership, boosts uptime, and features a new digital color display for easier, more precise driver control.
Bring Driver Comfort and Operational Efficiency Together
Keep your drivers comfortable and your fleet running efficiently with the Thermo King TriPac® APU—a powerful, dependable solution built for life on the road. Delivering up to 13,000 BTUs of best-in-class climate control and the capacity to power appliances and charge devices, the TriPac® helps your team rest better, drive safer, and stay productive.
Available in Two Models:
- Standard Model – A 49-state EPA Tier 4 compliant system ideal for aftermarket installations
- Aftertreatment Device (ATD) Model – Fully 50-state compliant, meeting both CARB and EPA Tier 4 standards for new OEM or aftermarket installs
Smarter Performance with Built-In Telematics
For the first time ever, TracKing® Telematics comes standard—providing real-time visibility into APU run hours, cabin temps, and fuel usage. With 24 months of complimentary service, you’ll streamline reporting, simplify maintenance, and gain automated fuel tax tracking.
Plus, get real-time alerts, maintenance reminders, and over-the-air updates to keep your fleet running at peak performance.
Driver-Friendly Controls, Designed for the Road
Give your drivers an easy-to-use, intuitive control system with a new digital color display and simple push-button interface. Large cabin temperature readouts, toggling menus, and plain language readouts make managing comfort effortless—reducing distractions and boosting satisfaction.
50-State Compliance. Maximum Uptime.
The TriPac® APU now features reengineered emissions technology, including a passive aftertreatment device (ATD) that meets CARB and EPA Tier 4 standards across all 50 states. The redesigned system eliminates the need for a dash switch and includes advanced metal mesh technology that regenerates in as little as 8 minutes—keeping your fleet compliant and your drivers focused on the road.
About the TriPac® Envidia
TriPac Envidia® All-Electric APU
Thermo King TriPac: The APU drivers ask for by name
We’re proud to introduce the 2nd generation TriPac® Envidia—a clean, reliable all-electric APU that delivers industry-leading driver comfort, extended runtime, and significant fuel savings. Designed for fleets and drivers committed to sustainability without sacrificing performance, Envidia sets a new standard for no-idle solutions.
With no diesel engine to maintain, reduced emissions, and ultra-quiet operation, it’s the smart choice for modern fleets looking to lower operating costs and improve driver satisfaction. Experience all-electric power that works as hard as you do.
Emission-Free Operation that Meets the Nation’s Toughest Standards
The TriPac® Envidia delivers true zero-emission performance—operating without a diesel engine for a cleaner, quieter in-cab experience. Designed to meet strict anti-idle and CARB compliance standards, Envidia supports sustainability goals while keeping drivers comfortable in any climate.
Save More with Every Mile Driven
As a fully battery-powered APU, TriPac Envidia drastically reduces the need for engine idling—cutting fuel consumption and minimizing wear on the tractor engine. The result? Significant long-term savings on fuel and maintenance without sacrificing comfort or uptime.
Expert Service Wherever the Road Takes You
Backed by Thermo King’s trusted dealer network, TriPac Envidia customers get access to:
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Expert installation
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Factory-trained technicians
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Genuine OEM parts
Available at over 200 service locations across North America, help is never far away.
NXT Battery Technology - Engineered for Long Life and Peak Performance
Purpose-built for TriPac Envidia, the NXT Battery delivers:
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Maximized runtime and system performance
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Advanced dry cell technology for greater efficiency
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Longer battery life and reduced total lifecycle cost
Charge On-Site. Drive Further Off-Grid.
When parked at facilities with shore power, TriPac Envidia can plug in to simultaneously charge both the APU and tractor batteries—ensuring full power availability without fuel use.
Comfort Control at the Push of a Button
The easy-to-use Simple HMI is conveniently mounted inside the sleeper area. With straightforward function selection and clear feedback, drivers can quickly manage comfort settings without distraction.
5 Reasons to Choose Thermo King APU Solutions
Maximized Driver Comfort—No Matter the Power Source
Both the 3rd Gen TriPac® and TriPac Envidia® are engineered to provide consistent, climate-controlled comfort in the sleeper cab, regardless of whether you’re using diesel or electric power. These systems maintain optimal temperature regulation in all weather conditions, helping drivers sleep better, stay more alert, and reduce fatigue on the road. The Envidia® now offers the kind of comfort once only available in diesel units—closing the gap and raising the bar.
Significant Fuel and Emissions Reduction
By eliminating or drastically reducing the need for engine idling, both APUs help cut down on fuel usage, lower greenhouse gas emissions, and meet anti-idling regulations across states and provinces. The 3rd Gen TriPac® offers exceptional fuel efficiency compared to traditional idling, while the Envidia® operates entirely without diesel—making it a 100% zero-emission solution ideal for eco-conscious fleets and sustainability-focused operations.
Lower Maintenance, Lower Total Cost of Ownership
Thermo King has re-engineered its APU systems with durability and uptime in mind. The 3rd Gen TriPac® includes upgraded components and reduced maintenance intervals, while the electric Envidia® eliminates the need for oil changes and engine-related repairs altogether. The result? Fewer service appointments, less downtime, and long-term savings that contribute to a lower total cost of ownership.
Advanced Telematics and Intuitive Controls
Both APUs now offer smarter monitoring and control options. The 3rd Gen TriPac® comes equipped with TracKing® Telematics integration, giving fleets real-time visibility into performance, usage, and diagnostics. Meanwhile, both units include user-friendly digital control panels—featuring bright, full-color displays that let drivers adjust temperature settings, monitor battery levels, and manage runtime preferences with ease.
Proven Reliability Backed by Thermo King’s Dealer Network
Whether diesel or electric, both APUs are backed by the trusted Thermo King name and supported by one of the largest dealer service networks in North America. With thousands of units on the road and a proven track record for uptime and performance, fleets can count on responsive support, access to parts, and expert service—whenever and wherever it’s needed.
Enhanced APU performance and quality
Efficient. Reliable. Built for the Road.
Thermo King’s TriPac® APUs—available in both diesel and all-electric models—deliver powerful, no-idle climate control and unmatched driver comfort. Whether you choose the 3rd Generation TriPac® or the zero-emission TriPac Envidia®, both systems reduce fuel use, lower maintenance costs, and improve sleeper cab conditions.
For even greater airflow and temperature balance, pair either model with the APU Air Tower—bringing added comfort to every mile.
Make the move toward a smarter, quieter, and more cost-efficient fleet solution.
Get Started with Your APU Solution
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