Bus Air Conditioning & Transit HVAC
Climate Control for Passenger Comfort
Thermo King bus and transit HVAC systems deliver reliable climate control for passenger comfort across every type of transit vehicle — from compact rooftop units for city buses to high-capacity systems for intercity coaches.
Bus Air Conditioning & Transit HVAC Lineup
Find the right unit for your operation — explore each model and request a quote.
Rooftop HVAC system for coach and transit
Athenia AM II Series
A complete range of low-weight, high-performance roofmount HVAC systems for coach and transit applications, featuring an updated design for improved quality and reliability.
The next generation of bus microprocessing technology for climate control.
IntelligAIRE III
The Thermo King IntelligAIRE III is a 3rd generation advanced microprocessor-based controller for bus climate control systems, offering complete communication capabilities and multi-zone temperature control.
The most reliable HVAC system for transit is now better than ever.
T-Series
The Thermo King T-Series offers high performance and reliability for bus HVAC systems, designed for low life cycle costs and easy serviceability.
Built for Performance. Backed by Sonsray Fleet Services.
Every Thermo King unit we sell is backed by the largest service network in North America — engineered to protect your cargo, reduce operating costs, and keep you compliant.
Passenger Comfort
Advanced climate control maintains consistent cabin temperatures in any weather condition.
Reliable Performance
Built for demanding duty cycles — dependable heating and cooling across thousands of operating hours.
Easy Maintenance
Modular designs and accessible components make routine service faster and reduce downtime.
Energy Efficient
Engineered for optimal energy consumption with minimal impact on fuel economy.
Precise Controls
Digital control systems with onboard diagnostics for real-time monitoring and adjustment.
All-Climate Operation
Heating and cooling capabilities for year-round passenger comfort in extreme heat or cold.
The Sonsray Fleet Services Advantage
When you partner with Sonsray Fleet Services, you get more than equipment — you get North America's largest Thermo King dealer network.
Thermo King Authorized
Factory-authorized sales, service, parts, and warranty support nationwide.
13+ Locations
Coverage across the Western US with on-site and mobile service teams.
24/7 Emergency Service
Round-the-clock roadside support to keep your cold chain moving.
Genuine TK Parts
Massive in-stock inventory of Thermo King OEM parts ready to ship.
Request a Quote
Tell us what you're looking for and a local Sonsray representative will reach out to you promptly with pricing and availability.
- No obligation — just honest answers from equipment experts.
- Fast response from your nearest Sonsray location.
- Factory pricing, financing options, and trade-in evaluation available.
- We carry new, used, and demo equipment across all brands.
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