Coldtainers
Portable Cold Storage
Portable cold storage containers for last-mile delivery, events, and temporary cold chain needs. Flexible, plug-and-play refrigeration solutions backed by Thermo King reliability.
Coldtainers Lineup
Find the right unit for your operation — explore each model and request a quote.
Clip-On Generator Sets
Clip-On Container Generator Set
SGCO-3500
Clip-on generator set for ISO containers built on the proven SG-3500 platform. 15 kW output, 24.4 HP Yanmar engine, EPA Tier IV Final, 7-year CARB compliance, and optional telematics.
CARB-Compliant Clip-On Generator Set
SGCO-5000c
Clip-on container generator set with the SG-5000c platform. Lifetime CARB compliant, 15 kW output, 120-gallon tank, and standard telematics for full fleet visibility.
Undermount Generator Sets
Undermount Two-Speed Generator Set
SGUM-3500
Chassis-mounted undermount genset with the proven SG-3500 platform. 15 kW output, 24.4 HP Yanmar engine, optional telematics, and 7-year CARB compliance for road operations.
Undermount Two-Speed Genset with SG+ Controller
SGUM-5000
Lifetime CARB-compliant undermount genset with the SG+ microprocessor controller. 29.4 HP common-rail diesel, 15 kW output, and 50- or 80-gallon fuel tank options.
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.
Plug & Play
Simple AC or vehicle-power hookup — ready to refrigerate in minutes.
Portable & Modular
Move between vehicles, events, and locations without permanent installation.
Wide Temperature Range
Refrigeration to deep-freeze for any cold-chain application.
Last-Mile Ready
Drop-in solution for express, pharma, and food-service deliveries.
Event-Friendly
On-demand cold storage for catering, sampling, and pop-up events.
Sonsray Support
Sales, service, and rental options through your Sonsray Fleet Services team.
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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