Refrigerated Trucks & Vans
UT-1290
NewThe highest cooling capacity in its class.
The UT-1290 is Thermo King’s next-generation undermount box truck reefer unit, offering the highest cooling capacity in its class and enhanced reliability for Class 5-7 vehicles.

The UT-1290
The UT-1290 enhances the reliability of our previous undermount truck refrigeration unit and introduces significant advancements. It sets a new industry standard for performance and dependability in undermount refrigeration units.
Benefits
Cooling Capacity and Efficiency
The UT-1290 serves larger box truck sizes, so you can reduce trips by transporting bigger loads. Its new compressor design reaches set points faster and recovers the temperature quicker after opening the door.
Reliability and Serviceability
Designed with ease of access in mind, the UT-1290 enables faster servicing and minimizes downtime. Its new features simplify maintenance and reduce the need for repairs. The redesigned reciprocating compressor now includes an improved power tray system with better belt alignment and one fewer belt, enhancing both reliability and performance.
Less Noise
The UT-1290 provides noise reduction compared to the previous model, enhancing driver comfort while keeping truck noise low to prevent community complaints.
Maximum Payload
Your trucks can transport more cargo in fewer loads with the UT-1290. What’s more, the unit itself is smaller and lighter than its predecessor — nearly 8 inches narrower and over 80 pounds lighter. This allows for a corresponding increase in load weight while improving fuel efficiency.
Unit Specs
System Performance
| Refrigeration capacity (Engine Power, 35°F) | 37,000 BTU/hr (Up to) |
| Refrigeration capacity (Engine Power, 0°F) | 21,500 BTU/hr (Up to) |
| Refrigeration capacity (Engine Power, -20°F) | 12,100 BTU/hr (Up to) |
| Refrigeration capacity (Electric Power, 35°F) | 31,500 BTU/hr (Up to) |
| Refrigeration capacity (Electric Power, 0°F) | 16,000 BTU/hr (Up to) |
| Refrigeration capacity (Electric Power, -20°F) | 8,500 BTU/hr (Up to) |
| Heating Capacity (Engine power, 35°F/0°F ambient) | 15,000 BTU/hr (Up to) |
| Heating Capacity (Electric power, 35°F/0°F ambient) | 10,900 BTU/hr (Up to) |
| Airflow volume @ 0 Pa static pressure | 2,600 ft³/min |
Weight
| Weight (including evaporator, with SmartPower electric standby) | 1,309.5 lbs |
Engine
| Model | TK 376U |
| Rating | 19.6 hp |
| Maintenance Interval | 2,000 hrs |
Compressor
| Model | X430 |
| Displacement | 30 cu. in. |
Electric Standby Motor Options
| Voltage/Phase/Cycles | 460/3/60 or 230/3/60 |
| Rating | 10 hp |
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