Upper Fanshaft Belt 78-603 for Thermo-King SB190 SB200 SB210 SB230 SB310
Upper Fanshaft Belt 78-603 for Thermo-King SB190 SB200 SB210 SB230 SB310
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Upper Fanshaft Belt for Thermo-King
This upper fanshaft belt, OEM cross-reference 78-603, drives the fan assembly on Thermo-King refrigeration units for reliable cooling performance.
Overview
This upper fanshaft belt for Thermo-King replaces worn or stretched belts that cause fan speed loss and reduced cooling. Designed specifically for Thermo-King SB-series units, this upper fanshaft belt ensures proper tension and long service life.
Built For Performance
- Precision-cut to match OEM specifications for the upper fanshaft belt
- Constructed from durable rubber compound with tensile cord reinforcement
- Resists heat, oil, and ozone for extended life in harsh environments
- Easy to install with standard hand tools
Fits These Machines
- for Thermo-King SB190
- for Thermo-King SB200
- for Thermo-King SB210
- for Thermo-King SB230
- for Thermo-King SB310
Specs At A Glance
| Part Number(s) | 78-603 |
Good To Know
Q: How often should I replace the upper fanshaft belt on my Thermo-King unit? A: Replace it at the first sign of cracking, glazing, or squealing; regular inspection every 500 hours is recommended.
Q: Does this belt fit both left and right fan positions? A: Yes, this upper fanshaft belt is used on the upper fan drive regardless of side; confirm belt routing in your unit's manual.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.
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