78-1366 Belt Engine to Compressor for Thermo King MD-200 MT, MD-300 781366
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Belt Engine to Compressor for Thermo King MD-200 MT, MD-300
This engine-to-compressor belt, cross-referenced as 78-1366 and 781366, connects the engine output to the compressor on Thermo King MD-200 MT and MD-300 units for consistent cooling power.
Overview
The 78-1366 belt engine to compressor is a replacement drive belt engineered for Thermo King MD-200 MT and MD-300 refrigeration systems. It transfers rotational force from the engine to the compressor, enabling the refrigeration cycle to maintain precise temperatures. This belt provides a dependable fit for multiple Thermo King mid-range models.
Built For Performance
- Constructed with high-tensile cords to handle peak torque loads
- Ozone-resistant rubber compound prolongs service life in outdoor installations
- Exact rib geometry matches OEM pulleys for quiet operation
- Oil and grease resistant surface prevents premature degradation
- Drop-in replacement for part numbers 78-1366 and 781366
Fits These Machines
- for Thermo King MD-200 MT
- for Thermo King MD-300
On-The-Job Use
- Installed on reefer units mounted to box trucks and straight trucks for cold chain delivery
- Replaces stretched or cracked belts during scheduled maintenance
- Supports long-haul refrigeration in food distribution and pharmaceutical transport
- Used in auxiliary power configurations where the engine drives the compressor directly
Specs At A Glance
| Part Number(s) | 78-1366, 781366 |
| Belt Type | Engine to compressor drive belt |
| Compatible Units | MD-200 MT, MD-300 |
| Application | Transport refrigeration |
Good To Know
Q: Can this belt be used on other Thermo King models? A: It is specifically listed for MD-200 MT and MD-300, but some MD-100 variants share the same cross-reference. Check your unit's parts diagram to confirm the exact application.
Q: How often should the belt be replaced? A: Typical replacement intervals align with engine service schedules, usually every 1,000 to 2,000 operating hours. Inspect for visible cracks or glazing at each oil change to prevent unexpected failures.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.