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ZZ3F08125
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78-1366 Belt Engine to Compressor for Thermo King MD-100 w/TK 3.74 Engine 781366
$88.09
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$88.09
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Compatible Models
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Compatible equipment / model
Belt Engine to Compressor for Thermo King MD-100 w/TK 3.74 Engine
This engine-to-compressor belt, cross-referenced as 78-1366 and 781366, transfers power from the Thermo King MD-100's TK 3.74 engine to the compressor, ensuring reliable refrigeration system operation.
Overview
The 78-1366 belt engine to compressor is a direct replacement drive belt designed for the Thermo King MD-100 unit with the TK 3.74 engine. It maintains proper tension and alignment between the engine and compressor, keeping the cooling cycle running efficiently. This belt is essential for sustained performance in transport refrigeration applications.
Built For Performance
- Precision-cut dimensions match the OEM 78-1366 belt profile for secure fitment
- Reinforced rubber construction resists wear from continuous engine vibration
- Heat-tolerant compound maintains flexibility under high under-hood temperatures
- Ribbed surface reduces slippage for dependable power transfer
- Direct replacement for original part number 781366 without modification
Fits These Machines
- for Thermo King MD-100 with TK 3.74 engine
On-The-Job Use
- Used in over-the-road truck refrigeration units for perishable cargo hauling
- Replaces worn belts during routine preventive maintenance on reefer systems
- Supports continuous duty operation in temperature-controlled logistics fleets
- Installed during compressor rebuilds or engine service intervals
Specs At A Glance
| Part Number(s) | 78-1366, 781366 |
| Belt Type | Engine to compressor drive belt |
| Compatible Unit | Thermo King MD-100 |
| Engine Application | TK 3.74 |
Good To Know
Q: How do I know if this belt is the right length? A: Verify your unit's serial number and engine model, since the MD-100 may use different belts across production years. The cross-reference 781366 matches the original part for most TK 3.74 configurations.
Q: What happens if the belt fails during operation? A: The compressor stops receiving power, causing a loss of cooling and potentially damaging the engine pulley system. Inspect the belt for cracks or fraying at each service interval to avoid breakdowns.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.