Drive Belt 78603 For ThermoKing SB190 SB200 SB210 SB230 SB310

Product Overview

This Drive Belt is a high-quality replacement belt for Thermo-King refrigeration units. Designed to transfer power from the engine to the compressor and other accessories, this Drive Belt ensures reliable operation of your cooling system. Ideal for fleet maintenance and repair of transport refrigeration equipment.

Key Features & Performance

• Direct replacement for OEM part numbers 78603 and 78-603
• Manufactured from durable rubber compound for long life
• Resists wear, cracking, and stretching under load
• Engineered for precise tension and alignment
• Meets or exceeds original equipment specifications

Fitment & Compatibility

• Thermo-King SB190
• Thermo-King SB200
• Thermo-King SB210
• Thermo-King SB230
• Thermo-King SB310

Common Uses

• Refrigeration unit drive system replacement
• Truck and trailer reefer maintenance
• Fleet service for Thermo-King SB series
• Preventative maintenance for in-service cooling units

Technical Specifications

• Part Number(s): 78603, 78-603

Frequently Asked Questions

Q: Will this belt fit my Thermo-King SB210? A: Yes, this belt is compatible with the SB210 and all listed SB series models.

Q: Is this an OEM belt or aftermarket? A: This is a high-quality aftermarket belt that meets OEM specifications.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.