781341 78603 78629 Belt Set for Thermo King SB Trailer Units 3 Piece

Product Overview

This 3-piece belt set is designed specifically for Thermo King SB trailer refrigeration units, providing reliable power transmission to the compressor, alternator, and other engine-driven components. It includes all necessary belts for standard maintenance on compatible Thermo King SB models, ensuring your unit maintains proper cooling performance during transport. This belt set replaces OEM part numbers 78-1341, 78-603, and 78-629.

Key Features & Performance

• Includes three belts: 78-1341, 78-603, and 78-629 for complete replacement
• Constructed from durable rubber compound to resist cracking and wear from continuous operation
• Designed to maintain tension and grip under varying loads in trailer refrigeration systems
• Engineered to match OEM specifications for precise fitment on Thermo King SB units
• Provides reliable drive for compressor, fan, and alternator pulleys

Fitment & Compatibility

• Compatible with Thermo King SB trailer refrigeration units
• Replaces OEM part numbers 78-1341, 78-603, and 78-629

Common Uses

• Replacement belt set for Thermo King SB series trailer refrigeration units
• Used in over-the-road reefer trailers for perishable cargo transport
• Suitable for routine maintenance and belt replacement during service intervals

Technical Specifications

• Part Number(s): 78-1341, 78-603, 78-629
• Quantity: 3-piece set
• Compatibility: Thermo King SB Trailer Units

Frequently Asked Questions

Q: How often should this belt set be replaced on a Thermo King SB unit? A: Belt replacement intervals vary by usage, but it is generally recommended to inspect belts every 500 hours or annually and replace them if cracking, glazing, or fraying is visible.

Q: Are these belts the only parts needed for a full belt change on a Thermo King SB? A: This 3-piece set includes the standard drive belts for the compressor, alternator, and fan, but you should verify your specific model's belt routing and check if a tensioner or idler pulley replacement is also required.

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