Description

Overview

Thermo King Engine To Idler Belt suits SB trailer refrigeration drive systems where the engine turns the idler through a cogged, heavy-duty belt. It matters because belt condition directly affects drive stability, and a worn belt can start to squeal, crack, or lose grip under load. When the belt path is already apart for service, this part gives workshops the correct engine-to-idler replacement point for supported SB units.

Features

• Cogged heavy-duty belt for engine-to-idler drive service.
• Single-band belt construction for the supported Thermo King application.
• Suits a broad SB trailer unit range, including older SB II and SB III models.
• Useful when the existing belt shows cracking, glazing, fraying, or belt dust.

Specifications and Materials

Thermo King Engine To Idler Belt uses a cogged belt profile for engine-to-idler drive service on supported SB units. It gives workshops a direct replacement option when the existing belt needs renewal in the main drive path.

Part number: TK-78-0629-09.

See the official Thermo King belt guide for belt construction and service background

Compatibility and Fitment

Match the belt path and the existing belt number before ordering, especially on older units that may have had previous parts changes. This cross-reference listing means this part is a suitable replacement for the part numbers and applications shown. Some changes in installation may be required. 78-0629, 780629, 78-629, 78629

Compliance and Safety

Shut the unit down before belt work, and keep hands, tools, and loose clothing clear of rotating pulleys. If the old belt has polished sidewalls, missing cogs, or heat damage, inspect the matching pulleys and alignment at the same time because a fresh belt will not fix a worn belt path on its own. Also set belt tension and tracking correctly during reassembly, otherwise the new belt can wear early.

Trailer Applications

Thermo King Engine To Idler Belt fits SB trailer units used across older and later SB generations, so it suits routine drive servicing as well as belt replacement during fault finding. Workshops will usually reach for this part when the engine-to-idler belt needs renewal on SB II, SB III, SB-100, SB-110, SB-190, SB-200, SB-210, SB-300, SB-310, SB-400, DE, or Spectrum SB applications.

Cross-reference and Suitability

This part cross-references to or suits the following equivalent part numbers and compatible alternatives:

Why Choose ICS Trailers

ICS Trailers carries Thermo King drive parts used in refrigeration belt service, so this belt can be ordered with the other drive-side items commonly changed in the same job.

Browse Thermo King parts at ICS Trailers for more transport refrigeration replacements