Description

Overview

Thermo King Grooved Idler Pulley Assembly suits SLX, SLXe and SLXi trailer refrigeration units where the blower belt runs on a grooved idler with spindle. It uses an 82mm grooved pulley, so it helps the belt track properly through the drive system. When the original assembly wears, the belt drive can run rough, make noise or show visible pulley movement.

Features

• Grooved idler pulley assembly with spindle for supported belt-drive setups.
• Suits SLX, SLXe and SLXi trailer refrigeration applications.
• 82mm pulley size for matching the existing grooved idler position.
• Useful when the old pulley assembly feels rough, noisy or loose during belt service.

Specifications and Materials

Thermo King Grooved Idler Pulley Assembly is a grooved idler assembly for blower belt and fanshaft belt service on supported trailer units. The assembly format matters, because this version replaces the grooved pulley together with its spindle rather than a loose pulley on its own.

Part number: TK-77-2901-AM.

See the official Thermo King belts overview for belt-drive component background

Compatibility and Fitment

Match the unit family and confirm whether the repair needs the grooved pulley assembly with spindle or the pulley-only version before ordering, especially when the belt drive is already apart. 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. 77-2901, 772901, 78-1622, 781622, 1E47540G01

Compliance and Safety

Isolate the unit before belt-drive work and keep hands, clothing and tools clear of moving belts and pulleys. If the belt has glazed, frayed or run hot, inspect the surrounding belt path at the same time because a worn belt can damage a new idler quickly. Also check the mounting point and nearby hardware during reassembly, so the new assembly runs square once the unit goes back into service.

Trailer Applications

Workshops use this part on SLX, SLXe and SLXi trailer units during blower belt or fanshaft belt repairs. It suits the grooved idler position used across those supported ranges, so it makes sense when the original assembly is already off the unit or has started to run rough. Because this is a complete grooved assembly, it also suits repairs where the spindle needs replacement with the pulley rather than as a separate loose component.

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 belt and pulley repairs, so this assembly sits alongside the service items workshops often replace in the same job.

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