Description

Overview

Grooved Idler Pulley Thermo King SLX guides and supports the belt drive on matched Thermo King trailer refrigeration units. When the pulley wears out, it can create noise, belt dust, rough rotation, or side play during service checks.

Features

• Fits matched Thermo King SLX, SLXe, and SLXi trailer units.
• Uses a grooved pulley profile for ribbed belt drive layouts.
• Helps maintain smooth belt tracking and steady pulley rotation.
• Gives technicians a clear replacement option when the original pulley runs rough or noisy.

Specifications and Materials

Match this grooved idler pulley to the unit family and pulley style before ordering. Part number: TK-78-1622-AM.

For SLXi family service context and belt-area safety, see the manufacturer technical guide

Compatibility and Fitment

Check the unit family, pulley profile, and idler position before ordering, because grooved and smooth pulleys do different jobs. If the belt tracks poorly or the tensioner shows wear, inspect the full belt path before finishing the repair.

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. 78-1622, 781622, 781-622, 77-3200, 773-200, 773200

Compliance and Safety

Isolate the unit before service, because belts and driven components can move without warning. Check bearing condition, pulley alignment, and belt tracking before restart so the new pulley does not wear out early.

Trailer Applications

Grooved Idler Pulley Thermo King SLX suits matched SLX, SLXe, and SLXi trailer refrigeration units that use a grooved idler in the belt drive. Technicians often replace it during belt repairs, noise complaints, or drive inspections after the original pulley loses smooth rotation.

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 service parts for trailer refrigeration repairs, so you can source this pulley alongside the belt-drive items technicians often inspect in the same job. Browse Thermo King parts at ICS Trailers