Description

Overview

Thermo King Belt Blower to Alternator supports blower and alternator drive duties on compatible SLX, SLXe, SLXi and Spectrum trailer refrigeration units. It runs in the accessory drive path, so the unit can keep airflow and charging functions working properly during transport service. When the existing belt shows slip, noise, cracking or glazing, this replacement helps restore correct belt drive performance.

Features

• Suits SLX, SLXe, SLXi and Spectrum family applications
• Fits the blower to alternator belt position on the unit drive system
• Useful for routine belt replacement, breakdown repairs and workshop rebuilds
• Works alongside related belt service items when the full drive layout needs attention

Specifications and Materials

Thermo King Belt Blower to Alternator covers the blower to alternator belt position used across supported trailer refrigeration units. The listed application set includes SLXe-100, SLXe-400, SLXi and Spectrum belt kit references, while broader replacement listings also cover SLX 100, 200, 300 and 400 together with SLXe and SLXi variants.

Part number: TK-78-1945-AM.

See the Thermo King manuals library for unit service literature

Compatibility and Fitment

Check the unit series first, then confirm you are replacing the blower to alternator belt because these units also use separate water pump and compressor belts. 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. 78-1945, 781945, 78-1507, 781507, 781-507, 78-1744, 781744, 781-744, 78-1340, 781340, 781-340, 78-1108, 781108, 781-108, 78-1337, 781337, 781-337, 78-1831, 781831, 781-831, 78-1968, 781968, 78-1477, 781477

Compliance and Safety

Shut the unit down before fitting the belt, and keep hands clear of pulleys and rotating drive components. After installation, set the belt correctly, inspect pulley alignment, and recheck tension after initial run time because an incorrect belt setting can shorten service life.

Trailer Applications

Thermo King Belt Blower to Alternator suits refrigerated trailer fleets running SLX, SLXe, SLXi and Spectrum units where the blower and alternator drive path needs routine replacement. It also makes sense as a workshop spare when the unit already needs companion belts in the same drive system.

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 supplies transport refrigeration parts for working fleets, so you can source this belt from a supplier that understands Thermo King trailer service parts.

Browse Thermo King parts at ICS Trailers