Alternator to Water Pump Belt Thermo King SB High Mount
Alternator to Water Pump Belt Thermo King SB High Mount
$28.00
High mount alternator to water pump belt for Thermo King SB units with SE 2.2 engine applications, including SB-II, SB-II Max, SB-III and SB100/190, so you can match the correct drive position first before ordering.
Part number TK-78-0929-AM.
Description
Overview
This belt fits the alternator to water pump drive on selected Thermo King SB refrigeration units with the high mount alternator setup. It helps drive the charging and cooling system on matched SE 2.2 engine applications. It fits Thermo King SB-II and SB-II Max 30 and 50, SB-III 30, and SB100/190 units where the belt path matches this position.
Features
- Fits the high mount alternator to water pump drive on selected Thermo King SB units
- Covers SE 2.2 engine applications across SB-II, SB-II Max, SB-III and SB100/190 models
- Helps replace a worn, cracked or stretched belt in the correct drive position
- Uses ICS Trailers SKU TK-78-0929-AM as the customer-facing part number
Specifications and Materials
This belt suits the high mount alternator to water pump drive run on the listed Thermo King SB applications. Check the drive position carefully before ordering, because SB units use more than one belt path. Part number: TK-78-0929-AM. For general Thermo King belt guidance, see the Thermo King belts overview
Compatibility and Fitment
Check the belt position, unit series and engine layout before ordering, because this belt fits the high mount alternator to water pump run rather than other SB drive belts. Use these cross-reference numbers as matching references only: 78-0929, 780929, 780-929, 78-929, 78929, 2020B40-H42, 2020B40H42, 78-0285, 780285, AX45, 72224
Compliance and Safety
Inspect pulley alignment and belt condition during installation, and replace any belt that shows glazing, cracking or edge wear. After fitting, make sure the belt sits correctly in the pulley grooves and follow the unit service procedure for final tension checks where required.
Trailer Applications
This belt suits trailer refrigeration service work on Thermo King SB units that use the high mount alternator arrangement with the SE 2.2 engine family. It covers the listed SB-II, SB-II Max, SB-III and SB100/190 applications when the drive layout matches this belt position.
Cross-reference and Suitability
This part cross-references to the following numbers and compatible alternatives:
| 78-0929 | 780929 | 780-929 |
| 78-929 | 78929 | 2020B40-H42 |
| 2020B40H42 | 78-0285 | 780285 |
| AX45 | 72224 |
Why Choose ICS Trailers
ICS Trailers stocks Thermo King service parts for transport refrigeration work, so you can order this belt alongside other reefer maintenance items. Browse Thermo King parts at ICS Trailers
Online prices apply to website orders only. In-store pricing may differ.






