Description

Overview

Optibelt alternator to water pump belt suits Thermo King SB-200 and SB-210 multi-temp refrigeration applications where the alternator drives the water pump. It keeps belt drive transfer steady between pulleys, so charging and coolant circulation stay in step during normal unit operation. It also matches setups using the multi-temp alternator arrangement with a 3.38 inch pulley.

Features

• Single-band drive belt for alternator-to-water-pump duty
• Cogged chloroprene construction for flexible belt routing
• Suited to multi-temp belt layouts with a 3.38 inch pulley arrangement
• Used in Thermo King refrigeration service work across matched SB applications

Specifications and Materials

The Optibelt alternator to water pump belt uses a single-band cogged profile and chloroprene belt construction. Match the installed belt path and pulley arrangement before ordering, especially on units that have had previous drive repairs. Part number: TK-78-1360-OP.

See the Thermo King belt guide for belt construction and service context

Compatibility and Fitment

Check the existing belt route, pulley width, and unit model before ordering, because multi-temp Thermo King layouts can vary across service history. 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. 78-1360, 781360, TK-78-1360, TK781360, TK-78-1360-AM, TK781360AM, 78-837, 78837, 50-01001-03, 500100103, 50-60198-47, 506019847, 50-00204-01, 500020401, CP10707, 10707

Compliance and Safety

Install the belt with correct tension and pulley alignment, because forcing a belt over a pulley can damage the cord structure and shorten service life. Recheck tension after initial run-in, and replace worn pulleys if the belt shows glazing, frayed edges, or uneven side wear.

Trailer Applications

This belt is used in transport refrigeration drive systems where the alternator and water pump share the same belt path on Thermo King multi-temp units. It suits SB-200 and SB-210 service work, and it is also commonly listed against related SB and Spectrum applications when the pulley setup matches the removed belt.

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 stocks Thermo King refrigeration service parts, so you can pick up this Optibelt alternator to water pump belt alongside other drive components needed for the same repair.

Browse Thermo King parts at ICS Trailers