Description

Overview

Thermo King Water Pump Belt MD TS keeps the water pump drive running on selected MD and TS refrigeration units built before 10/08. It suits older JD-II, KD-II, MD-II, MD-100, MD-200, MD-300, TS-200 and TS-300 applications, so it helps restore the correct front drive layout on units that still rely on this earlier belt arrangement. When the belt hardens, cracks or slips, coolant circulation and belt tracking can both suffer.

Features

• Fits selected Thermo King MD and TS units built before 10/08
• Covers JD-II, KD-II, MD-II, MD-100, MD-200, MD-300, TS-200 and TS-300 platforms
• Suits the water pump drive position used on earlier MD and TS layouts
• Replaces a worn belt before slip, glazing or edge wear becomes a bigger service problem

Specifications and Materials

Thermo King Water Pump Belt MD TS suits the water pump drive on selected MD and TS units built before 10/08. This belt sits in the water pump drive position rather than alternator or compressor locations, so matching the belt path matters before you order. Older MD and TS platforms also use different belt families across the range, because engine and unit layout change the drive setup. Part number: TK-78-1012.

Thermo King belts guide

Compatibility and Fitment

Check the unit family, build timing and water pump belt position before ordering, because Thermo King used more than one water pump belt across MD, TS and later T-Series platforms. 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. 78-1012, 781012, 78-0315, 780315, 78-315, 78315, 78-0679, 780679, 78-679, 78679, 77-2368, 772368, 2020B40H71, 2925B06H89, 5010048

Compliance and Safety

Inspect pulley alignment, tension and belt condition during installation, because a misaligned or loose belt can wear quickly and shed material into the drive area. After fitting, confirm the belt sits fully in the pulley grooves, then recheck tension after initial run time so the new belt settles correctly.

Trailer Applications

This belt suits transport refrigeration service work on older MD and TS units where the water pump belt forms part of the front drive system. It makes sense during coolant system repairs, water pump service or routine belt replacement, and it also helps when workshops freshen the front drive before an ageing belt fails in service. Because many older units stay in fleet use, this belt often gets replaced alongside other drive items during scheduled inspection.

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 service parts for transport refrigeration work, and you can browse Thermo King parts at ICS Trailers