Description

Overview

Water Pump Belt Thermo King SL SLX Precedent drives the water pump on matched Thermo King refrigeration unit applications. When this belt wears, hardens or starts to slip, coolant flow can suffer, so replacing it early helps keep the engine-driven cooling system working properly. This belt suits water pump service work across selected SL, SLX and Precedent layouts that use Yanmar 482 and 486 engine families.

Features

• Fits the water pump belt position on matched Thermo King SL, SLX and Precedent applications
• Covers selected Yanmar 482, 4TNE84, 486, 4TNE88, 486E and 486V engine layouts
• Uses the Optibelt version under the ICS sellable SKU
• Helps workshops match older belt references still found in service notes and parts history

Specifications and Materials

This Optibelt version gives you a single water pump belt for matched Thermo King applications. Part number: TK-78-1968-OP.

Use the Thermo King manuals library for unit identification and service literature

Compatibility and Fitment

Check the installed belt position before ordering, because nearby belt runs can serve different accessories on the same unit family. Water Pump Belt Thermo King SL SLX Precedent fits matched water pump applications on Thermo King SL, SLX and Precedent units, including SB-210 to SB-330 Tier 2 engine applications and Precedent C600, S600, G-600 and G-700 layouts where the fitted water pump drive matches. It also suits selected Yanmar 482, 4TNE84, 486, 4TNE88, 486E and 486V engine arrangements used in those unit families. 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. 78-1968, 781968, 78-1340, 781340, 78-1108, 781108, 78-1337, 781337

Compliance and Safety

Inspect pulley condition, alignment and tensioner operation before fitting the new belt, then recheck belt tracking after the first run-up. If the old belt shows glazing, rib damage or edge wear, inspect the water pump pulley and neighbouring drive components as well so the new belt does not run against worn hardware.

Trailer Applications

The water pump suits transport refrigeration service work where the engine-driven water pump belt needs direct replacement without changing other accessory belt positions. It supports fleet maintenance across SL, SLX and Precedent platforms, and it also helps when older workshop records still carry earlier Thermo King water pump belt references. That makes it a practical fit for stores and workshops handling mixed Thermo King unit history across routine maintenance and corrective repair work.

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 lists Thermo King service parts against real unit families and older reference trails, which helps workshop buyers sort belt position issues faster during repairs. Browse more Thermo King parts at ICS Trailers