Description

Overview

Thermo King Belt Engine to Jackshaft SL fits Tier 2 engine units without electric motor and drives the engine to jackshaft position on compatible trailer refrigeration units. It transfers drive from the diesel engine to the jackshaft, so the accessory system can keep running with correct belt tracking and stable tension. When the existing belt slips, cracks or starts glazing, this replacement helps restore dependable drive performance.

Features

• Suits Tier 2 engine units without electric motor
• Covers the engine to jackshaft belt position
• Fits SL-100e, SL-200e, SL-400e and related Spectrum SL applications
• Useful during scheduled belt service or drive repairs

Specifications and Materials

Thermo King Belt Engine to Jackshaft SL covers the diesel engine to jackshaft belt position used in the Thermo King belt kit layout for supported SL units. It is sold here as an aftermarket replacement, and it sits alongside related fan and water pump belts in the same service group.

Part number: TK-78-1950-AM.

For unit service literature, use the Thermo King manuals library

Compatibility and Fitment

Check that the unit is a Tier 2 engine model without electric motor, then confirm you are replacing the engine to jackshaft belt rather than the separate fan or water pump belts in the same kit. 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. 78-1950, 781950, 781-950, 78-1987, 781987, 78-1968, 781968, 77-2937, 772937, 78-1904, 781904, 78-1271, 781271, 781-271, 2C39205H64, 78-1487, 781487, 781-487, 1E11111H52, CP10574

Compliance and Safety

Shut the unit down before fitting the belt, and keep clear of rotating pulleys and driven components during inspection. After installation, set belt tension correctly, confirm pulley alignment, and inspect belt tracking again after initial run time because poor alignment can shorten belt life.

Trailer Applications

Thermo King Belt Engine to Jackshaft SL suits refrigerated trailer fleets running SL-100e, SL-200e, SL-400e, SL-400e SR2 and Spectrum SL Tier 2 applications. It also makes sense as a workshop spare when the drive system needs a full belt service across the engine, fan and water pump positions.

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