Skip to product information
Electric Motor-to-Compressor Belt 78-1686 for Thermo King - Northline Parts

Electric Motor-to-Compressor Belt 78-1686 for Thermo King T-600R, T-800R and T-680R transport refrigeration units

SKU: NLT2T05006
$73.19 In Stock
$73.19
Sale price  $73.19 Regular price 
Ships for free in 2–4 business days.
This replacement belt connects the motor to the compressor on compatible Thermo King refrigeration units. Reference 78-1686 identifies the intended drive-belt application.
Estimated delivery between
Shop at Northline Parts Best Customer Service Best Online Parts

Let Northline Parts Do the Heavy Lifting for You!

Not sure which part you need? Our team can help you find the right replacement.

Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT

Live Chat: Available 24/7

I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model

Thermo King T-600R, T-800R and T-680R transport refrigeration units.

Product Overview

This belt drives the refrigeration compressor from the associated motor. Aging rubber, poor tension or pulley misalignment can cause squealing, slipping or belt failure.

Key Features & Performance

  • Component: Electric Motor-to-Compressor Belt
  • Purpose: Transfers rotational power between the specified motor and compressor pulley.
  • Primary reference: 78-1686

OE / Reference Numbers

  • 78-1686

Common Reasons for Replacement

Belt cracking, glazing, squealing or broken drive belt.

Fitment & Installation Notes

Match 78-1686 to the exact unit version, pulley path and belt profile.

Frequently Asked Questions

Is this a genuine OEM part? No. This listing is for a replacement part unless explicitly described as genuine OEM. Reference numbers identify the intended application.

How do I confirm the right replacement? Match 78-1686 to the exact unit version, pulley path and belt profile.

Part Summary

keywords: Electric Motor-to-Compressor Belt, 78-1686, Thermo King Electric Motor-to-Compressor Belt, Electric Motor-to-Compressor Belt 78-1686 for Thermo King T-600R, T-800R and T-680R transport refrigeration units, Electric Motor-to-Compressor Belt replacement, motor vehicle climate control

Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.

Customers also purchased