Description

Overview

Vibrasorber Discharge Thermo King SB SL is a discharge-side flexible hose for compatible Thermo King SB and SL refrigeration units. It sits in the hot gas line, so it helps absorb movement and vibration between connected components while the system runs. It also covers the before January 1991 and after January 1991 discharge configurations shown for this part family.

Features

• 470mm overall length with a 370mm flexible section
• Stepped end sizes with one end at 19mm OD / 17mm ID and the other at 21mm OD / 19mm ID
• Suits discharge hose replacement on compatible Thermo King SB and SL units
• Aftermarket replacement for worn, cracked, or leaking vibrasorber hose assemblies

Specifications and Materials

Vibrasorber Discharge Thermo King SB SL uses a corrugated metal vibrasorber section, so it can flex with line movement while handling discharge-side heat and vibration. Those listed sizes matter at ordering time because the hose length and both end dimensions need to match the existing line.

Part number: TK-66-5784-AM.

For Thermo King vibrasorber guidance, see the official Thermo King valves and vibrasorbers guide

Compatibility and Fitment

Match the discharge position, hose length, and both end sizes before ordering, especially if the unit falls around the January 1991 change point. Check the routing as well, because a similar hose can still foul nearby components if the ends or bend angle differ.

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. 66-3379, 663379, 66-5784, 665784, 665-784

Compliance and Safety

Keep the line free from twist when fitting the hose, and make sure the connections seat square before tightening. If the old vibrasorber failed from rubbing, hard vibration, or heat damage, correct the clamp or support issue first, otherwise the replacement can fail early. Then pressure-test the system before returning the unit to service.

Trailer Applications

This part suits trailer refrigeration repairs where the discharge line needs a flexible section between fixed pipework or other hard-mounted components. It is commonly replaced during hose leak repairs, compressor-side line work, or broader refrigeration service when the original vibrasorber has fatigued at the ends. It also suits older units where the hose has gone hard or stressed around the fittings after years of movement.

Cross-reference and Suitability

This part cross-references to or suits the following equivalent part numbers and compatible alternatives:

Why Choose ICS Trailers

Vibrasorber Discharge Thermo King SB SL suits the older SB and SL discharge hose jobs where the correct length and end sizing matter more than a generic hose substitute.

Browse Thermo King parts at ICS Trailers