# Service bulletin SB2023

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11032308
- Published by NHTSA: 2026\-05\-06
- Manufacturer's number: SB2023
- Manufacturer's date: 2026\-04\-24
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

Beginning April 22, 2026, all T\-90 units will be shipped with a new exhaust tube clamp PN 940036. As Thermo King works through existing production inventory, the original clamp that is pre\-installed on the exhaust tube must be removed and discarded, then replaced with the new clamp PN 940036 and torque clamp to 9.6 ft.lb.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11032308-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11032308-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Vehicles listed

- THERMO KING T\-1090
- THERMO KING T\-1090 SPECTRUM
- THERMO KING T\-590
- THERMO KING T\-690

JSON: [/v1/bulletins/11032308](/v1/bulletins/11032308)

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