# Service bulletin SB877\-1

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: 11027020
- Published by NHTSA: 2026\-01\-06
- Manufacturer's number: SB877\-1
- Manufacturer's date: 2025\-12\-13
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

T\-90 units are now shipped with a three\-piece sill gasket set included in the installation kit. The gasket set must be installed on the unit before mounting it onto the truck box. This procedure has also been updated in the T\-90 Single\-Temp Installation Manual TK 56700.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11027020-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11027020-9999.pdf)

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

## Vehicles listed

- THERMO KING T\-1090
- THERMO KING T\-590
- THERMO KING T\-690
- THERMO KING T\-890

JSON: [/v1/bulletins/11027020](/v1/bulletins/11027020)

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