WenmarOpen by Wenmar Pro

Service bulletin SF539 TBB SF539

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10157993
Published by NHTSA2019-04-08
Manufacturer's numberSF539 TBB SF539
Manufacturer's date2019-02-13
NHTSA componentEQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

NHTSA's summary

SF539 TBB SF539 ? Termination Date Extended

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Equipment and accessories, Labels and manuals

Vehicles listed
THOMAS BUILT BUSES SAF-T-LINER C22008 to 2011

Listing a model year does not mean every vehicle of it is concerned: the document says which.