WenmarOpen by Wenmar Pro

Other Cummins B6.7 DEF Header O

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)
TypeOther
NHTSA id11010192
Published by NHTSA2024-11-07
Manufacturer's numberCummins B6.7 DEF Header O
Manufacturer's date2024-10-21
Campaign id or software versionCumminB6.7DEF
NHTSA componentENGINE

NHTSA's summary

Extended Warranty Policy for certain Cummins B6.7 engines for TBB vehicle DEF headers for EPA and CARB Emissions Reporting

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

Engine

Vehicles listed
THOMAS BUILT BUSES SAF-T-LINER EFX2017 to 2021
THOMAS BUILT BUSES SAF-T-LINER HDX2017 to 2021

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