WenmarOpen by Wenmar Pro

Service bulletin SB-20-79

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 id10055827
Published by NHTSA2014-07-24
Manufacturer's numberSB-20-79
Manufacturer's date2014-06-01
ReplacesFSB-20-79-A
NHTSA componentENGINE

NHTSA's summary

CUMMINS (FREIGHTLINER): INFORMATION CONCERNING A PREMATURE BELT WEAR ON CUMMINS ISC/ISL. THERE MAY BE FRAYING OR SHREDDING ON BUSINESS CLASS M2 AND 108SD MODELS. *JS UPDATED 2/20/15. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine

Vehicles listed
FREIGHTLINER FREIGHTLINER

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