WenmarOpen by Wenmar Pro

Service bulletin WC-C-0957

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 id10033686
Published by NHTSA2010-09-10
Manufacturer's numberWC-C-0957
Manufacturer's date2009-11-13
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:DIESEL

NHTSA's summary

CUMMINS: AN AFTERTREATMENT INLET FAILURE ON NAVISTAR PROSTAR CHASSIS EQUIPPED WITH ISX CM871 ENGINES. COMPLETION OF THIS CAMPAIGN INCLUDES AN AFTERTREATMENT INLET SUPPORT BRACKET AS WELL AS A VEHICLE EXHAUST PIPE SUPPORT BRACKET BETWEEN THE TURBO OUTLET AND THE AFTER TREATMENT INLET. UNKNOWN MODEL YEARS. *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
CUMMINS ISX
CUMMINS ISX CM871
CUMMINS QSX15

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