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Service bulletin IK-1900136

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 id10036654
Published by NHTSA2011-04-06
Manufacturer's numberIK-1900136
Manufacturer's date2010-09-10
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:DIESEL

NHTSA's summary

NAVISTAR INT'L: DEVELOPED IN RESPONSE TO REPORTS OF INTERMITTENT OR INOPERABLE FRONT BLOWER MOTORS ON PROSTAR AND LONESTAR MODELS BUILT 12/10/07-12/04/09. PROVIDES GENERAL TROUBLESHOOOTING PROCEDURE FOR THE HVAC BLOWER CIRCUIT THAT CAN BE USED FOR ALL HPV MODELS BUILT AFTER 12/10/07. DURASTAR, TRANSTAR AND WORKSTAR MODEL. *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
INTERNATIONAL DURASTAR2009
INTERNATIONAL LONESTAR2008 to 2009
INTERNATIONAL PROSTAR2007 to 2009
INTERNATIONAL WORKSTAR2011
INTL TRANSTAR2007

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