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Service bulletin SB-DN09-0001

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 id10028964
Published by NHTSA2009-06-08
Manufacturer's numberSB-DN09-0001
Manufacturer's date2009-07-15
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

CUMMINS ENGINE: FROZEN BREATHERS GENERATING MULTIPLE FAULT CODES: WHEN A BREATHER FREEZES, ENGINE CAN NOT VENT PROPERLY AND CRANKCASE PRESSURE CAN INCREASE. ENGINES ISM AND ISX. MODEL AND MODEL YEARS UNKNOWN. *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 ISM
CUMMINS ISX

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