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Service bulletin WC-C-1366

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 id10054188
Published by NHTSA2013-12-30
Manufacturer's numberWC-C-1366
Manufacturer's date2014-08-15
ReplacesWC-C-1366-A
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV); ENGINE

NHTSA's summary

CUMMINS: THE EXTERNAL CRANKCASE BREATHER SYSTEM, OF ENGINE, HAS A POTENTIAL OF FREEZING AND AUTHORIZATION IS GIVEN FOR FULL PRODUCTION FOR HEATED/INSULATION OF EXTERNAL CRANKCASE BREATHER SYSTEM COMPONENTS TO UPLIFT ENGINE. MODEL ISX15 CM2350. *PE UPDATED 2/3/15. *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, Exhaust and emissions, Crankcase ventilation (PCV)

Vehicles listed
CUMMINS ISX15

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