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Service bulletin C1366

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 id10085416
Published by NHTSA2016-12-02
Manufacturer's numberC1366
Manufacturer's date2013-06-06
NHTSA componentENGINE

NHTSA's summary

THIS CAMPAIGN AUTHORIZES THE UPFIT OF CERTAIN ENGINES WITH HEATED/INSULATED EXTERNAL CRANKCASE BREATHER COMPONENTS DUE TO POTENTIAL FREEZING THAT CAN OCCUR IN THE EXTERNAL CRANKCASE BREATHER SYSTEM.

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 ISX15

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