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Service bulletin C1613

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 id10087673
Published by NHTSA2017-01-03
Manufacturer's numberC1613
Manufacturer's date2015-04-07
NHTSA componentENGINE

NHTSA's summary

THIS CAMPAIGN IS BEING ISSUED TO ADDRESS PLUGGING OF THE EGR COOLERS AND EGR VALVES RESULTING IN FC1896 AND/OR FC3382 ON CERTAIN ENGINES IN TRANSIT BUS APPLICATIONS. THIS CAMPAIGN AUTHORIZES CERTIFIED REPAIR LOCATIONS TO REPLACE THE VALVE STEM SEALS, AND IF REQUIRED, UPDATE THE ECM CALIBRATION.

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 ISL9

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