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Service bulletin ATC1906A

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 id10117349
Published by NHTSA2017-09-14
Manufacturer's numberATC1906A
Manufacturer's date2017-06-20
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)

NHTSA's summary

This Account Team Coverage (ATC) is being issued to address plugging of the Exhaust Gas Recirculation (EGR) coolers and EGR Valves. This ATC authorizes certified repair locations to replace the valve stem seals on certain ISL CM2350 engines. The EGR cooler and/or the EGR valve are not covered under this field action, and must be troubleshot and repaired separately.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Exhaust and emissions, EGR valve

Vehicles listed
CUMMINS ISL

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