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Service bulletin TSB140120-051315

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 id10087628
Published by NHTSA2017-01-03
Manufacturer's numberTSB140120-051315
Manufacturer's date2015-05-14
NHTSA componentEQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:DIESEL

NHTSA's summary

THIS TECHNICAL SERVICE BULLETIN DESCRIBES THE VERIFICATION AND RESOLUTION OF FAULT CODES 1921, 1922, 1981, 2754, 3322, 3375, 3376 AND 5383 CAUSED BY INSULATION BUILDUP ON THE AFTERTREATMENT DIESEL PARTICULATE FILTER (DPF) INLET FACE. THIS IS AN UPDATE TO A PREVIOUS COMMUNCATION.

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, Equipment and accessories

Vehicles listed
CUMMINS ISX12
CUMMINS ISX15

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