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Service bulletin TSB170108-100920

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 id10123207
Published by NHTSA2017-11-14
Manufacturer's numberTSB170108-100920
Manufacturer's date2017-10-23
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

This Technical Service Bulletin describes the verification and resolution to cracks found on single module aftertreatment selective catalytic reduction (SCR) insulation heat shields. The aftertreatment SCR is not to be replaced for insulation heat shield cracking. Aftertreatment SCR insulation heat shield cracking does not impact emissions or engine operation and is an aesthetic issue only.

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

Electrical system

Vehicles listed
CUMMINS X15

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