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Service bulletin CMI-K6Z8G-06

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 id10176596
Published by NHTSA2020-06-22
Manufacturer's numberCMI-K6Z8G-06
Manufacturer's date2020-05-01
NHTSA componentEQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

NHTSA's summary

This is a representative Owner Letter to communicate an emissions recall. The enigne(s) are potentially eligible for an Emissions improvement calibration campaign and a Selective Catalytic Reduction (SCR) campaign.

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

Equipment and accessories, Labels and manuals

Vehicles listed
CUMMINS ISB6.7

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