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Service bulletin TSB260117

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 id11037035
Published by NHTSA2026-09-04
Manufacturer's numberTSB260117
Manufacturer's date2026-08-10
NHTSA componentENGINE

NHTSA's summary

This Technical Service Bulletin describes the verification and resolution steps for the nut holding down the ignition coil grounding wire on certain B6.7O engines which may cause the studded capscrew underneath it to rotate when trying to remove the nut during a service event, resulting in the ring terminal on the grounding wire connector rotating against the side of the ignition coil and breaking off from the grounding wire.

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

Vehicles listed
CUMMINS B6.7O

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