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Service bulletin SEPD166500

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 id10117889
Published by NHTSA2017-09-20
Manufacturer's numberSEPD166500
Manufacturer's date2013-09-16
NHTSA componentWHEELS:LUGS/NUTS/BOLTS/STUDS

NHTSA's summary

CT11 and CT13 Valve Cover Bolts - The valve covers on the CT11 and CT13 engines contain bolts that have different lengths.

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

Wheels, Wheel nuts and studs

Vehicles listed
CATERPILLAR CT6602012 to 2017

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