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Service bulletin C1517A

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 id10089533
Published by NHTSA2017-01-26
Manufacturer's numberC1517A
Manufacturer's date2014-07-29
NHTSA componentENGINE

NHTSA's summary

THIS CAMPAIGN ADDRESSES UPPER ROD BEARING SHELLS SUSCEPTIBLE TO MATERIAL DELAMINATION IN CERTAIN ENGINES. THIS ACTION AUTHORIZES THE REPLACEMENT OF ALL UPPER AND LOWER ROD BEARING SHELLS IN AFFECTED ENGINES. THIS IS A REVISION TO A PREVIOUS COMMUNICATION.

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

Vehicles listed
CUMMINS ISX
CUMMINS SIGNATURE

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