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Service bulletin T1824

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 id10085686
Published by NHTSA2016-12-07
Manufacturer's numberT1824
Manufacturer's date2016-09-23
NHTSA componentENGINE

NHTSA's summary

THIS TEMPORARY REPAIR PRACTICE ADDRESSES THE REPLACEMENT OF ISL G PISTONS ON CERTAIN ENGINES. THIS FIELD IS AUTHORIZED TO REPLACE ALL PISTONS, LINERS, AND ROD BEARINGS IN THE ENGINE, IN THE EVENT THAT A WARRANTABLE PISTON FAILURE HAS OCCURRED

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 WESTPORT ISL G

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