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Service bulletin T1413

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 id10085566
Published by NHTSA2016-12-06
Manufacturer's numberT1413
Manufacturer's date2013-11-05
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS; ENGINE

NHTSA's summary

THIS CAMPAIGN ADDRESSES ACCESSORY DRIVE BELT ISSUES CAUSED BY FRONT END PULLEY SYSTEM MISALIGNMENT ON CERTAIN ENGINES INSTALLED IN GILLIG TRANSIT BUSES. THE RUBBER DAMPER IS BEING REPLACED BY THE VISCOUS DAMPER AND WILL IMPROVE PULLEY SYSTEM ALIGNMENT.

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, Drive belts

Vehicles listed
CUMMINS ISL9

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