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Service bulletin TSB240116

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 id11019289
Published by NHTSA2025-06-06
Manufacturer's numberTSB240116
Manufacturer's date2025-05-31
NHTSA componentENGINE

NHTSA's summary

This Technical Service Bulletin describes the verification and resolution steps for the engine vibration damper on Peterbilt 520 vehicles in refuse applications which may possess insufficient front-end accessory drive system force dispersion capability, resulting in broken idler brackets, broken belts or belts separating from the front-end accessory drive system. This is an update to a previously submitted communication.

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 L9

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