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Service bulletin CALDDE01-001

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 id10198589
Published by NHTSA2021-06-29
Manufacturer's numberCALDDE01-001
Manufacturer's date2021-06-18
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

Vibration Damper Replacement. DD5 Engines built from 4/04/2017 through 3/30/2018.

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
FREIGHTLINER BUSINESS CLASS M22018 to 2019
THOMAS BUILT BUSES SAF-T-LINER C22018 to 2019

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