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Service bulletin 24-4

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 id10025344
Published by NHTSA2008-07-30
Manufacturer's number24-4
Manufacturer's date2008-05-21
NHTSA componentPOWER TRAIN:DRIVELINE:CENTER SUPPORT BEARING

NHTSA's summary

KENWORTH SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. T170 DRIVELINE CENTERBEARING BRACKET CAMPAIGN. 67 T170S BUILT BETWEEN 06/26/07 AND 03/27/08. CENTERBEARINGS AND DRIVELINES ON CHASSIS LISTED WERE MOUNTED LOWER THAN KENWORTH SPECIFICATION WHICH CAN LEAD TO DRIVELINE VIBRATION AND/OR PREMATURE DRIVELINE U-JOINT WEAR. CSC WAS RECEIVED. *PE

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

Transmission and driveline

Vehicles listed
KENWORTH T1702007 to 2008

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