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Service bulletin 23KWG

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 id10245642
Published by NHTSA2023-12-02
Manufacturer's number23KWG
Manufacturer's date2023-11-08
NHTSA componentPOWER TRAIN

NHTSA's summary

On certain Kenworth K270/K370 chassis equipped with Dana SPL100 drivelines, the driveline tube seam weld may separate or tear under certain stress loads, resulting in driveline separation and sudden loss of drive power, which in turn may increase the risk of a crash. Repair parts and repair procedure are now available.

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

Transmission and driveline

Vehicles listed
KENWORTH K2702023
KENWORTH K3702023

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