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Service bulletin E231

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 id10154339
Published by NHTSA2019-03-11
Manufacturer's numberE231
Manufacturer's date2018-12-19
NHTSA componentPOWER TRAIN

NHTSA's summary

Non-Safety Campaign: Vehicles bult with PACCAR MX-13 EPA17 engines with horsepower ratings of 405-455 and an HE400 turbo may experience component failures of the fey ring and chamfer bearing housing due to turbo high cycle times. Resolution is to replace the turbo and update engine software.

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
PACCAR MX-132017

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