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Service bulletin SB 403

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 id10119157
Published by NHTSA2017-10-15
Manufacturer's numberSB 403
Manufacturer's date2014-03-18
NHTSA componentENGINE

NHTSA's summary

This Service Bulletin informs affected customers that the diesel particulate filter (DPF) cradle may exhibit signs of fatigue and cracking on model year 2012-2014 MCI J4500 model coaches equipped with DD13 engine, and that MCI will remedy the affected coaches at no cost to the customers.

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
MCI J45002012 to 2014

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