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Service bulletin SB-374

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 id10043707
Published by NHTSA2012-04-23
Manufacturer's numberSB-374
Manufacturer's date2012-01-13
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN

NHTSA's summary

MCI: THE MANUFACTURING PROCESS OF FAN CLUTCH COOLING RING FINS MAY CAUSE COACHES TO EXPERIENCE MISSING PORTIONS AND/OR STRESS CRACKS. NO MODEL YEARS LISTED. *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

Engine, Cooling fan, Cooling system

Vehicles listed
MCI E SERIES2010 to 2012
MCI E45002010 to 2012
MCI J45002010 to 2012

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