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Service bulletin SB-389

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 id10047439
Published by NHTSA2012-11-28
Manufacturer's numberSB-389
Manufacturer's date2012-10-12
NHTSA componentELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR

NHTSA's summary

MOTOR COACH IND.: THE ALTERNATOR BEARING FAILS ON EXISTING RETENTION NUT DUE TO FAILURE OF PROPER TORQUE UTILIZED FOR LEECE NEVILLE ALTERNATOR PULLEY. MODELS D, E4500, J4500. 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

Electrical system, Alternator

Vehicles listed
MCI D SERIES
MCI E SERIES
MCI E45002012
MCI J SERIES
MCI J45002012

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