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Service bulletin SB-3033

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 id10034191
Published by NHTSA2010-10-25
Manufacturer's numberSB-3033
Manufacturer's date2010-03-01
NHTSA componentEQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

NHTSA's summary

MCI: BEARING BOX. A NEW BREATHER VENT ASSEMBLY KIT FOR THE TAG AXLE BEARING BOX USED ON THE G SERIES COACHES. THE KIT INCLUDES A NEW BREATHER VENT AND AN EXTENSION WHICH RAISES THE BREATHER VENT ABOVE THE BEARING BOX TO REDUCE POTENTIAL PLUGGING OF THE BEARING BOX VENT AND INCREASING THE LUBRICATION LEVEL IN THE BEARING BOX. 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

Equipment and accessories, Labels and manuals

Vehicles listed
MCI G41002004
MCI G45002004

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