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Service bulletin SB-333

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 id10031744
Published by NHTSA2010-01-13
Manufacturer's numberSB-333
Manufacturer's date2009-09-13
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

MOTOR COACH INC.: MAY EXPERIENCE COMPRESSOR DISCHARGE PORT DAMAGE DUE TO LOOSE DISCHARGE FITTING. DETERIORATION OF THE 0-RING DUE TO TEMPERATURE. COACHES WITH CATERPILLAR ENGINES EQUIPPED WITH A BA922 COMPRESSOR TO REPLACE THE EXISTING DISCHARGE FITTING (HAVING A BLACK COLORED NITRILE O-RING) WITH A NEW FITTING HAVING A BROWN COLORED VITON O-RING HAVING A HIGHER TEMPERATURE RATING. 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

Vehicles listed
MCI D2000 to 2008
MCI D SERIES
MCI D SERIES1998

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