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Service bulletin SB-31-7

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 id10031844
Published by NHTSA2010-01-13
Manufacturer's numberSB-31-7
Manufacturer's date2009-08-01
NHTSA componentSTRUCTURE:FRAME AND MEMBERS

NHTSA's summary

WESTERN STAR TRUCK: 5 PIECE BACK OF CAB SERVICE CROSSMEMBER. 5 PIECE BOLTED SERVICE CROSSMEMBERS ARE AN IMPROVED, MORE DURABLE SERVICE REPLACEMENT FOR THE TUBULAR BACK OF CAB CROSSMEMBERS. FOLLOW STEPS TO REPLACE A TUBULAR BACK OF CAB CROSSMEMBER, WITH A 5 PIECE SERVICE CROSSMEMBER. *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

Body and frame

Vehicles listed
WESTERN STAR CONSTELLATION
WESTERN STAR CONSTELLATION1995 to 1999
WESTERN STAR CONSTELLATION2001

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