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Service bulletin SB-47-10

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 id10030461
Published by NHTSA2009-10-07
Manufacturer's numberSB-47-10
Manufacturer's date2009-05-01
NHTSA componentFUEL SYSTEM, OTHER:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS; FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS

NHTSA's summary

WESTERN STAR: VEHICLES EQUIPPED WITH AN MBE4000 ENGINE AND AN ALLIANCE FUEL/WATER SEPARATOR MAY HAVE INSUFFICIENT CLEARANCE BETWEEN THE ENGINE MOUNTED FUEL LINE AND THE FRAME RAIL MOUNTED FUEL/WATER SEPARATOR MOUNTING BRACKET. 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

Fuel system, Fuel hoses and lines

Vehicles listed
WESTERN STAR CONSTELLATION2001
WESTERN STAR HERITAGE1999

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