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Service bulletin 47-8

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 id10025541
Published by NHTSA2008-08-19
Manufacturer's number47-8
Manufacturer's date2008-04-01
NHTSA componentFUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL

NHTSA's summary

DAVCO FUEL PRO 382 AND DIESEL PRO 232/233 FUEL/WATER SEPARATOR TESTING. AIR OR GAS BUBBLES, WHICH MAY BE VISIBLE IN THE CLEAR FILTER COVER INDICATE HARMFUL LEAKS, AND CAN CAUSE IMPAIRED ENGINE PERFORMANCE. MODEL YEARS UNKNOWN. *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

Vehicles listed
WESTERN WESTERN STAR1989
WESTERN STAR WESTERN STAR

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