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Service bulletin 8647

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 id10006076
Published by NHTSA2004-04-15
Manufacturer's number8647
Manufacturer's date2004-02-09
NHTSA componentELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR

NHTSA's summary

PRODUCT SUPPORT PROGRAM FOR INSTALLING A NEW ALTERNATOR BRACKET ON CERTAIN C-12 ON HIGHWAY TRUCK ENGINES. CATERPILLAR SERVICE LETTER. *TT

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

Electrical system, Alternator

Vehicles listed
UNKNOWN UNKNOWN1

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