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Service bulletin 408-1

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 id10025308
Published by NHTSA2008-07-28
Manufacturer's number408-1
Manufacturer's date2008-06-27
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM

NHTSA's summary

PETERBILT SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. 408-1 CLEAN GAS INDUCTION (CGI) AND MAIN EXHAUST PIPE COUPLINGS. THIS FIELD REPAIR NOTICE IS APPLICABLE TO PETERBILT VEHICLES BUILT WITH CATERPILLAR 2007 EMISSIONS COMPLIANT ENGINES. CERTAIN VEHICLES WITH 2007 EMISSION COMPLIANT CATERPILLAR ENGINES HAVE PIPE COUPLINGS LOCATED IN THE CLEAN GAS INDUCTION (CGI) AND THE MAIN EXHAUST SYSTEM THAT MAY PREMATURELY FAIL. CSC WAS RECEIVED. *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, Exhaust and emissions

Vehicles listed
PETERBILT PETERBILT

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