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Service bulletin 408-2

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 id10025321
Published by NHTSA2008-07-29
Manufacturer's number408-2
Manufacturer's date2008-05-14
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM

NHTSA's summary

PETERBILT SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. MODEL 320 LOW COOLANT SENSOR. THIS FIELD REPAIR NOTICE IS APPLICABLE TO CERTAIN PETERBILT MODEL 320 VEHICLES BUILT BETWEEN OCTOBER 4, 2007 AND JANUARY 24, 2008 WITH CATERPILLAR C13 ENGINES. 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, Cooling system

Vehicles listed
PETERBILT 3202007, 2008

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