Service bulletins for the 2007 Peterbilt 320
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.
20 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Cooling system are shown. Show all
| 408-2 | 2008-07-29. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. 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 |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.