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Service bulletin WB07-12

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 id10043752
Published by NHTSA2012-04-25
Manufacturer's numberWB07-12
Manufacturer's date2007-12-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:DIESEL; ENGINE AND ENGINE COOLING:COOLING SYSTEM

NHTSA's summary

REPLACE THE PIPE CONNECTING THE TURBOCOMPRESSOR TO THE CHARGE AIR COOLER. POSSIBILITY THAT THE PIPE STRIKES AGAINST THE RADIATOR FAN DRIVE MECHANISM SUPPORT. ABRASION OR PERFORATION COULD RESULT AND THUS RESULT IN DAMAGE TO DIESEL PARTICULATE OR LOSS OF ENGINE PERFORMANCE. ALSO INCLUDED MODEL VIP-45 MTH. MODEL YEAR 2007. *JS

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
PREVOST H3-412008
PREVOST H3-452008

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