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Service bulletin WB-12-41

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 id10051591
Published by NHTSA2013-03-21
Manufacturer's numberWB-12-41
Manufacturer's date2013-01-01
ReplacesWB-12-41-A
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

PREVOST: WARRANTY INFORMATION PROVIDED REGARDING AVAILABILITY OF AN AUXILIARY COOLANT TANK, WHEN MAIN COOLANT SURGE TANK FILLED WITH TOO MUCH COOLANT AND AUXILIARY COOLANT TANK PREVENTS SPILLAGE DUE TO EXPANSION. MODEL 2010-2013 H3-41, H3-45 COACHES, H3 VIP MOTORHOMES. *PE UPDATED 3/26/13. *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

Vehicles listed
PREVOST H32010 to 2013
PREVOST H3-412010 to 2013
PREVOST H3-452010 to 2013

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