WenmarOpen by Wenmar Pro

Service bulletin FSB-258-031

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 id10043812
Published by NHTSA2012-04-27
Manufacturer's numberFSB-258-031
Manufacturer's date2012-02-01
NHTSA componentFUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:MOUNTING

NHTSA's summary

MACK: ON CERTAIN MACK VEHICLES BUILT BEFORE 2/13/2012, THE FRONT CHASSIS TO UREA TANK CONNECTION, LOCATED ON THE SIDE OF THE DEF TANK MAY RUB MOUNTING BRACKET OR NOT STAY SECURED. *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

Fuel system, Fuel tank

Vehicles listed
MACK CHU2006 to 2010
MACK CXU2006 to 2010
MACK GRANITE (GU)2012
MACK GU2006 to 2011
MACK PINNACLE (CHU)2011 to 2012
MACK PINNACLE (CXU)2011 to 2012
MACK TD2012

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