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Service bulletin FSB-258-032

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 id10044078
Published by NHTSA2012-05-09
Manufacturer's numberFSB-258-032
Manufacturer's date2012-03-01
ReplacesFSB-258-032-1
NHTSA componentFUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP

NHTSA's summary

MACK: THE AFTERTREATMENT DIESEL EXHAUST FLUID (DEF) TANK FILLER NECK IS BEING REPLACED WITH AN IMPROVED FILLER NECK . *PE UPDATED 5/11/12. *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

Fuel system, Fuel tank

Vehicles listed
MACK CHU2010
MACK CXU2010
MACK GRANITE (GU)2012
MACK GU2010 to 2011
MACK LEU2010 to 2012
MACK MRU2010 to 2012
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.