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Service bulletin FSB-221-009

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 id10051567
Published by NHTSA2013-03-19
Manufacturer's numberFSB-221-009
Manufacturer's date2013-05-01
ReplacesFSB-221-009-2
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS

NHTSA's summary

MACK TRUCKS: HOSE, ENGINE OIL FILL TUBE. ENGINES BUILT BEFORE FEBRUARY 11, 2013 MAY EXHIBIT MINOR OIL SEEPAGE FROM THE ENGINE OIL FILLER TUBE HOSE OR DISPLAY STRESS CRACKS IN THE HOSE. *JS UPDATED 7/3/13. *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, Cooling system

Vehicles listed
MACK LEU2007 to 2013
MACK MRU2007 to 2013

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