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Service bulletin FSB 234-018

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 id10083083
Published by NHTSA2016-10-20
Manufacturer's numberFSB 234-018
Manufacturer's date2014-06-25
NHTSA componentFUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY

NHTSA's summary

MACK TRUCKS HAS INTRODUCED A NEW FUEL TANK VENTILATION FILTER MOUNTING SLEEVE (PART NUMBER 21043123) THAT MOUNTS ON THE OUTSIDE OF THE FRAME RAIL USING THE FUEL TANK J BRACKET HUCK FASTENERS. THE FUEL TANK VENT FILTER HAS BEEN IMPLEMENTED FOR INCREASED PROTECTION AGAINST FUEL INJECTOR TIP EROSION.

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 MACK

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