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Service bulletin FSB 258-035

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 id10083016
Published by NHTSA2016-10-20
Manufacturer's numberFSB 258-035
Manufacturer's date2015-03-10
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM

NHTSA's summary

"AFTERTREATMENT DIESEL EXHAUST FLUID, (DEF) TANK VENT FILTER. MACK TRUCKS HAS INTRODUCED A DEF TANK VENT FILTER KIT DESIGNED FOR USE IN HARSH, ABRASIVE AND DIRTY ENVIRONMENTS. THIS FILTER SHOULD BE REPLACED WHEN THE VEHICLE AIR FILTER IS REPLACED, MINIMUM EVERY 12 MONTHS. "

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, Exhaust and emissions

Vehicles listed
MACK MACK

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