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Service bulletin FSB 813-001

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 id10078846
Published by NHTSA2016-08-23
Manufacturer's numberFSB 813-001
Manufacturer's date2016-05-29
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM

NHTSA's summary

EXHAUST MOUNTING REINFORCEMENT, TO ADDRESS CONCERNS OF B-PILLAR CRACKS FORMING AT THE UPPER EXHAUST MOUNTING ON CERTAIN MACK CHU VEHICLES, A NEW REINFORCEMENT HAS BEEN DEVELOPED WHICH IMPROVES THE DURABILITY OF THE B-PILLAR.

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.