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Service bulletin FSB 712-001

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 id10083166
Published by NHTSA2016-10-20
Manufacturer's numberFSB 712-001
Manufacturer's date2016-07-13
NHTSA componentSTRUCTURE

NHTSA's summary

ON SOME MACK GU TRUCKS MAY EXPERIENCE CRACKS IN THE DRIVER’S SIDE (LEFT SIDE), FORWARD, UPPER FRAME FLANGE AREA. MACK TRUCKS HAS IMPROVED THE DESIGN OF THE FRAME REINFORCEMENT PLATES. IF CRACKS APPEAR, FRAME REINFORCEMENTS ARE AVAILABLE FOR THE LEFT HAND SIDE, 8 MM AND 9.5 MM THICKNESS FRAME RAILS.

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

Body and frame

Vehicles listed
MACK MACK

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