WenmarOpen by Wenmar Pro

Service bulletin FSB-437-002-01

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 id10044327
Published by NHTSA2012-06-12
Manufacturer's numberFSB-437-002-01
Manufacturer's date2012-05-01
NHTSA componentPOWER TRAIN:MANUAL TRANSMISSION; ENGINE

NHTSA's summary

MACK: WHERE THE TRANSMISSION AND/OR ENGINE SUPPORTS ARE ATTACHED, UNDER SEVERE OPERATING CONDITIONS, CRACKS HAVE BEEN LOCATED AND THE MOUNTING BRACKETS , WITH NEW FRAMES, SHOULD BE REPLACED. MODELS LEU, MRU, MP7. MODEL YEARS 2008-2012. *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, Transmission and driveline, Manual transmission

Vehicles listed
MACK LEU2008 to 2012
MACK MRU2008 to 2012

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