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Service bulletin FSB-437-001

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 id10043094
Published by NHTSA2012-02-22
Manufacturer's numberFSB-437-001
Manufacturer's date2011-09-01
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER

NHTSA's summary

MACK TRUCK: THE EASY INSTALLATION OF ALLISON TRANSMISSION AND PREVENTING BINDING OF TORQUE CONVERTER PILOT DURING THERMAL EXPANSION CYCLE OF NORMAL OPERATION BY USING HIGH TEMPERATURE MOLYBDENUM DISULFIDE GREASE. *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

Transmission and driveline, Automatic transmission, Torque converter

Vehicles listed
MACK CH2007
MACK CHN2007, 2008
MACK CL2007, 2008
MACK CT2007 to 2008
MACK CTP2007 to 2008
MACK CV2007 to 2008
MACK CX2007
MACK CXN2007 to 2008
MACK CXP2007 to 2008
MACK DM2006
MACK MR2007
MACK RD SERIES

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