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Service bulletin 122003

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 id10020306
Published by NHTSA2006-09-12
Manufacturer's number122003
Manufacturer's date2006-08-02
Replaces122003
NHTSA componentSTRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS

NHTSA's summary

FRAME TIE BAR MOUNTING BRACKETS - CHN MODEL CHASSIS. MACK. *TT

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 CHN2002, 2003, 2004, 2005, 2006, 2007

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

Other bulletins for the same vehicles and component
M-451-0012022-09-01. Service bulletin. 2007 Document reformatted to be published as a TSB in Impact. Updated Crossmember for improved clearance.
M-711-0022022-09-01. Service bulletin. 2008 Document reformated to be published as a TSB in Impact. Frame reinforcement plate.
SB-1210422008-09-13. Service bulletin. MACK TRUCK: CRACKS IN UPPER FRAME FLANGE AT STEERING GEAR CUT-OUT - ALL CHN MODELS. (NOT APPLICABLE TO MACK TRUCKS AUSTRALIA). *PE