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Service bulletin SB-724011

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 id10032590
Published by NHTSA2010-04-16
Manufacturer's numberSB-724011
Manufacturer's date2009-03-11
NHTSA componentSTRUCTURE:BODY:ROOF AND PILLARS

NHTSA's summary

MACK TRUCK: CAB ROOF HARNESS REPAIR AND PASS THROUGH HOLE MODIFICATION. ON CERTAIN TRUCK MODEL CHASSIS, THE POSSIBILITY EXISTS FOR THE CAB ROOF HARNESS TO RUB AGAINST THE EDGE OF THE PASS THROUGH HOLE WHERE THE HARNESS TRANSITIONS DOWN THE B POST ON THE LEFT HAND SIDE OF THE CAB. *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

Body and frame

Vehicles listed
MACK MRU2007 to 2009

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