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Service bulletin 722-003-01

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 id10058014
Published by NHTSA2015-07-23
Manufacturer's number722-003-01
Manufacturer's date2015-04-01
NHTSA componentSUSPENSION

NHTSA's summary

MACK TRUCKS INC.: FIELD SERVICE BULLETIN TRUCKS: THE TWIN Y SUSPENSION, AIR SPRING REQUIRES REPLACEMENT ON SOME MACK TRUCKS BUILT BETWEEN 3/30/2015 ON CERTAIN APPLICATIONS CHU, CXU, GU,TD. *LJ

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

Suspension

Vehicles listed
MACK MACK

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