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Service bulletin K32830643

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 id10175998
Published by NHTSA2020-06-03
Manufacturer's numberK32830643
Manufacturer's date2020-05-13
NHTSA componentSTRUCTURE:FRAME AND MEMBERS; SUSPENSION

NHTSA's summary

Frame Or Cab Lean - Gen II Chassis

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Body and frame, Suspension

Vehicles listed
MACK GU
MACK LR

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