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Service bulletin 98052704B002

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 id601387
Published by NHTSA1998-08-03
Manufacturer's number98052704B002
Manufacturer's date1998-05-27
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

A REAR FRAME ARRANGEMENT AND ASSOCIATED PARTS ARE AVAILABLE THROUGH THE MACK PARTS SYSTEM TO REPLACE THE TRUNNION BRACKET ON AN SS440 OR SS441 SERIES SUSPENSION WITH AN S501 TRUNNION BRACKET. *YC

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

Engine

Vehicles listed
MACK DM SERIES
MACK DMM SERIES (the catalog's model; the bulletin names a series or trim of it)
MACK MR SERIES
MACK RD SERIES
MACK RM SERIES

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