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Service bulletin SB233021

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 id620026
Published by NHTSA2001-07-09
Manufacturer's numberSB233021
Manufacturer's date2001-03-20
NHTSA componentFUEL SYSTEM, GASOLINE:CARBURETOR SYSTEM

NHTSA's summary

INFORMATION ON THE NEW ANTI-SQUEAK RUBBER FOR THE AIR CLEANER MOUNTING STRAPS RELEASED TO ADDRESS THE ISSUE OF MOUNTING STRAP RUST. *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

Fuel system

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

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