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Service bulletin PI-677

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 id10032012
Published by NHTSA2010-02-04
Manufacturer's numberPI-677
Manufacturer's date2009-04-03
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER

NHTSA's summary

MACK TRUCK: TURBOCHARGER AND TURBOCHARGER MOUNTING HARDWARE REPLACEMENT. MACK TRUCKS HAS AUTHORIZED REPLACEMENT OF THE TURBOCHARGER AND MOUNTING HARDWARE ON CERTAIN MP10 ENGINE EQUIPPED TD MODEL CHASSIS. DEALERS HAS LIST OF AFFECTED VEHICLES. NO MODELS OR MODEL YEARS LISTED. *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

Engine, Turbocharger or supercharger

Vehicles listed
MACK MACK

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