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Service bulletin PI-678

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 id10032014
Published by NHTSA2010-02-04
Manufacturer's numberPI-678
Manufacturer's date2009-04-03
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER

NHTSA's summary

MACK TRUCK: EXHAUST MANIFOLD GASKETS, TURBOCHARGER AND TURBOCHARGER MOUNTING HARDWARE REPLACEMENT. MP10 ENGINE EQUIPPED CHASSIS. 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, Exhaust and emissions, Exhaust manifold, pipes and muffler, Turbocharger or supercharger

Vehicles listed
MACK MACK

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