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Service bulletin P-1672

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 id10026506
Published by NHTSA2008-11-04
Manufacturer's numberP-1672
Manufacturer's date2008-09-18
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

EXHAUST ROCKER ARM, COMBUSTION SEALING WASHER AND UNIT INJECTOR YOKE REPLACEMENT. *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

Vehicles listed
MACK CHN2008
MACK CHU2008
MACK CL2008
MACK CT2008
MACK CTP2008
MACK CV2008
MACK CXN2008
MACK CXP2008
MACK CXU2008
MACK GU2008 to 2009
MACK LEU2008
MACK MRU2008

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

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