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Service bulletin PI-0850

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 id10055988
Published by NHTSA2014-08-08
Manufacturer's numberPI-0850
Manufacturer's date2014-05-01
NHTSA componentEQUIPMENT

NHTSA's summary

MACK TRUCK: DUE TO AN INCORRECT INSTALLATION OF FRONT AXLE U BOLT WEDGE, CAUSED THE U-BOLTS TO BEND WOULD NEED REPLACEMENT OF THE U-BOLTS AND NUTS. MODEL CHU. *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

Equipment and accessories

Vehicles listed
MACK CHU2013 to 2014

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