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Service bulletin PI 0856

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 id10082806
Published by NHTSA2016-10-18
Manufacturer's numberPI 0856
Manufacturer's date2014-12-15
NHTSA componentENGINE

NHTSA's summary

"ROCKER ARMS, REPLACEMENT AND INJECTOR RETORQUE. MACK TRUCKS HAS AUTHORIZED REPLACEMENT OF THE EXHAUST BRAKE ROCKER ARMS AND INJECTOR RETORQUE ON VEHICLES BUILT BETWEEN 09/03/2014 AND 10/27/2014 WITH MACK MP10 US2014 ENGINES. THE ENGINE BRAKE ROCKER ARMS MUST BE CHANGED ON ALL VEHICLES INVOLVED IN THIS CAMPAIGN. "

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 TD2015

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