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Service bulletin FSB 373-022

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 id10110385
Published by NHTSA2017-08-04
Manufacturer's numberFSB 373-022
Manufacturer's date2016-11-14
NHTSA componentEQUIPMENT:MECHANICAL; ENGINE AND ENGINE COOLING

NHTSA's summary

The engine harness on MACK MP7 US2015 engines built between March 1, 2015 and September 2, 2016 may be making contact with the air compressor head and rubbing through.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Equipment and accessories

Vehicles listed
MACK CXU2016 to 2017
MACK GU2016 to 2017
MACK LEU2016 to 2017
MACK MRU2016 to 2017

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