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Service bulletin FSB 217-004

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 id10082780
Published by NHTSA2016-10-18
Manufacturer's numberFSB 217-004
Manufacturer's date2015-08-07
NHTSA componentENGINE

NHTSA's summary

OIL PAN SEALING RING, REPLACEMENT. SOME MACK VEHICLES EQUIPPED WITH MP8 ENGINES BUILT SINCE JANUARY 2010 REPORT OIL LEAKING AT THE DRAIN PLUG INSERT IN THE 13L PLASTIC OIL PAN (PART NUMBER 21368390) DUE TO O-RING MATERIAL DEGRADATION. IF OIL PAN IS SHOWING EVIDENCE OF LEAKAGE, REPLACE ALL O-RINGS AND SEALING RINGS.

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 CHU2011 to 2016
MACK CXU2011 to 2016
MACK GU2011 to 2016
MACK MRU2011 to 2016

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