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Service bulletin FSC-14M1

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 id10055695
Published by NHTSA2014-07-03
Manufacturer's numberFSC-14M1
Manufacturer's date2014-07-03
NHTSA componentEQUIPMENT

NHTSA's summary

DETROIT: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. THE DEF PUMP MAIN FILTER AND DEF DOSING UNIT INLET SCREEN REQUIRES REPLACEMENT DUE TO DEF PUMP MAIN FILTER NOT ABLE TO BE SEATED PROPERLY IN DEF PUMP AND UNSEATED FILTERS LEADS TO BLOCKAGE OF DEF DOSING UNIT INLET SCREEN WITH DEBRIS. *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
DETROIT DIESEL DETROIT

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