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Service bulletin 9878

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 id601363
Published by NHTSA1998-07-27
Manufacturer's number9878
Manufacturer's date1998-04-13
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE

NHTSA's summary

SIGNIFICANT CHANGES HAVE BEEN MADE TO THE 7.3L DIT ENGINE EFFECTIVE WITH THE 1998 AND 1999 MODEL YEARS. *YC

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
FORD ECONOLINE1998
FORD F SUPER DUTY1999

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