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Service bulletin BC4379950906

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 id45766
Published by NHTSA1996-04-25
Manufacturer's numberBC4379950906
Manufacturer's date1995-09-01
NHTSA componentSERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS

NHTSA's summary

THE AIR BRAKE SYSTEM PRESSURE GAUGE P/N E7HZ-2557-A MAY LEAK AIR. THIS WAS CAUSED BY HIGH TORQUE BEING APPLIED TO THE AIR LINE NUTS DURING ASSEMBLY. IN FEBRUARY, 1995 THE INSTALLATION PROCESS WAS CHANGED TO RESOLVE THIS SITUATION. *TW

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

Brakes, Brake hoses and lines

Vehicles listed
FORD L SERIES

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