The DFC brake master cylinder for 1984–1999 Ford L9000 Conventional (with front disc brakes) is specified for that span and is intended to restore hydraulic braking function for L9000 trucks equipped with front disc brakes. It provides the replacement master cylinder option when servicing or replacing the factory unit in the listed years.
DFC 84-99 Ford L9000 Conventional (w/Front Disc Brakes) MC Brake Master Cylinder