A BRAKE MASTER CYLINDER FILLER CAP FOR 2.5 INCH GIRLING BRAKE MASTER CYLINDERS SUCH AS GMC224 FITTED TO STANDARD SPITFIRES  . ALSO FITS SINGLE LINE SYSTEMS ON GT6 VITESSE TR4 TR4A ETC .  PART NUMBER 510844  [ WAS 133581 ] 

*INCLUDES THE SEALING RUBBER *