ignition coil core, Brown, for 1940, 1941 Ford Flathead V-8; fits 1937, 1939 and 1939 also.  Ford part number 78 12036.  NOTE: $100 CORE CHARGE IF YOU HAVE NO EXCHANGE FOR A REBUILT COIL.  YOU MAY PURCHASE EITHER BROWN OR BLACK REBUILT COIL, PRODUCT 1288 OR 1289.