Yes and No
on the napaonline site:
IC14 is an Echlin brand about $40
IC14SB is "Mileage Plus Electrical", probably an import. about $20
Should be electrically the same.
I've used several IC14SB and had good luck with them.
By the way coils DO NOT have internal separate resistors. Difference in 6 and 12 volt coils is in the the way the primary and secondary are wound.