After defeating Sheffield United 3-1 at Bramall Lane, Preston North End remain the only other side in the Bantams' division to still be in the F.A Cup.
With Cambridge United losing to Manchester United in their own fourth round replay at Old Trafford, Phil Parkinson's men are actually now classed as the lowest ranked team left in the competition.
The Bantams will play Sunderland in the F.A Cup Fifth Round at the Coral Windows Stadium on Sunday 15 February 2015 - kick off: 2.30pm.
Tickets for this tie are on sale to Season Ticket/FlexiCard holders now - please click HERE for further details.