Does anyone know what the amp rating of the two 12 gauge fusible links connecting the battery and alternator wire are? 2002 Ford Excursion, 7.3l, AFE stage 2 intake, Banks exhaust,TN Turbo .84,EBPV delete/non EBPV Ped, ITP Reg fuel system, DP Tuner 60tow,80 econo. ... 20 Gauge = 40Amp 22 Gauge = 30Amp Mo (2)F250SD [99 & 00] SC 7.3PSD Auto 4x4. Fuse links come with a current rating just like fuses. A clue as to what current they are designed for is to look at the size wire they protect. Choose the fuse according to the wire size. Wire size current table: 18 gauge wire = 5-8 amps 16 gauge wire = 10-12 amps 14 gauge wire = 15-17 amps 12 gauge wire = 20-25 amps 10 gauge wire = 30-40 amps.