Ask the Editors: What Did I Fry?
Well here’s the good news- if we’re reading you correctly, it sounds like the OEM Honda classification for this entire assembly would be considered the battery cable. Further proof can be found here on the schematic for your year, make and model.
Assuming you are referring to #3 on the schematic, aside from the cable assembly itself ($36.54), all you could have destroyed by hooking up the battery backward at the terminals would be the fuses within the housing. In fact, there is a good possibility that’s exactly what happened. Before you purchase any complete assemblies, it may be a good idea to check these fuses, which, as you can see, are comprised of both 15 and 30 amp units. It appears they sell for around $0.80 apiece.