Sadly, what Pep Boys is selling as the Mini JCASE, is littlefuse LJCA020.XP, which is a LP JCASE. The LP JCASE data sheet on littlefuse, shows them as appearing being dimensionally larger, than the measured fuse above. 12x10x16 vs. 10x6x14.
LP JCASE data sheet.
CarQiest will not show parts at my location. Can someone with a location which shows inventory, please tell me the part number, for the 20A CarQuest is selling?