There was a thread a while back where someone was asking about the fuse box on Defenders.....Well the fuse housing for my heater has been "temperamental" for ages - OK, its knackered, burnt, melted and generally nasty. Last bodge was to jam a fuse in at a wierd angle.... Finally decided to chase up the issue, given a forecast of Arctic blasts.... . Rumour had it that Craddocks have spares despite it not having an LR part no. (To LR the fuse box is an integral part of the bulkhead loom at £ Squillions). Answer is that they dont. Put me on to Holdens. Also no go.
Latest bodge is to remove the two wires from the back of the unit, standard lucar connectors, clean up the connectors and insert an in-line fuse holder which is now rattling about in the cats cradle of wiring just behind and above the fuse box proper.
Next job then, look for a suitable blade fuse holder capable of taking 16 fuses with rear lucar connector entry that can be fitted in the space where the current item goes - or rob one off a scrapper.