Land Rover Defender Aluminium Fuse box Screws Silver Land Rover Defender Aluminium Fuse box Screws Silver. Land Rover Defender Aluminium Fuse box Screws Silver freshen up the look of your dash with these quick and effective mods. Available in black or silver. sold in pairs. for all other aluminium parts check out wwwnderupgrades or contact us for further help. Aluminium billet Fuse Box Upgrade - Land Rover Rebuild The original fuses fitted to the Land Rover were of the glass tube type. These measure approximately 30mm long by 6mm diameter. The previous owner had disregarded the recommended fuse ratings as printed on the cover of the fuse box; I found that several fuses were of the 35-Amp variety, and even some ordinary 13A household fuses (as normally found in an electric plug) had been used.