Mil-Spec Designs

Mil-Spec Designs Automotive accessories

2.8l 70 series landcruiser .pros.official kit. Clean install, neat wiring, the perfect way to install your 9100 with all...
31/03/2026

2.8l 70 series landcruiser .pros.official kit. Clean install, neat wiring, the perfect way to install your 9100 with all the added extras 👌🏻👌🏻👌🏻

Bit late to the MIDI fuse Busbar game, but worth the wait. If you’re looking for that premium option to buss your MIDI f...
23/03/2026

Bit late to the MIDI fuse Busbar game, but worth the wait. If you’re looking for that premium option to buss your MIDI fuses together, this will be it.

Multiple sizes from 2-8 way, fully enclosed buss cover, intergrated Radlock connection system allowing quick connect/disconnect, as well as full 360 degree swivel. Flexible radlock pin gasket, keeping as much of the copper covered as possible.

Any questions let us know!

New product!, Switch Pros 9100 extended wiring harness. This custom wiring harness eliminates some of the joining requir...
19/03/2026

New product!, Switch Pros 9100 extended wiring harness. This custom wiring harness eliminates some of the joining required when installing a switch pros 9100 switch system.

Spec 44 construction, standard switch pros colour coded tails, as well as 4m long signal switch wires (pink, blue, white).

More details on the website.

Stocking a handy new product from the MXM fuse holder. These fuse holders can combine both MEGA, and MIDI fuses into th...
22/02/2026

Stocking a handy new product from the MXM fuse holder.

These fuse holders can combine both MEGA, and MIDI fuses into the same fuse block array. This means you can have 1 main feed for both types of fuses, reducing wiring and improving overall neatness of your installs!.

Few random pics from the week that was…… always a mixed bag🫡🫡🫡
23/11/2025

Few random pics from the week that was…… always a mixed bag🫡🫡🫡

Don’t forget to laser your Bussmann midi fuse holders…..
02/11/2025

Don’t forget to laser your Bussmann midi fuse holders…..

Now stocking SGX battery cable in multiple sizes. This battery cable has numerous advantages over the standard battery c...
07/09/2025

Now stocking SGX battery cable in multiple sizes. This battery cable has numerous advantages over the standard battery cable we use from the standard few suppliers here in Australia. (Narva, oex, Tycab)

- ultra flexible - our SGX battery cable is more flexible than standard battery cable, that’s due to the copper stranding, as well as the XLPE insulation, which is also harder wearing than the standard PVC.

- mm2 size - nothing worse than using AWG sized cable, in a mm2 cable lug (I double crimp certain sizes).
All our cable matches standard sized lugs here in Australia perfectly.

- temperature rating - SGX battery cable is a step above for high temp conditions. From -40 to 125 degrees rated ( standard battery cable is around 70 degree max)

We have a few sizes in stock, with more in the way!

Update to the 70 series BSK kit (pre facelift), now comes standard with a vehicle specific relay bracket. This new desig...
24/08/2025

Update to the 70 series BSK kit (pre facelift), now comes standard with a vehicle specific relay bracket. This new design allows for laser marking your relays, as well as a more compact footprint compared to off the shelf holders.

Also releasing an updated V2 version of our next gen relay bases, here you can see a new “quad” formation. More will be released in the coming days🥵🥵

Bringing as many processes in house as we can…..
19/07/2025

Bringing as many processes in house as we can…..

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Sydney, NSW

Telephone

+61419258126

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