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vready

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I just installed the ARB Twin Air Compressor in the engine bay of my TRD Off- Road Premium iForce MAX Hybrid, including the ARB Manifold Kit and ARB Universal Hose Coupler.

In order to make everything fit, I used this compressor mounting bracket from Bullet Proof Fabricating, which allows you to relocate the ECU modules and free up space.

2025 Toyota 4runner Installed ARB Twin Motor Air Compressor using BPF Mounting Bracket _W0A4815


The installation process was fairly straightforward and I just followed the step-by-step instructions on the BPF website, and the compressor install guides from ARB. It took about 2.5 hours from start to finish, including gathering up the required tools, removing the ECU bracket, mounting all the hardware, installing the new bracket, and reconnecting and testing everything.

Here are a few more photos to help you visualize the before and after.

2025 Toyota 4runner Installed ARB Twin Motor Air Compressor using BPF Mounting Bracket _W0A4779


This is how it looked when I started (stock 4Runner configuration)

2025 Toyota 4runner Installed ARB Twin Motor Air Compressor using BPF Mounting Bracket _W0A4781


I disconnected the battery and removed the ECU modules, which opened up a much bigger space.

2025 Toyota 4runner Installed ARB Twin Motor Air Compressor using BPF Mounting Bracket _W0A4783


2025 Toyota 4runner Installed ARB Twin Motor Air Compressor using BPF Mounting Bracket _W0A4792


Following the instructions from Bullet Proof Fabricating (a Canadian company BTW) I mounted the compressor and ECU onto their bracket.

Once I dropped it in and mounted it with the original factory bolts, it looked like this:

2025 Toyota 4runner Installed ARB Twin Motor Air Compressor using BPF Mounting Bracket _W0A4793


2025 Toyota 4runner Installed ARB Twin Motor Air Compressor using BPF Mounting Bracket _W0A4803


2025 Toyota 4runner Installed ARB Twin Motor Air Compressor using BPF Mounting Bracket _W0A4807-Edit


Next, I configured and mounted the ARB Manifold Kit on the ear off the left side of the BPF bracket:

2025 Toyota 4runner Installed ARB Twin Motor Air Compressor using BPF Mounting Bracket _W0A4811


Here are a few more looks at the install:

2025 Toyota 4runner Installed ARB Twin Motor Air Compressor using BPF Mounting Bracket _W0A4812


2025 Toyota 4runner Installed ARB Twin Motor Air Compressor using BPF Mounting Bracket _W0A4790


2025 Toyota 4runner Installed ARB Twin Motor Air Compressor using BPF Mounting Bracket _W0A4813


Huge shout out to Phil Gragg at Offroad Toy Outfitters in Vancouver, WA for helping me source the parts, and giving me the confidence to undertake this one on my own. He's a great guy and a great resource for the 4Runner community!
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J4Runner1

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Nice. Thanks for the write up.
 

TurnerXC

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nice work. I pulled my ARB out of my 2017 JKU when I traded it in on my TRD Pro. just been waiting for someone to come up with a mounting bracket for it..
 

elecfuyu

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Curious how you hook up the power since the battery is in the back.
Did you already ran a dedicated power source from the battery to the engine bay?
 
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vready

vready

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Vince
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