Passenger Side ARB Twin Compressor Mounting Bracket for 5th Gen 4Runner

Mountain Off-Road Enterprises (M.O.R.E.) ARB Twin/Dual Air Compressor Passenger Side Bracket – Install and Review

This is a full step-by-step overview of the Mountain Off-Road Enterprises (M.O.R.E.) ARB Dual Air Compressor (CKMTA12) bracket for the 5th Gen 4Runner.

When it comes to airing up your tires, the ARB lineup of compressors is very well known. The 5th Gen 4Runner world is notoriously known for the Sponsored by Wifey air system but it just doesn’t fit my needs, personally. I debated on going with a short-lead system like the Sponsored by Wifey air system but more of a modular air system, like the MORRFlate or even the Indeflate fits my style a little better.

With these two air systems, you still need a compressor and somewhere to mount it if you’re going with an onboard air system.

My engine compartment on the driver side is currently taken up by the Switch-Pros sitting on a power tray so the driver side was out for me.

I knew that adding a dual battery system on the passenger side was an unlikely option for a few reasons so that left the passenger side wide open for an ARB Dual/Twin Air Compressor (CKMTA12) bracket.

Find it online: 

• Mountain Off-Road ARB Bracket: Check Price
• ARB Twin Compressor: Check Price

M.O.R.E ARB Twin Compressor bracket:

I had seen a few options out there from 4×4 Labs, and SLEE but neither option offered room for a tank underneath. I wanted the option to eventually add a tank or add something in place of a tank, possibly a small group battery for dedicated power on a fridge…who knows.

I like the idea of having the compressor not take up the entire space, and the Mountain Off-Road Enterprises (M.O.R.E.) bracket leaves a large opening for something down the road, although it is specifically made to fit a 1-gallon ARB tank.

In any case, I like that the M.O.R.E bracket offered room underneath the compressor.

Passenger Side ARB Twin Compressor Mount Install

This is a straightforward, plug-and-play bracket, Made in the USA and fits 4th Gen 4Runners through 5th Gen 4Runners (2009–present).

The bracket is made of 1/8″ steel and can be ordered powder-coated black or red. Do note that ordering a red bracket may take up to 5 business days to ship.

Okay, let’s jump into it.

This install is not going to cover the ARB Compressor Install and Wiring; we have that as well as the Switch-Pros ARB Quick Connect Harness in separate posts.

Step 1: Unclip and Unmount Factory Wiring Harness

Unclip both wiring harnesses and set to the side. You can leave the metal bracket in place holding the black plastic connection clip upright. Remove the second harness and then toss the push clip connecting the harness to the firewall.

NOTE: I always save my push clips. You never know when a good OE push clip will come in handy.

Step 2: Install Small Compressor Foot Mount

The kit comes with this small foot bracket with a welded in place screw. Thread the first nut on the bracket into place on the OE bracket to secure it into place.

Step 3: Insert Compressor Bracket Mount

Position the bracket on the three bolts sticking up. Two of these are factory bolts and the other is from the small foot bracket.

Step 4: Tighten Down Main Compressor Bracket with Provided Hardware

Tighten down the bracket to the bottom along with the side firewall.

Step 5: Reinstall Factory Wiring Harness(s)

Reconnect your factory harnesses. If you’re running a 1-gallon ARB tank, you will need to find another place to route your factory harnesses. Since we are not using a tank, the harness can fall in line with almost exactly where they were to start with.

Step 6: Slide Top Plate into Slotted Edge on main bracket

The bracket comes with a slotted edge on the lower bracket and a top plate that slides into that slotted edge. Pictured above, you can see the notch on the top plate that slides and locks into the bottom plate.

Step 6 (view): View of Bracket with Top Plate and No Compressor

We pictured this without the ARB twin compressor for reference. You should test fit the bracket first and then attach the compressor to the top plate before you finish with your installation.

Step 7: Attach Top Plate to ARB Twin Compressor

Attach the top plate of the M.O.R.E. bracket to the ARB twin compressor with the provided hardware.

Step 8: Position Top Plate and ARB Compressor in Place

Slide the notched corner of the top plate into the slotted edge of the M.O.R.E. bracket.

Step 9: Pull ARB Twin and Top Plate securely in place on lower Bracket

It may take some effort to pull the compressor while attached to the top plate, back into place. The notched corner will lock into place along the slotted edge of the bracket.

Step 10: Optional (Lift up hood plastics to make room for tank)

You may need to lift the weather stripping in order to get access to the backside of the compressor. This will help you get a grip on the compressor and pull it into place.

Step 11: Secure Bracket/Compressor in place with Provided Hardware

Once the compressor and bracket have locked into place on the top plate of the bracket, you can secure the last two bolts in place and call it a day.

Final Thoughts?

If you are looking for a passenger side compressor mounting bracket, this is s a great option.

Like I mentioned above, there a few options out there but none quite like the M.O.R.E. bracket.

Their design accommodates a 1-gallon ARB tank, so whether or not you want to run that is up to you.

With this bracket, there is more than enough room to run another accessory under/inside the bracket. I have some ideas and will be updating this post or add another soon!