Prinsu Pro Install 6th Gen (2025+) 4Runner

[Trail4R]

Finally got the Prinsu rack installed on the TRD Off-Road Premium and wanted to share a quick look at the install process. This is the second Prinsu Pro I’ve installed—the first was on my 5th Gen 4Runner. Prinsu made a ton of solid improvements with the Pro version, and I’m stoked to be running this on the 6th Gen. Some of the most notable upgrades over the original include all stainless hardware, redesigned side plates with a 90-degree bend and slotted cutouts, stronger crossbars, and improved mounting feet. The Pro rack is more durable overall and offers more accessory mounting options. I loved it on my 5th Gen and couldn’t wait to get one on this rig.

For a full breakdown of the differences, check out this post: Prinsu Pro Rack vs. Original Rack
Order here: https://prinsu.com/product/toyota-4runner-prinsu-pro-roof-rack-2025/

1. Lay Out All the Parts​

Start by laying out your crossbars, side rails, mounting feet, and fairing components.

2. Mount Crossbars, Mounting Feet & Fairing​

Assemble the crossbars to the side rails, then attach the fairing and mounting feet.

3. Remove Factory Roof Rails​

Remove the factory rails by prying off the black end caps with a plastic trim tool. It may sound like something's breaking, but it’s just the clips releasing. Underneath, remove the 12mm bolts by hand—don’t use a drill or impact driver to avoid damaging the threads.

4. Install Rubber Washers & Spacers​

Set your rubber washers and spacers in place. Fill each spacer and the internal threads with silicone—either now or after the rack is positioned. I prefer sealing them once the rack is installed to avoid excess mess.

5. Carefully Place the Rack​

With a friend’s help, carefully lift and lower the rack onto the spacers.

6. Trim Weather Stripping​

The 6th Gen 4Runner version has two additional front mounting feet. You’ll need to trim the roof weather stripping so the feet can sit directly on the roof with the included double-sided 3M tape. I marked about 1/2" on both sides with a black Sharpie, removed the stripping, made the cuts, and reinstalled it.

7. Apply Silicone & Install Hardware​

Once the rack is aligned on both sides, apply silicone generously through the spacers into the threaded holes. Prinsu includes a full-size tube, which is a nice touch. After sealing, install the new 13mm hardware by hand, tightening them about 90% of the way.

8. Final Fitment Check​

Double-check fitment and alignment, then finish hand-tightening all bolts.

That’s it! Super straightforward install.

 

[Trail4R]

Some final photos of the rack installed: