Dirt King Fabrication 4130 Upper Control Arms For 4Runner (2025-Current)

Dirt King 4130 Upper Control Arms – Built to Solve Real Problems

If you drive a 2025+ 4Runner (2WD or 4WD) and ready for a suspension upgrade, these 4130 UCAs are for you. We made them to tackle the exact issues we kept running into ourselves—squeaky bushings, joints that need constant attention, and geometry thrown off as soon as you add a lift. Whether you’re daily driving, overlanding, rock crawling, or chasing desert trails, these UCAs handle it all.

These arms feature maintenance-free SilentSpin™ bushings that eliminate grease fittings and unwanted noise, along with heavy-duty Probearing Pro 4 ball joints for high articulation and superior strength. The ball joints are sealed to block out debris and finished with anodized caps. Built to maintain proper alignment from 0–3" of lift, these arms also add roughly an inch of down travel compared to stock, a must-have when paired with our shocks or other aftermarket coilovers like King, Fox, Icon, and more.

Why Go Dirt King?

• SilentSpin™ bushings — no squeaks or maintenance
• Pro 4 ball joints with sealed dust caps
• Rebuildable, USA-made construction
• Precision-welded 4130 chromoly tubing
• Shipped preassembled for faster installs

Upgrade Your 4Runner With Confidence
Built and tested in the USA, these 4130 UCAs are engineered for the long haul—perfect for rigs that work hard on weekdays and explore even harder on weekends. It’s the last set of upper control arms you’ll ever need.

• Amount of Lift: Allows for 0-3” of lift
• Track Width: Stock
• Maximum Backspacing: 5.75”
• Minimum Rim Size: 17”

Note: Do not install with coil spacers combined with extended-length aftermarket shocks.

What's Included

In stock? It ships fast.
In-stock items ship from our warehouse in Utah, usually within 1–2 business days. Sometimes we ship part of your order separately to get it to you sooner, at no extra cost. Each package gets its own tracking number by email.

Some items are ordered for you.
Certain items are special-ordered from the manufacturer after you buy. The estimated lead time is listed on this page, and shipping time is added after that. We will send you updates as we receive them.

Questions? You can always reach out. Call or text us at (385) 526-3903.

Returns
You have 30 days from delivery to send something back. It has to be uninstalled, unused, and in its original packaging. Start your return through our returns portal and we’ll walk you through it.

Warranty
4Runner Lifestyle has your back with a strong warranty, and we’ll always work to get you covered. Call us and we’ll handle the claim with the manufacturer for you.

Questions? Call or text us at (385) 526-3903.

Read our full Return Policy.