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Jeep Wrangler JK / JKU 07-18 2pc Crawl Series Front Upper Adjustable Control Arms

SKU: CRL-J-JK-FU2
Fits: 2007 - 2018 Jeep Wrangler JK / JKU Add vehicle

263.25 263.25 USD 309.70

309.70

Starting at $110/mo or 0% APR with . See if you qualify

Build Your Kit

  • Vehicle
    Confirm this matches your vehicle. Use Shop by Vehicle to filter correctly.
  • Brand
  • Color
    Powder coat color for control arms and track bars. Does not affect performance.
  • Series
    Cruise: daily driving and light off-road. Camp: overlanding. Crawl: aggressive rock crawling.
  • Lift Size
    Choose your current front lift height. Measure from center of wheel to fender if unsure.
  • Hardware
    Choose upgraded hardware if your factory hardware is worn, damaged, or missing.
  • Note to Core4x4:

Select Color to see price and add to cart.

4–8 hr install Moderate Alignment recommended Lifetime warranty on all non-wear items Made In USA

Crawl Series Front Upper Control Arms (CRL-J-JK-FU2) for Jeep Wrangler JK (2007-2018)

Enhance your Jeep Wrangler JK's performance with the Crawl Series Front Upper Control Arms (CRL-J-JK-FU2). Designed to deliver unparalleled off-road flexibility and precise on-road handling, these control arms are a must-have upgrade for serious Jeep enthusiasts. Whether you're tackling rugged trails or cruising the highway, this component provides the adjustability, durability, and reliability your vehicle demands.

What's Included in the Kit

  • Crawl Series Front Upper Control Arms (CRL-J-JK-FU2)

Key Features and Benefits

  • Premium Construction: Made from 1.5" OD DOM Tubing with a robust 5/16” wall thickness, these control arms are built to withstand extreme conditions.
  • Original Johnny Joints: Features Johnny Joints from Rock Jock 4x4 at the adjusting end for smooth articulation and superior durability.
  • Adjustability for Lifts: Fully adjustable to accommodate lift heights from 0 to 6 inches, allowing for precise alignment and front axle re-centering. For lifts exceeding 6 inches, additional options are available upon request.
  • Improved Handling: Enhances vehicle stability and off-road performance while maintaining reliable on-road manners.
  • Upgrade Potential: Pairs seamlessly with our Front Lower Control Arms for a complete front-end upgrade, improving overall suspension performance and durability.

Two-Stage Powder Coating

All Crawl Series Control Arms undergo a two-stage powder coating process for superior durability and corrosion resistance. A zinc primer base coat provides a strong foundation, followed by a tough topcoat available in 10 color options to match your style while protecting your components.

Made in the USA

Proudly designed and manufactured in the United States, these control arms are crafted with precision and quality that meet the highest standards of American manufacturing. When you choose the Crawl Series, you’re supporting local craftsmanship and benefiting from reliable engineering.

Optional Hardware Upgrade

The Crawl Series Front Upper Control Arms are designed for straightforward installation using factory hardware. For vehicles with rusted or stubborn bolts, optional Grade 8 hardware kits are available to make the process even smoother and more reliable.

In Conclusion

Upgrade your Jeep Wrangler JK with the Crawl Series Front Upper Control Arms (CRL-J-JK-FU2) for improved off-road flexibility, on-road comfort, and long-lasting durability. With premium materials, precision engineering, and optional hardware upgrades, this is the perfect enhancement for your suspension system. Pair them with our Front Lower Control Arms for the ultimate front-end upgrade and take your Jeep’s performance to the next level.

Make Model Submodel Years
Jeep Wrangler 2007 - 2018

Each rebuild kit includes all necessary components to replace and restore wearable parts.

Vehicle Jeep Wrangler JK / JKU (07–18)
Brand CORE 4X4
Color Black or Blue or Charcoal or Green or LightGreen or Orange or Purple or Red or White or Yellow or Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed.
Series Crawl Series
Lift Size 0" — 6" or 6"+
Hardware No Hardware or Complete Kit

See It Installed

Install videos and build guides on our YouTube channel.

Watch more installs on YouTube
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Reviews from Google

See all on Google
5.0
132 reviews
5
97%
4
2%
3
0%
2
1%
1
0%
AP
Ajay Paynter Mar 4, 2026
Google
Great company, who worked with me on shipping parts to arrive in time for a show. When I explained my concern they went above and beyond to make it happen. Quality of the parts is top notch.
RC
Ryan Colligan Mar 4, 2026
Google
I have nothing but good things to say about Core 4x4. I have the crawler series on my JKU and we take it all over the place. These parts handle everything we throw at them.
MT
Marcus Torres Jan 15, 2026
Google
Best control arms I have installed on any of my builds. After running every major manufacturer, Core 4x4 is on par or better than all the high-end companies at a fraction of the cost. Lifetime warranty is the cherry on top.
BC
Brad C Mar 24, 2021
Google
Outstanding experience! I asked Core to build me a set of custom control arms that were larger/heavier than they normally build. They gladly accepted the challenge and turned out an expertly crafted and super strong product ahead of schedule. Fit and finish are excellent. Spence and Cameron were a pleasure to work with every step of the way. And all of this for a very reasonable price. I highly recommend these guys!
JS
Jon Stempien May 27, 2025
Google
Big thanks to Corby at core 4 x 4 outstanding customer service I like to thank them or 4 x 4 for helping me Well-made product in the United States recommend core 4 x 4 for all jeep Owners that like the four wheel
MP
matthew patterson May 27, 2025
Google
Ive used core products for my last two jeeps and now my ram. They’re parts are the absolute best quality youll find ANYWHERE. Top quality products and A+ custom service keeps the as my go Roger for any suspension needs.
JT
jacob trice Apr 27, 2025
Google
Core 4x4 has outstanding products at a fair price and unmatched customer service. When you call Korby, it's like talking with a friend. Very cool and helpul! I ordered some custom control arms, but from the wrong product line and they were super cool about returning them and upgrading to a better "Crawl" series. Only charged the difference between the two products. They paid all the return shipping and sent the uprgaded arms super quick. It was only a couple days. Awesome!! I couldn't be happier with the transaction👍🏼 Also, these control arms are stout and take a beating. I run heck out my Jeep in the rocks and desert. No problems whatsoever. Thanks Core 4x4, ya'll are welcome at my campfire anytime! Jake T. Pleasant Hill, Or.
SH
Shawn Hooten Apr 27, 2025
Google
Great products, shipped the next day during a big sale event. Core 4x4 gets it right and gets it done! Thank you all.
DW
Derek Whitfield Nov 20, 2025
Google
Solid product, the lifetime warranty sealed the deal for me. Installed on my TJ and the ride quality improved noticeably. Shipping took a bit longer than expected but the parts were worth the wait.
CM
Craig MacIver May 27, 2025
Google
Got the CAMP version of adjustable control arms and track bars for our 03 TJ with a 3” lift and 33x10.5 KO 2’s. Super beefy bars, great fit and adjustability. Friendly advice and support from Korby at CORE 4X4. Good follow up as well. The ride quality is great as well as the handling. I think it all looks pretty good as well.
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