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314.95 314.95 USD 314.95

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Jeep Wrangler JL / JLU 18+ 2pc Crawl Series Front Upper Adjustable Control Arms

SKU: CRL-J-JL-FU2
Fits: 2018 - Present Jeep Wrangler JL / JLU Add vehicle

314.95 314.95 USD 314.95

314.95

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.
  • Hardware
    Choose upgraded hardware if your factory hardware is worn, damaged, or missing.
  • Lift Size
    Choose your current front lift height. Measure from center of wheel to fender if unsure.
  • 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

Optimize Suspension Geometry for Lifts From 0 to 6 Inches

Take your Jeep Wrangler JL’s suspension to the next level with the Crawl Series Front Upper Control Arms (CRL-J-JL-FU2). Designed to pair with Crawl Series Front Lower Control Arms for lifts over 3 inches, these upper control arms ensure precise suspension geometry, improving axle alignment, drivability, and off-road articulation. While not necessary for smaller lifts, these control arms are essential for maintaining proper performance and stability on Jeeps with significant suspension modifications.

What's Included in the Kit

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

Key Features and Benefits

  • Essential for Lifts Over 3 Inches – Designed to work in harmony with Crawl Series Front Lower Control Arms, these upper control arms provide the necessary adjustments to correct overall suspension geometry for larger lifts.
  • Heavy-Duty Construction – Crafted from robust 1.5” OD DOM Tubing with a 5/16” wall thickness, these control arms offer the strength and durability needed to withstand extreme off-road conditions and heavy-duty use.
  • Johnny Joints for Superior Flexibility – Featuring a Johnny Joint at the adjusting end and a U-bracket at the axle end, these arms allow smooth, bind-free articulation for enhanced off-road performance.
  • Fully Adjustable for Suspension Tuning – Tailored for lifts from 0 to 6 inches, these arms enable precise alignment and axle positioning when paired with lower control arms, ensuring optimal handling and stability for Jeeps with larger lifts.

Two-Stage Powder Coating

Each Front Upper Control Arm is finished with a rigorous two-stage powder coating process. The zinc primer base provides exceptional corrosion resistance, while the topcoat—available in 10 customizable colors—adds additional protection and a stylish finish to match your Jeep’s look.

Made in the USA

Proudly manufactured in Orem, UT, the Crawl Series Front Upper Control Arms reflect CORE 4X4’s dedication to American craftsmanship. By managing production in-house, we maintain the highest standards of quality and support local industries while offering competitive pricing.

Optional Hardware Upgrade

Installation is straightforward using factory hardware. For vehicles with rusted or stubborn bolts, optional Grade 8 hardware kits are available separately to make the process seamless and hassle-free.

In Conclusion

The Crawl Series Front Upper Control Arms (CRL-J-JL-FU2) are the perfect upgrade for Jeep JL owners with lifts over 3 inches, delivering precise suspension geometry adjustments when paired with Crawl Series Front Lower Control Arms. With premium materials, superior adjustability, and seamless integration into your Jeep’s suspension system, these control arms ensure enhanced stability, articulation, and drivability. Invest in CORE 4X4’s American-made engineering today for unmatched performance both on and off the trail.

 

Make Model Submodel Years
Jeep Wrangler 2018 - Present

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

Vehicle Jeep Wrangler JL / JLU (18–Present)
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
Hardware No Hardware or Complete Kit
Lift Size 0" — 6" or 6"+

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.
GC
Grant Chaisson Jun 26, 2025
Google
These guys are awesome!! They have helped me build multiple jeeps from zjs to mjs and now with my lj build they all ways impress. There products are the best on the market in my eyes. The best part about it all is it's all made right here in american and shipped anywhere in the world 🌎 . Don't think twice when your looking for control arm or lift kits for your vehicle if these guys sell it BUY IT!!!
MM
Mike Martinez Aug 25, 2025
Google
Phenomenal company - very rare to come by in the automotive industry. Also very impressing. Let me start here. I got a set of yellow sway bar end links for my 19 ram DT (new body style) and let me tell you, I’m hooked. For numerous reasons. One the craftsmanship behind the product is unmatched for sure for without breaking the bank. 2ndly, they stand behind their product. Had a very minor issue and it was resolved in a blink of an eye!!! Insane. Just because of what i listed above i will forever spend my money with core 4x4! And i think you should too! I have no affiliation at all with this company besides being a consumer. I will be ordering my yellow UCAs and the rest of my rear suspension from them here shortly! Korby on the other hand. The representative that helped me went above and beyond FAST. I hung up the phone with him, and with in no lie 3 minutes he was calling back with an answer. GREAT GREAT GREAT customer service, Korby you and core 4x4 are what give us hope in the car community! With much love and great health to you all!!
ST
Sal Torres May 27, 2025
Google
upper control arms look great and went on easy.. only reason I gave 4 stars and not 5 is because of a shipping issue which put my build a week behind. The issue was resolved quickly and painlessly, great customer service. Only time will tell how control arms perform but they look great and like they will go above and beyond control arm demand.
NM
Noah Myers Mar 23, 2024
Google
I contacted these guys on a Saturday through email and needed some control arms by the following weekend, Spence got back with me and told me he would make sure the order got shipped out on Monday, they got busy and wasn’t able to ship the package out so he got back with me that evening and upgraded my shipping for free and shipped out the next day, only because he told me he’d make sure I’d have them by the weekend! This company sticks to their word! The customer service from these guys are unmatched and they will have another lifetime customer here!
GM
George Mar Sep 24, 2025
Google
Great company. Highly satisfied with Core 4x4 customer service. Had some bushings fall apart around 600 miles from home. Called and spoke with Korby Linscomb on Thursday, late in the afternoon. He was able to get my bushings sent across country overnight at a very reasonable rate. Had me up and running by Friday evening with enough time to enjoy the Great Smoky Mountain Jeep Invasion. Thanks Guys!
GV
Gil Valk Sep 24, 2025
Google
Excellent service, Prompt responses when needing technical assistance, Amazing looking parts that fit excellently. I would recommend them to anyone looking for suspension components. Also very well packaged when we received the shipment, which means no damage from shipping company!! We went with the Crawl Series double adjustable kit and it definitely looks killer on our build!!!
PM
Paul Melancon Aug 25, 2025
Google
Ordered a control arm and track bar kit for my WJ from Core 4x4 on Monday 7/28 and received it today, Friday 8/1. Im not a state or two away, im in CT aka the other side of the country. Communication is phenominal, emails were responded too in an hour or less. Parts arrived well packed, not damaged, and are great quality for my needs. There arent many companies left that service customers as well as Core 4x4 and i wont hesitate to check them out again if i need something else. Well done!
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