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2018+ Jeep Wrangler JL / JLU

CORE 4X4 · Suspension SKU: CRL-J-JL-FU2

Jeep Wrangler JL / JLU 2pc Kit

Adjustable control arms — front upper · fits 0–6″+ lift

Jeep Wrangler JL / JLU 18+ 2pc Crawl Series Front Upper Adjustable Control Arms
$277.16 $314.95 Save $38

CRUISE from $222 · CAMP $277 · Compare series

$ 277.16 277.16 USD $ 314.95

$ 314.95

Save $ 37.79

Built to order, usually ships in 1–3 days.
Enter ZIP for arrival estimate Delivery date by ZIP
Order by 3:00 PM MT today — we'll start tomorrow
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COLOR Pick yours
100% bolt-on, no welding Made in USA · Orem, Utah You break it, we replace it Joints you rebuild instead of replace
Mounting hardware included
Talk to an Expert: 385-375-2104
Lift Size
What size lift will the parts be used on?
1
https://jerdev.core4x4.com/web/image/product.template/2155/image_1920?unique=edc21f3
CORE 4X4 · Suspension

Jeep Wrangler JL / JLU 2pc Kit

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

Adjustable control arms — front upper · fits 0–6″+ lift

Will this fit your rig?

COLOR Pick yours

Build Your Kit

  • Vehicle
  • Brand
  • Color
  • Series
  • Hardware
  • Lift Size
  • Note to Core4x4:

$ 277.16 277.16 USD $ 314.95

$ 314.95

Save $ 37.79

Select Color to see price and add to cart.

Mounting hardware included
100% bolt-on, no welding Made in USA · Orem, Utah You break it, we replace it Joints you rebuild instead of replace
Talk to an Expert: 385-375-2104
Built to order, usually ships in 1–3 days.
Enter ZIP for arrival estimate Delivery date by ZIP
Order by 3:00 PM MT today — we'll start tomorrow
See full timeline
Core 4x4 Manufactured Social 15 Promo Eligible

Alignment recommended You break it, we replace it. Made In USA

Made in USA Orem, Utah
You break it, we replace it Warranty on non-wear items
10 Colors In-house powder coat
Fully Adjustable 0-6" of lift
3 X-Series Options Only Core 4x4

Product Details

Make Model Submodel Years
Jeep Wrangler 2018–Present

  • Vehicle Fitment: Jeep Wrangler JL 18+ – Corrects suspension geometry and enhances drivability for lifted and off-road setups.

  • CORE Advantage: Essential for lifts over 3”, providing precise pinion angle correction and improved axle alignment when paired with lower control arms.

  • Adjustability: Fully adjustable for 0–6” lifts, allowing fine-tuned suspension tuning to optimize handling, stability, and drivetrain performance.

  • Construction: Built from 1.5” OD DOM tubing with a 5/16” wall, featuring a Johnny Joint at the adjusting end and a U-bracket for secure axle mounting.

  • Two-Stage Powder Coating: Zinc primer base and top coat available in 10 vibrant colors protect against corrosion and allow for personalized styling of your rig.

  • Warranty and Origin: Proudly manufactured in the United States. You break it, we replace it.

Built With

Front Upper control arm built with 1.5” OD 5/16” Wall DOM. Welded u-bracket on the welded end and a Forged Johnny Joints on the adjustable end with 1” x 14” TPI - 2.32” long threads.

Johnny Joints both endsJoints
1.75" OD lowers / 1.50" OD uppersTubing
5/16" DOMWall
Periodic greasingMaintenance

Construction & Materials

Front Upper control arm built with 1.5” OD 5/16” Wall DOM. Welded u-bracket on the welded end and a Forged Johnny Joints on the adjustable end with 1” x 14” TPI - 2.32” long threads.

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"+
Placement on Vehicle Front Upper, Front
Mounting Style Bolt-On

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.

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.

 

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

Use the vehicle selector on our website to shop by your year, make, and model. On product pages, use the kit builder to select your color, series, and any add-on options, then add to cart — you’ll confirm your lift height at checkout. If you need help, call or email our team.

Standard orders typically ship within 1–3 business days of ordering. Custom color orders take approximately 5–10 business days. Because everything is built in-house, we can turn orders quickly even for custom specifications.

You can reach our team through the contact form on our website, or browse to the Contact Us page. Our team is available to answer pre-sale and technical questions before and after your purchase.

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Store reviews on Google

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5.0
★ ★ ★ ★ ★
132 reviews
5 ★
97%
4 ★
2%
3 ★
0%
2 ★
1%
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JC
John Cutler Oct 24, 2025
★ ★ ★ ★ ★ Google
In September 2025, we visited CORE 4x4 in Orem, Utah. CORE 4x4 makes control arms and other similar parts that stiffen the suspension of an off-road 4x4 vehicles, so that the off-road vehicles can travel on more rugged terrain. CORE 4x4 used to share this building with another business, and since this other business has moved elsewhere, CORE 4x4 will continue to expand and grow their business. Good for CORE 4x4 to be a growing company and to expand into the vacant part of the building.
Review photo 1 Review photo 2 Review photo 3 Review photo 4
EC
Eric Cox Jul 26, 2025
★ ★ ★ ★ ★ Google
Prompt, professional, and courteous service! Quality parts and broad assortment of products to suite your 4x4 needs:)
CD
Christopher Dami Jun 26, 2025
★ ★ ★ ★ ★ Google
2022 I ordered a 2023 Jeep Wrangler Rubicon in High Velocity yellow. Without any hesitation I knew I was going with Core 4x4’s 16pc Camp series suspension, powder coated in yellow. Compliments were a given from any and everyone that looked under my jeep. So beefy, I may have left some yellow paint on the rocks from Maine to Florida, but no bends or breaks. Customer service has been perfect each and every time I have needed something. Their warranty is top notch! Their communication is also wonderful. Might upgrade to the Crawl Series control arms where the Johnny joints are on both sides. Great all around company and a great team to troubleshoot your issue and come to a conclusion. Nothing bad to say about this company. Just love this suspension.
Review photo 1 Review photo 2 Review photo 3
MV
Mr. V Mar 24, 2021
★ ★ ★ ★ ★ Google
Good quality parts, much stronger than stock
TH
Todd Hume Jan 22, 2026
★ ★ ★ ★ ★ Google
Their products are great but the service is even better!! Thanks Korby.
RP
Robin Poole Jul 26, 2025
★ ★ ★ ★ ★ Google
I had several questions before my purchase and Korby helped me with the correct parts to order and recommendations. Outstanding customer service and product knowledge! Can't wait to install them!
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.
MT
Mike T Nov 23, 2025
★ ★ ★ ★ ★ Google
Korby and the rest of the team at Core 4x4 know there stuff and answered my question in a timely manner. They even were able to quick ship a re-build kit for me so I could get my truck back on the road- Thanks!
CT
Canon TeSelle Jun 26, 2025
★ ★ ★ ★ ★ Google
Great Experience. I wanted to make changes to my order and Korby was more than willing to work with me to get everything corrected. Hope to deal with these guys again in the future.
DN
Devan Nelson Mar 25, 2019
★ ★ ★ ★ ★ Google
Had a great experience with Core 4x4, I desperately needed a custom track bar and found out just a couple days before Easter Jeep Safari. Spence was a huge help and made it happen with plenty of time to spare. Their parts are top notch!
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Made in Orem, UT · You break it, we replace it.
385-375-2104