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Front Upper Control Arms
Jeep Wrangler JK / JKU 07-18 2pc Crawl Series Front Upper Adjustable Control Arms
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253.95 253.95 USD 309.70

309.70

(Save 18%)

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Order today — ships by Mon, Jun 1
Salt Lake City, UT change
Order by 3:00 PM MT today — we'll start tomorrow
See full timeline
Lifetime warranty Fitment guarantee Ships from Orem, UT 4–8 hr install
Free mounting hardware included — a $20 value
COLOR 11 colors — pick yours
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2pc Crawl Series Front Upper Adjustable Control Arms

Jeep Wrangler JK / JKU 07-18 2pc Crawl Series Front Upper Adjustable Control Arms
SKU: CRL-J-JK-FU2
Pick your vehicle to confirm fit

253.95 253.95 USD 309.70

309.70

(Save 18%)

COLOR 11 colors
Black Blue Charcoal Green LightGreen Orange Purple Red White Yellow Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed.
Compare all tiers →

Build Your Kit

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

Select Color to see price and add to cart.

Order today — ships by Mon, Jun 1
Salt Lake City, UT change
Order by 3:00 PM MT today — we'll start tomorrow
See full timeline
Free mounting hardware included — a $20 value

Alignment recommended Lifetime warranty on all non-wear items Made In USA

Made in USA Orem, Utah
Lifetime Guarantee Unconditional
10 Colors In-house powder coat
Fully Adjustable 0-6" of lift
3 X-Series Options Only Core 4x4

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.

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.

  • Vehicle Fitment: Jeep Wrangler JK 07-18 – Enhances stability, axle alignment, and off-road performance while maintaining smooth on-road handling.

  • CORE Advantage: Johnny Joints provide insane articulation and flexibility, allowing for maximum suspension travel and improved off-road control.

  • Adjustability: Fully adjustable for 0–6” lifts, ensuring precise axle re-centering, caster correction, and optimal suspension geometry for any terrain.

  • Construction: Made from 1.5” OD DOM tubing with a 5/16” wall, powder-coated for extreme strength, durability, and long-term corrosion resistance.

  • 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, our product includes a lifetime warranty on all non-wear items, providing you with confidence and peace of mind in your purchase.

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.

Make Model Submodel Years
Jeep Wrangler 2007 - 2018

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

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

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, lift height, and any add-on options, then add to cart. 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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Reviews of Core 4x4

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5.0
132 reviews
5
97%
4
2%
3
0%
2
1%
1
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MS
Mr. Smith Nov 23, 2025
Google
Have yet to get to try them but I bought some upper, and then later , lower control arms for my 03 rubicon. The pricing is very fair, so fair I was hesitant to even purchase. When the product came in I was happily mistaken. These are some beefy units with an incredible warranty! I’m very excited! I went with the “Camp”series as I mostly daily it. I have trouble with the shipping at times when I ordered but Corby is quick to notice things and help communicate the solution. Looking forward to buying more parts!
Review photo 1
EC
Eric Cox Jul 26, 2025
Google
Prompt, professional, and courteous service! Quality parts and broad assortment of products to suite your 4x4 needs:)
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!
B
Ben Mar 24, 2021
Google
2001 Wrangler TJ- i have purchased all front/rear upper/lower control arms. Front track bar and rear track bar. Quality is excellent and extremely durable you can tell its built to last. Bent a bolt on the front track bar and called and spoke with Spence. He immediately sent me out new hardware plus some! Product is amazing but what really separates companies apart is their service and these guys are second to none. Thank you all!
KK
Kevin Kinard Oct 24, 2025
Google
Great product, excellent customer service. I mistakingly ordered a track bar for the wrong year model and Korby helped me out by sending me the correct part that I needed no questions asked. I highly recommend.
TW
Travis Walker Sep 24, 2025
Google
I have nothing but great things to say about this company and their customer service. If you like American made products backed by warranty and amazing customer support, this is the company for you. I have a Lexus GX470 and love their rear control arms.
Review photo 1 Review photo 2
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.
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.
TG
Travis Grimm Mar 23, 2024
Google
To start off if you're looking to upgrade your control arms definitely hit this company up. Great product, easy install of the product, with three different tiers everything is priced pretty good, I'm a sticker guy and they sent a sticker for each arm each track bar and also three extra ones so the extra are on the Jeep the advertise them for sure. If you're reading this review I highly recommend you to check their website out.
Review photo 1 Review photo 2 Review photo 3 Review photo 4
DS
Dana Smith Jul 26, 2025
Google
Excellent, strong, and durable products—perfect for both on-road and off-road applications. The customer service is outstanding—friendly, knowledgeable, and extremely helpful with understanding installation and ensuring I got exactly what I needed. I would definitely order again. Top-notch company with high-quality products made right here in the U.S.A.
Review photo 1 Review photo 2 Review photo 3

Specifications

Color Black, Blue, Charcoal, Green, LightGreen, Orange, Purple, Red, White, Yellow, Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed.
Lift Size 0" — 6", 6"+
Hardware No Hardware, Complete Kit
Vehicle Jeep Wrangler JK / JKU (07–18)
Brand CORE 4X4
Series Crawl Series
Note to Core4x4: -
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