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4pc Camp Series Front Adjustable Control Arm Kit

SKU: CMP-J-JK-FS4 ★★★★★ (132 reviews)
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$ 562.23 562.23 USD $ 661.45

$ 661.45

(Save 15%)

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Order today — ships within 1–3 business days
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Order by 3:00 PM MT today — we'll start tomorrow
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Lifetime warranty Fitment guarantee Ships from Orem, UT 4–8 hr install
COLOR 11 colors — pick yours
https://core4x4.com/web/image/product.template/2110/image_1920?unique=edc8f61

4pc Camp Series Front Adjustable Control Arm Kit

SKU: CMP-J-JK-FS4
Pick your vehicle to confirm fit
Google 5.0 ★★★★★ (132 reviews)

$ 562.23 562.23 USD $ 661.45

$ 661.45

(Save 15%)

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

  • 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:
  • Vehicle
    Confirm this matches your vehicle. Use Shop by Vehicle to filter correctly.

Select Color to see price and add to cart.

Order today — ships within 1–3 business days
Enter ZIP for arrival estimate change
Order by 3:00 PM MT today — we'll start tomorrow
See full timeline

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

Experience Unrivaled Comfort and Durability

Enhance your Jeep Wrangler JK's handling, stability, and off-road capability with the Camp Series Front Control Arms Set. Designed for 2007-2018 Jeep Wrangler JK models, this set includes both Front Upper Control Arms (CMP-J-JK-FU2) and Front Lower Control Arms (CMP-J-JK-FL2), providing a comprehensive suspension upgrade. Whether you’re conquering rough terrain or cruising the highway, these control arms deliver superior strength, flexibility, and precise alignment adjustments to optimize your driving experience.

Key Features Benefits

  • Corrects caster angle to prevent wandering and improve steering return-to-center.
  • Recenters front axle for better alignment and improved handling.
  • Heavy-duty construction with 1.75” OD DOM Tubing for superior durability.
  • Accommodates lifts from 0 to 6 inches, ensuring proper geometry and alignment.
  • Johnny Joints for increased articulation and polyurethane bushings for vibration dampening.
  • Two-stage powder coating for corrosion resistance, available in 10 colors.
  • Proudly made in the USA with high-quality materials and precision engineering.
  • Recommended pairing: Camp Series Front Track Bar (CMP-J-JK-FTB1) for a fully optimized front suspension setup.

Caster Correction Axle Centering for Better Drivability

When lifting a Jeep Wrangler JK, the front axle naturally shifts off-center, and the caster angle decreases, leading to poor steering response, increased wandering, and a lack of stability. Correcting these issues is crucial for maintaining proper drivability.

Caster Angle Restoration

The lower control arms play a key role in regaining caster, helping the front tires return to center after a turn and preventing the Jeep from following road ruts or wandering. Proper caster correction improves straight-line stability and reduces steering effort, making lifted vehicles safer and more predictable to drive.

Axle Centering Alignment

The upper and lower control arms work together to recenter the front axle, ensuring proper wheel positioning for correct steering geometry and minimized tire wear. When paired with our Camp Series Front Track Bar, you achieve full front suspension correction, eliminating handling inconsistencies caused by lifting your Jeep.

Built for Strength and Performance

Crafted from heavy-duty DOM Tubing with a .313" wall thickness, these control arms are engineered for extreme durability. The design features: Johnny Joint at the adjusting end for maximum articulation and flexibility off-road. Tapered polyurethane bushing at the axle end for vibration dampening, reducing road noise while maintaining a smooth ride.

This combination delivers the best of both worlds—enhanced articulation for off-road performance and exceptional road comfort.

Adjustability for Perfect Alignment

Our adjustable control arms accommodate lifts from 0 to 6 inches, allowing precise adjustments to caster, pinion angles, and axle positioning. With full adjustability, you restore the proper geometry lost during a lift installation, improving your Jeep’s handling, reducing stress on suspension components, and maximizing tire longevity.

For lifts beyond 6 inches, contact us for additional options and support.

Resilient Two-Stage Powder Coating

To ensure long-term durability, our control arms undergo a two-stage powder coating process, providing superior corrosion resistance and an eye-catching finish: Zinc Primer Base Coat – Protects against rust and environmental wear. Top Coat in 10 Custom Colors – Allows you to customize the look of your suspension while adding an extra layer of durability.

Proudly Made in the USA

Every Camp Series product is manufactured in our Orem, UT facility, ensuring the highest standards of quality and craftsmanship. By sourcing raw materials locally and maintaining in-house production, we deliver superior products while supporting American manufacturing.

Optional Hardware Upgrade

These control arms are designed to install easily using factory hardware. However, for rusted or stubborn bolts, we offer optional new Grade 8 hardware kits (available separately) to ensure a seamless installation.

Take control of your suspension and upgrade your Jeep Wrangler JK today!


  • Vehicle Fitment: Jeep Wrangler JK 07-18 – Precision-engineered for all trims to enhance suspension control, handling, and off-road capability.

  • CORE Advantage: Restores proper caster angle to enhance steering response, reduce wander, and improve high-speed stability for a smoother, more controlled ride.

  • Adjustability: Fully adjustable to accommodate 0–6” lifts, allowing precise axle alignment, caster correction, and optimized suspension geometry.

  • Construction: Made from heavy-duty 5/16” wall DOM tubing with polyurethane bushings and Johnny Joints for durability, comfort, and off-road flexibility.

  • 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 Lower Control Arm Built With 1.75” OD 5/16” Wall DOM. A Polyurethane Bushing on the fixed end and a Forged Johnny Joints on the adjustable end with 1.25” x 12 TPI - 2.625” long threads.

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.

Master Rebuild kit for CMP-J-JK-FS4 $ 114.00
Master Rebuild kit for CMP-J-JK-FL2 $ 72.00
Master Rebuild kit for CMP-J-JK-FU2 $ 42.00

Construction & Materials

Jeep Wrangler JK / JKU 07-18 2pc Camp Series Front Lower Adjustable Control Arms

Front Lower control arm built with 1.75” OD 5/16” Wall DOM. A Polyurethane Bushing on the fixed end and a Forged Johnny Joints on the adjustable end with 1.25” x 12 TPI - 2.625” long threads.

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

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.

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 Camp Series
Lift Size 0" — 6" or 6"+
Hardware No Hardware or Complete Kit
Vehicle Jeep Wrangler JK / JKU (07–18)
Placement on Vehicle Front Upper, Front Lower, Front
Mounting Style Bolt-On
Google

Reviews of Core 4x4

See all on Google
5.0
★ ★ ★ ★ ★
132 reviews
5 ★
97%
4 ★
2%
3 ★
0%
2 ★
1%
1 ★
0%
GK
GLENN KOSZKA Apr 27, 2025
★ ★ ★ ★ ★ Google
The folks at Core 4X4 are always wonderful to deal with. They explain your options and never pressure or rush things. The quality of the Core Control Arms is top shelf, especially if your goal is to stop wheel hop. I recommend Core 4x4 without reservation ! ! !
J
Justin Mar 24, 2021
★ ★ ★ ★ ★ Google
Small business, family owned, made in the USA, lifetime warranty. Purchased Tier 3 control arms and rear track bar for a 2006 Jeep LJ. Simple website and easy to contact over phone and email. I had some technical questions and they were happy to answer them. They allow local pickup and were built to order same week. The order was wrapped and ready when I walked in and even gave a tour of the shop. They abrasive blast all raw materials to achieve a better surface profile for powdercoat to adhere and create a smooth, durable finish. I also noticed several CNC machines and a robotic welder they use for all their parts. A small outfit with a robotic welder? Their concern for quality is obvious and it shows in the parts they make. Very impressed. Happy to do business with these guys.
Review photo 1
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
Z
Zion Sep 24, 2025
★ ★ ★ ★ ★ Google
Every product I have received from them has been nothing short of fantastic. Korby in Customer service went above and beyond to help me fix my own mistake. I cannot reccomend them enough.
RT
Ruby Timm Apr 27, 2025
★ ★ ★ ★ ★ Google
Bought a new 2019 Ram 1500. Had bad rear wheel hop since new, got all four core 4x4 control arms and it fixed the issue. Thanks
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.
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!
RM
R2d2 Movi78 Feb 21, 2026
★ ★ ★ ★ ★ Google
I’m extremely impressed with Core 4x4. The quality of their parts is outstanding — everything feels solid, well‑built, and engineered with real attention to detail. Shipping was fast and everything arrived perfectly packaged. Their customer service is just as good as their products: responsive, helpful, and genuinely committed to making sure you get exactly what you need. Overall, a top‑tier experience. I’ll definitely be buying from them again. Specially thank you Mr. Linscomb from Core 4x4. Arturo M.
WT
William Turton Nov 23, 2025
★ ★ ★ ★ ★ Google
Finally a company with a great product and customer service to match. I changed my order last minute from short arms to long arms. The lift is extremely well built. Korbey was awesome! Highly recommend Core 4x4
D
Danny Oct 24, 2025
★ ★ ★ ★ ★ Google
Outstanding customer service to match the high quality parts. This is the go-to company.

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
Brand CORE 4X4
Series Camp Series
Note to Core4x4: -
Vehicle Jeep Wrangler JK / JKU (07–18)
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ARMOR & BODY Choose vehicle for fit
Frame Brackets Coming Soon Mounting + relocation brackets › Panhard Mount Coming Soon Track bar relocation mount › Axle Truss Weld-on axle reinforcement 2 › Rear Bumpers Heavy-duty rear bumpers 1 › Frame Stiffener Coming Soon Frame reinforcement plates for big lifts › Skid Plates Coming Soon Engine · Oil pan · Muffler · Gas tank › Exterior Accessories Bumper guards · Cargo racks · Light mounts 8 › Armor Axle trusses · Diff covers · Crossmembers 22 ›
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Drivetrain Coming Soon Axles · Gearing · Driveshafts ›