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4pc Cruise Series Front Adjustable Control Arm Kit

SKU: CRS-J-JK-FS4 ★★★★★ (132 reviews)
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$ 361.16 361.16 USD $ 451.45

$ 451.45

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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
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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/2108/image_1920?unique=edc8f61

4pc Cruise Series Front Adjustable Control Arm Kit

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

$ 361.16 361.16 USD $ 451.45

$ 451.45

(Save 20%)

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

  • 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.
  • Hardware
    Choose upgraded hardware if your factory hardware is worn, damaged, or missing.
  • Series
    Cruise: daily driving and light off-road. Camp: overlanding. Crawl: aggressive rock crawling.
  • Note to Core4x4:

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

Maximize Caster Control and Front-End Stability

Upgrade your Jeep Wrangler JK (2007-2018) with the Cruise Series Front Control Arm Set, designed to restore proper caster angles, improve axle centering, and enhance overall drivability. Whether you're addressing factory alignment deficiencies or correcting geometry changes from a lift, this set provides the optimal balance of strength, adjustability, and control for both on-road stability and off-road articulation.

Key Features and Benefits

  • Regain Caster Improve Steering Control – Factory suspension geometry and small lifts reduce caster angle, leading to wandering steering and instability. This set corrects caster and re-centers the front axle, ensuring a more stable, controlled ride.
  • Heavy-Duty Steel Construction – Built to outlast and outperform factory control arms, these arms offer superior impact resistance and long-term durability.
  • Tapered Polyurethane Bushings for Responsiveness – Designed for improved articulation, vibration dampening, and better road feel, compared to standard rubber bushings.
  • Full Adjustability for Lifted Vehicles – Ideal for suspension lifts from 0 to 6 inches, restoring proper axle position and caster alignment to maintain smooth handling and reduced driveline vibrations. For lifts beyond 6 inches, contact us for additional solutions.
  • Complete Suspension Solution – For full control over axle positioning, pinion angles, and suspension geometry, pair this set with our Cruise Series Rear Control Arm Set (CRS-J-JK-RS4). Together, they provide a comprehensive upgrade for improved handling, stability, and long-term durability.

Two-Stage Powder Coating for Maximum Protection

Every Cruise Series Front Control Arm undergoes a two-stage powder coating process for maximum durability and corrosion resistance: Zinc primer base coat prevents rust and enhances longevity. Durable top coat available in 10 custom colors for added style and resilience.

Effortless Installation

The Cruise Series Front Control Arm Set is designed for quick and easy installation using factory hardware. For vehicles with rusted or seized bolts, we offer optional Grade 8 hardware kits separately to simplify the installation process.

Proudly Made in the USA

Manufactured in Orem, UT, the Cruise Series Front Control Arm Set reflects the highest standards of American craftsmanship. By choosing CORE 4X4, you're investing in high-quality, American-made products built for the toughest driving conditions.

For a complete suspension solution, pair this with the Cruise Series Rear Control Arm Set (CRS-J-JK-RS4) to fully adjust and optimize axle positioning, pinion angles, and handling characteristics.

Upgrade today and experience better alignment, superior handling, and long-lasting durability with CORE 4X4’s American-made front control arms!


  • Vehicle Fitment: Jeep Wrangler JK 07-18 – Designed to restore proper caster, improve axle centering, and optimize front-end geometry for lifted and stock-height Jeeps.

  • CORE Advantage: Regains lost caster angles and front axle alignment to eliminate wandering, enhance steering stability, and improve overall drivability.

  • Adjustability: Optimized for lifts from 0 to 6 inches, ensuring precise alignment correction, caster restoration, and reduced driveline vibrations.

  • Construction: Heavy-duty steel tubing with tapered polyurethane bushings, offering superior strength, articulation, and vibration 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 Lower Control Arms Built With 1.875” OD 3/16” Wall DOM. Polyurethane Bushings on the fixed and adjustable ends with 1.25” x 12 TPI - 3.25” long threads.

Front Upper Control Arms Built With 1.625” OD 3/16” Wall DOM. Welded U-bracket on the fixed end and a Polyurethane Bushing on the adjustable end with 1” x 14 TPI - 3.25” 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 CRS-J-JK-FS4 $ 90.00
Master Rebuild kit for CRS-J-JK-FL2 $ 60.00
Master Rebuild kit for CRS-J-JK-FU2 $ 30.00

Construction & Materials

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

Front Lower control arms built with 1.875” OD 3/16” Wall DOM. Polyurethane Bushings on the fixed and adjustable ends with 1.25” x 12 TPI - 3.25” long threads.

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

Front Upper control arms built with 1.625” OD 3/16” Wall DOM. Welded U-bracket on the fixed end and a Polyurethane Bushing on the adjustable end with 1” x 14 TPI - 3.25” 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.
Hardware No Hardware or Complete Kit
Series Cruise Series
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%
DD
DANIEL DUSSAULT Nov 23, 2025
★ ★ ★ ★ ★ Google
Very beefy items for a very reasonable price.  Personally have CORE rear track bar and all upper control arms for my 04 Jeep TJ.  Had a slight issue with control arm length and they went above and beyond to swap jam nuts to get me where I needed to be.  Really have to appreciate a company like this.
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.
N
niceguyr1 Mar 24, 2023
★ ★ ★ ★ ★ Google
I purchased upper and lower adjustable arms for my WJ and lowers were missing the spacers. I didn't know until 3 months later when I was installing them. With absolutely zero hassles they quickly sent me the missing spacers. Fantastic product and service! Huge thank you guys for the awesome service and parts!!! Customer service is quickly becoming a lost commodity and you guys gave me hope that it's still alive and well, you just have to buy from the right people... Thanks again for going above and beyond! 👍👍
CM
Cameron Masters Mar 24, 2023
★ ★ ★ ★ ★ Google
Absolutely incredible family owned business. I asked to pick up my order since I’m local and they came in on a weekend to accommodate. Had to make some adjustments to parts and took the time to make sure it was perfect. Parts are incredible quality. If you have a Jeep, do not hesitate to support this local business.
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.
Review photo 1 Review photo 2 Review photo 3 Review photo 4
DR
David Rogers Aug 25, 2025
★ ★ ★ ★ ★ Google
Ive had the front adjustable control arm kit in bright green for my 1996 ZJ. Ive had the kit for about a year now and i have to say, im extremely impressed, over 1000 miles off-road and roughly 20,000 miles on the highway. These control arm kits for any vehicle built by core 4x4 are well worth the money, just be aware thereight be some minor scatches or chips from shipping ( but who should care about that if you're beating the crap out of em' they way they were built and designed for)
Review photo 1 Review photo 2
BA
bryan angell Jun 26, 2025
★ ★ ★ ★ ★ Google
First off amazing products. I got a set of adjustable control arms for my XJ and it is so nice to be able to dial in caster and pinion angles. A quick call and I was able to purchase an adjustable track.
Review photo 1
MN
Mike Nielsen Nov 23, 2025
★ ★ ★ ★ ★ Google
The customer service is first class. I had an issue with a track bar I installed on my F350. I don’t have any other Core 4x4 parts yet, but with the way I was treated, I know their parts are well done, because they went above and beyond to make sure I was made whole. They wouldn’t be in business if they had to take care of a lot of people like they took care of me. Will definitely be back when it’s time to build the Jeep!
OA
Owen Adams Sep 24, 2025
★ ★ ★ ★ ★ Google
These guys are awesome I messed up my address on my order somehow and they were so so helpful Korby was right there every step to a solution very communicative and respectful I will definitely be ordering parts with them in the future!
SG
Sal Giordano Sep 24, 2025
★ ★ ★ ★ ★ Google
I want to take the time to share my experience with Core 4x4. I have a 2004 Jeep Wrangler and was looking to upgrade some suspension parts. I went with Core 4x4 upper & lower adjustable control arms and a front adjustable track bar. Everything arrived quickly, and right out of the box I was impressed with the quality and craftsmanship. I had a few questions during installation (measurements and torque specs), and I spoke with Korby on a couple of occasions. Not only did he send me detailed instructions, but he also shared an installation video specific to the part and vehicle I was working on, something you don’t get from many companies. The control arms fit perfectly, look great, and perform exactly as I hoped. I did run into an issue with the front track bar touching the front diff. When I reached out, Korby had me send pictures and then immediately offered two solutions: his bar guy could make a different bend and send it out to me, or I could get a full refund. His response honestly blew me away. As much as I wanted to run the Core 4x4 track bar, I chose the refund. Korby sent me a prepaid shipping label right away, no hassle. My experience with Core 4x4 has been excellent. Korby was extremely understanding, communicative, and helpful every step of the way. The parts I received were high quality, and the customer service was second to none. I would absolutely recommend Core 4x4 10 out of 10 times and will be using them again. Just a great American company with awesome people who truly care about their customers. Thank you Korby, and thank you Core 4x4!

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.
Hardware No Hardware, Complete Kit
Vehicle Jeep Wrangler JK / JKU (07–18)
Brand CORE 4X4
Series Cruise Series
Note to Core4x4: -
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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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