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
Collapsed Length (in): 16.97
Extended Length (in): 28.44
Stroke/travel Length (in): 11.47
Lower Mount Type: Bar Pin
Upper Mount Type: Stem
Internal Design: Monotube
Finish: Zinc Plated
Reservoir: No
Body Design: Smooth Body (Non-Coilover)
Body Diameter (od): 2.0 in.
Piston Diameter: 46mm
Boot Included: Black Bellows
Replacement Mounting Kit: B4-KT1-Z097A00
Spring Seat Included: No
Shaft Diameter: 14mm
Adjustable Damping: Non-Adjustable
| Make | Model | Submodel | Years |
|---|---|---|---|
| Jeep | Cherokee | 1984 - 2001 | |
| Jeep | Comanche | 1986 - 1992 | |
| Jeep | Grand Cherokee | 1993 - 1998 | |
| Jeep | Grand Cherokee | 1999 - 2004 |
| Vehicle | Jeep Cherokee XJ (84–01) or Jeep Comanche MJ (86–92) or Jeep Grand Cherokee ZJ (93–98) or Jeep Grand Cherokee WJ (99–04) |
| Brand | Bilstein |
| Placement on Vehicle | Front |
| Mounting Style | Bolt-On |
Reviews of Core 4x4
5.0
★
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132 reviews
EC
Eric Cox
Jul 26, 2025
★
★
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★
Prompt, professional, and courteous service! Quality parts and broad assortment of products to suite your 4x4 needs:)
RM
R2d2 Movi78
Feb 21, 2026
★
★
★
★
★
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.
RT
Ruby Timm
Apr 27, 2025
★
★
★
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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
CL
Cade Leith
Mar 23, 2024
★
★
★
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★
Have full upper/lower CA set on both front and rear axles on a 96 ZJ. These are the rubber bushing sets not joint sets. I have beat the hell out it in the Nevada desert for 2 years and has been great. I don’t go fast but I do articulate suspension a lot. Super solid and haven’t any issues. Just inspected the entire set recently due to some banging under it. Turns out the banging is lower rear shock bushings. Inspected each CA along the way nothing. Aside from dirt and obviously winter roads and what not still in excellent condition, bushings are solid like the day they were installed. I’ll add that I’m about tapped on a short arm at 4.25(less with settle) so the front CA’s get beat on just from that, still they’re like new. Paint is great condition, this set is red. I would definitely buy again. Another plus for me, Utah isn’t local necessarily, but it’s nice to support businesses closer to me.
AL
Andrew LaFave
May 27, 2025
★
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I am really please with this company. Great product, i had an issue with a couple of the jonnhy joint bushings, they explained what had caused it and how to fix it. Within hrs of receiving my inquiry, i had heard back with the required info I needed. A couple hrs later problem was fixed and ready for the trail again. They care about heir product and their customers. Thanks crew, you rock
LS
Leonard Smith
Jan 22, 2026
★
★
★
★
★
I don’t write reviews often, but Core 4x4 absolutely earned this one.
I recently ordered leaf spring mounts and realized after the fact that I messed up my order. Totally my mistake. Instead of giving me the runaround or pointing at a return policy, Core 4x4 emailed me back and forth, worked through exactly what I was doing with my build, and made sure I ended up with the correct parts.
That kind of customer service is rare these days — especially in the off-road world where a lot of companies stop caring once the order is placed.
The parts themselves are exactly what you hope for: solid, well-made, confidence-inspiring hardware that looks like it belongs under a vehicle that actually gets used. You can tell these are designed by people who understand suspension geometry and real-world abuse, not just CAD screenshots.
Mistakes happen — especially on custom or modified builds — and Core 4x4 handled mine like pros. Fast responses, clear communication, and a genuine effort to help me get it right.
If you’re on the fence: don’t be. Core 4x4 is the kind of company you want backing your build — the kind that treats customers like fellow enthusiasts, not order numbers.
HK
Harold Kruder
Mar 23, 2024
★
★
★
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I needed some parts and had to replace 1 lower control arm and their customer service is great. Helped with answering my questions and got parts shipped quickly.
JJ
JT JT
Dec 23, 2025
★
★
★
★
★
We have all shopped places where the person on the phone makes you feel like they don't have the time to talk to you the customer or answer your questions. I can tell you first hand that's not Core 4x4. They have the best customer service I have seen so far. They have taken the time to respond to all of my questions in a very prompt and professional manner, taking the time to answer each and every question I have had. Lets put it this way if Core 4x4 sells a product I am wanting for my truck I will buy it from them, I highly recommend Core 4x4.
A
Adam
Oct 24, 2025
★
★
★
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I couldn't have been more excited for the initial unboxing of these new Core 4x4 UCA's!
They appear to be so well built and just a true quality product.
Installation was a breeze and the initial testing with the forklift appears to have given me some additional flex with less binding on the rest of the components now that the geometry is back properly aligned.
Time will tell how they hold up on my near future off-road adventures but I don't have any doubt that they are up to the task!
RH
Roger Hooks
Jun 26, 2025
★
★
★
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2018 Ram 2500 Rear Control Arms and Rear track Bar been running for about a year, Great Solid Products and great one on one customer service, same day response with issue resolved!
Thanks Korby!
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Specifications
| Vehicle | Jeep Cherokee XJ (84–01), Jeep Comanche MJ (86–92), Jeep Grand Cherokee ZJ (93–98), Jeep Grand Cherokee WJ (99–04) |
| Brand | Bilstein |