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
Nighthawk JKU Rear Bumper. The finishing touch to our Nighthawk JK Armor Line - Our Rear Bumper has the same hard lines as our Front Bumper and tucks in high and tight to keep from dragging on the trail. From 1/8 inch CNC laser cut and formed steel. Internally gusseted for ultimate strength. High clearance design hugs factory frame for no loss of clearance or departure angle
Features:
- Sold as Each
- 3/4 inch thick high strength alloy steel frame brackets double as shackle mounts
- High Clearance ends ensure you don't get hung up on rocks
- Available in bare steel to allow customizable color coordination
- Contoured to perfectly fit the subtle curves of your Jeep
- Shown Painted for illustration. Items will arrive Inch bare steel
- Depending on model year of Jeep frame holes may need to be re-drilled to install bumper
- See Installation tab for drill template
- Made in USA
| Make | Model | Submodel | Years |
|---|---|---|---|
| Jeep | Wrangler | 2007 - 2018 |
| Vehicle | Jeep Wrangler JK / JKU (07–18) |
| Brand | Artec |
| Placement on Vehicle | Rear |
| Mounting Style | Bolt-On |
Reviews of Core 4x4
5.0
★
★
★
★
★
132 reviews
MS
Mr. Smith
Nov 23, 2025
★
★
★
★
★
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!
A
Aaron
Mar 23, 2024
★
★
★
★
★
I have recently come to know Core 4x4 when I purchased a Jeep XJ and was looking for a place that had dedicated XJ suspension and components. Here is what makes them different than most other shops. All of their components are top shelf quality and they back it up if you break any of it. I was able to see their shop when I picked up an order locally and was impressed with their attention to detail and how they assemble and powder coat each part. I had an issue with a shackle and needed the threaded shaft to be shorter. I called in and talked to Kaden and he told me to come by and they would shorten it for me. When I got there, Kaden and Spencer (the owner) met me and talked about options and proceeded to make the right adjustments to fit my XJ. Told me if anything changes in the future and I need additional length, they would take care of me. So what really sets them apart from others is their Customer Service. Try calling in to any other Jeep suspension or part shop and see how they treat you. Been there - done that.
Will continue to do business with Core and their team. Getting that kind of service for just a shackle has me thinking I may need to replace my JT components with Core's. Thanks Guys for being helpful good humans!
AM
Adam M
Sep 24, 2025
★
★
★
★
★
First time buying from Korby @ Core 4x4 and it’s being nothing short of a great experience. I bought the non adjustable Trail kit for my 5th Gen Ram 1500 with a 2” lift. The welds look great, nice powder coat finish and quality bushing. Had some trouble fitting the grease nipples due to the powder coating but a thread tap would fix that. They fit easily and perform great. I felt the improvement straight away. No more wheel hop on hard acceleration which was my main reason for the purchase.
I was missing some smaller bushings needed for the 5th Gen and Korby’s custom service was on point, with responsive emails and mailing out the missing parts straight away. Very happy with their products and customer service. Highly recommended company👌🏽
M
Matt
Mar 23, 2024
★
★
★
★
★
The best products on the market. 95% of my xj is core 4x4 products
Z
Zion
Sep 24, 2025
★
★
★
★
★
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.
JF
jacob fezza
Mar 24, 2022
★
★
★
★
★
I wanted to take a moment and give these guys a shout out, I’ve currently got, for my xj, their adjustable control arms, tier 4 adjustable track bar and adjustable leaf spring shackles. You can always count on a fair price, high quality products, and quick delivery. Keep up the great work guys, will definitely continue to shop with you
DS
Dana Smith
Jul 26, 2025
★
★
★
★
★
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.
BM
Brantly Musgrave
Jan 22, 2026
★
★
★
★
★
First and foremost would like to say that Core4x4s customer service is top notch and they definitely stand behind their warranty on products! Highly recommend using them for any of your off road needs! It’s rare to find a company now a days that backs their products and they do!
Had a few issues with mounts and control arms and they handled it without hesitation! Thank you!
MT
Ma TheMeatLoaf
Mar 23, 2024
★
★
★
★
★
Their website estimated 2 days to get my parts but actually took 11. No communication to let me know what’s going on. Parts were missing. Some days they answer questions, some they don’t. Didn’t let me know I’d have to alter stock bolts to fit their parts.
All around just seems like they don’t care.
DR
David Rogers
Aug 25, 2025
★
★
★
★
★
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)
Your Dynamic Snippet will be displayed here...
This message is displayed because youy did not provide both a filter and a template to use.
Specifications
| Vehicle | Jeep Wrangler JK / JKU (07–18) |
| Brand | Artec |