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
★
★
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132 reviews
RR
Ryan Rogers
Aug 25, 2025
★
★
★
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★
I purchased a set of the Cruiser Series control arms for my Jeep Jk based on postive reviews from different Jeep Facebook pages. Ordered and 2 days later realized they had the very same exact arms on sale in the overstock section. Called them up and they refunded me the savings from my original purchase. Amazing, honest service. Can't wait to get them installed. Keep up the good work guys.
MG
Morgan Griffith
Mar 25, 2018
★
★
★
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★
I met a couple of the Core 4x4 guys at the Salt Lake Offroad Expo and decided to try them out after noticing one of my control arm bushings was disintegrated. I called to discuss parts on Thursday and I was leaving for a trip on Saturday. These guys built my control arms and had them ready to be picked up Friday, 24 hours later. The parts seem to be great quality and they charged me nothing extra to have them painted. These guys were extremely helpful and without them my trip probably would have been cancelled. looking forward to testing out the arms on my next trip to Moab.
BZ
Brandon Zeiders
Dec 23, 2025
★
★
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I ordered the jeep xj long arm lift kit. Control arms showed up first they turned out amazing!! Had some issues with the powder coating on the cross member and sent korby and the team at core4x4 an email. They got right on making me another cross member and sending it out. I appreciate all the help they've given me along the way. Very fast response thru emails. Build quality seems to be pretty dang nice!! Can't wait to install it and enjoy it!
K
Korosunagi
Jul 26, 2025
★
★
★
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I broke a grease fitting off in my end link. I thought I was going to have to buy a new one. Reached out to Core 4x4 and wham! bam! They fixed it and sent it back with 2 day shipping. Got it a day early even. If they couldn't fix it they were going to send me a new one. Now that's customer service! They are now a permanent part of my garage.
Thank you Core 4x4!
ZA
Zen Asher
Mar 23, 2025
★
★
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The quality and durability of the arms are the best. They are super heavy duty. And lifetime warranty is crazy
MM
MIKE (Mike the Mechanic)
Jul 26, 2025
★
★
★
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Amazing company and customer service!!!! I messed up on my order and the fixed it immediately. Would definitely recommend them. Can't wait to hit the trails with their product.
WT
William Turton
Nov 23, 2025
★
★
★
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★
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
MS
Mr. Smith
Nov 23, 2025
★
★
★
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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!
JM
Jason Mitchell
Dec 8, 2025
★
★
★
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Installed the full kit on my XJ. Ride quality is night and day better than what I had before. The articulation on the trail is insane. These guys know what they are doing. Already recommended Core 4x4 to everyone in my club.
D
David
Nov 23, 2025
★
★
★
★
★
First of I just want to say Great customer service korby Has helped me from the start and has not let me down! Reached out to him again today and he was able to warranty some parts out for me.
As far as the quality of the parts.. excellent! The build quality is great. I can definitely tell a
Difference from the cheap oem rear control arms to these and the pan hard bar.
Color, From what I can tell it’s super durable been through a few mud holes on top of the daily road grime and after a quick wipe they still pop!
Overall I recommend. Customer service is everything for me and it’s definitely there at Core 4x4.
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Specifications
| Vehicle | Jeep Wrangler JK / JKU (07–18) |
| Brand | Artec |
