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100.00

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J-JK-K12-HWK

SKU: J-JK-K12-HWK

100.00 100.0 USD 100.00

100.00

Not Available For Sale

Starting at $110/mo or 0% APR with . See if you qualify

Build Your Kit

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4–8 hr install Moderate Alignment recommended Lifetime warranty on all non-wear items United States

Front Lower Control Arm Hardware Kit Includes: 4 9/16” x 4” high grade bolts, 4 9/16” top lock nuts, 8 9/16” flat washers Front Upper Control Arm Hardware Kit Includes: 4 12mm x 80mm high grade bolts, 4 12mm top lock nuts, 8 12mm flat washers Rear Lower Control Arm Hardware Kit Includes: 4 9/16” x 4” high grade bolts, 4 9/16” top lock nuts, 8 9/16” flat washers Rear Upper Control Arm Hardware Kit Includes: 4 9/16” x 4” high grade bolts, 2 9/16” top lock nuts, 2 9/16” catch tabs, 8 9/16” flat washers Front Track Bar Hardware Kit Includes: 2 9/16” x 2.75” high grade bolts, 2 9/16” top lock nuts, 4 9/16” flat washers Rear Track Bar Hardware Kit Includes: 2 9/16” x 2.75” high grade bolts, 2 9/16” top lock nuts, 4 9/16” flat washers

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Reviews from Google

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5.0
132 reviews
5
97%
4
2%
3
0%
2
1%
1
0%
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.
RC
Ryan Colligan Mar 4, 2026
Google
I have nothing but good things to say about Core 4x4. I have the crawler series on my JKU and we take it all over the place. These parts handle everything we throw at them.
MT
Marcus Torres Jan 15, 2026
Google
Best control arms I have installed on any of my builds. After running every major manufacturer, Core 4x4 is on par or better than all the high-end companies at a fraction of the cost. Lifetime warranty is the cherry on top.
K
Korosunagi Jul 26, 2025
Google
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!
C
caleb Mar 24, 2022
Google
Absolutely a great company. Ordered rear lower control arms with hardware but when i got it the hardware wasn't there but they sent it out right away and got a free t-shirt! Highly recommend.
MP
Mirko Pompili Mar 19, 2026
Google
I want to share a truly positive experience. I ordered a car kit consisting of two packages, but unfortunately one was lost during shipping with UPS. The situation could have become complicated... but it didn't. The company manager was extremely helpful and professional: he personally followed up on the situation and did everything he could to resolve the issue, even sending me the package again without hesitation. It's rare to find such attentive and reliable customer service these days. My sincere congratulations on your professionalism and commitment: that makes all the difference.
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)
D
DSI Jul 26, 2025
Google
Great products with excellent customer service after the sale
JI
Jerome Segura III Jun 26, 2025
Google
I bought the 16pc Cruise Series Adjustable Control Arm, Track Bar, Steering, End Link Kit to replace a worn budget 4" lift on my used JKU. These are top quality parts; very solid. Customer service is unsurpassed. They even matched prices on my order placed before the tax day sale. I made an error in ordering a drag link flip kit; they were quick to help me fix this too. There's peace of mind knowing these components are made in the USA. Thank you. 👍👍
RH
Rex Hodges Jun 26, 2025
Google
After ordering an upper and lower adjustable control arm kit manufactured by CORE 4X4 from a jeep parts distributor who's intials are E.T., they came with 3 of the threaded ends missing. After over 2 months of phone calls and emails to this E.T. company nothing was resolved. I finally decided to call CORE 4X4 myself and tell them my dilemma. I spoke with a very personable and professional gentleman named Korby, who is one of CORE 4X4's representatives, after a brief discussion of what I went thru he simply asked me for a picture and some measurements and the items I was missing and asked if I could cover ONLY the cost of shipping and I had my missing parts in exactly 1 weeks time. This company not only builds all it's parts in the U.S.A., they stand behind their products with great customer service and life time warranty. My experience with this company and their Rep Korby was fantastic. I would definitely recommend CORE 4X4 to anyone who needs parts for any 4x4 projects. You just can't beat their quality and service. Rex Hodges Valparaiso, Indiana
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