Skip to Content
Back to Shop

179.00 179.0 USD 179.00

179.00

Not Available For Sale

Built to order · Ships in 3–5 days

Choose Options & Buy →
https://jerdev.core4x4.com/web/image/product.template/27590/image_1920?unique=2d5d26f

Master Rebuild kit for CMP-T-4R-03-K5

SKU: CMP-T-4R-03-K5-MRK

179.00 179.0 USD 179.00

179.00

Not Available For Sale

Select Color to see price and add to cart.

Lifetime warranty on all non-wear items United States

Not Sure Which X-Series? Compare All Three.

Same American steel. Same warranty. Same quality. Choose by how you drive.

VIEWING NOW
Tagline "Daily Confidence" "Weekend Ready" "Trail Domination"
Joint Type Polyurethane Bushings Johnny Joint (Single) Double Johnny Joint
Articulation ~30% ~65% ~95%
Tubing 1.625" OD / 3/16" Wall DOM 1.75" OD / 5/16" Wall DOM 1.75" OD / 5/16" Wall DOM
Price $148 $179 $210
Maintenance Zero Periodic grease Periodic grease
Best For Daily driver, light trails Weekend warrior, moderate off-road Hardcore builder, competition
Warranty Lifetime ✓ Lifetime ✓ Lifetime ✓
Made in USA Orem, Utah
Lifetime Guarantee Unconditional
10 Colors In-house powder coat
Ships in 3 Days From our UT facility
Fully Adjustable 0-6" of lift
3 X-Series Options Only Core 4x4

Why Builders Choose Core 4x4

The only aftermarket suspension brand with an X-Series product system

vs. MetalCloak

One price point, no tier options. Core 4x4 Crawl matches their performance at a better price with a better warranty.

vs. Teraflex

Skip a grease interval? Warranty voided. Core 4x4 Cruise requires zero maintenance — and our warranty covers everything.

vs. Clayton / Budget

Cheaper arms exist. But adjustable, American-made, 10 colors, lifetime guarantee, and an upgrade path? Only Core 4x4.

Everything you need to refresh your suspension.

This rebuild kit includes all the essential components needed to replace common wear items and restore performance.

CE-9110NRK × 2

CE-9112NRK × 3
This listing includes all 3 required units.

BSH-CB-2891 × 2

BSH-CB-2314 × 2

BSH-CB-7087 × 1

See It Installed

Install videos and build guides on our YouTube channel.

Watch more installs on YouTube
Google

Reviews from Google

See all on Google
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.
BM
Brantly Musgrave Jan 22, 2026
Google
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!
KK
Kevin Kinard Oct 24, 2025
Google
Great product, excellent customer service. I mistakingly ordered a track bar for the wrong year model and Korby helped me out by sending me the correct part that I needed no questions asked. I highly recommend.
GC
Grant Chaisson Jun 26, 2025
Google
These guys are awesome!! They have helped me build multiple jeeps from zjs to mjs and now with my lj build they all ways impress. There products are the best on the market in my eyes. The best part about it all is it's all made right here in american and shipped anywhere in the world 🌎 . Don't think twice when your looking for control arm or lift kits for your vehicle if these guys sell it BUY IT!!!
EG
Erica Grissom May 27, 2025
Google
First off, I wish I knew about them sooner. The customer service is top tier. The response time is about 30 min no waiting 1-3 days to get a response. The parts are heavy-duty and look amazing. The packaging is perfect, I can't wait to hit some trails. Thanks Core4x4
GK
GLENN KOSZKA Apr 27, 2025
Google
The folks at Core 4X4 are always wonderful to deal with. They explain your options and never pressure or rush things. The quality of the Core Control Arms is top shelf, especially if your goal is to stop wheel hop. I recommend Core 4x4 without reservation ! ! !
JL
John Luna Nov 23, 2025
Google
Great team, and help to support my jeep and provide best stuffs
SA
Samuel “SamDaman904” Anscher Mar 23, 2024
Google
I meant to put this reviewing about a year ago now, but ever since I’ve had the core 4 x 4, upper and lower control arms on my 2017 ram 1500, they have worked flawlessly leave been on many offering chips, and I’ll definitely be buying new accessories from them in the future and their new upper control arms that they’re offering for all of the ram trucks. Fantastic customer service fantastic health very automotive, off-road, friendly, and any aftermarket thing for your truck or SUV that they currently have!
Loading…
Add vehicle
SHOP BY VEHICLE
Home