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Jeep Wrangler JL / JLU 18+ Rear Bump Stop
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52.45 52.45 USD 52.45

52.45

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Order today — ships by Mon, Jun 1
Salt Lake City, UT change
Order by 3:00 PM MT today — we'll start tomorrow
See full timeline
Lifetime warranty Fitment guarantee Ships from Orem, UT 4–8 hr install
Free mounting hardware included — a $15 value
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COLOR 11 colors — pick yours
https://core4x4.com/web/image/product.template/2179/image_1920?unique=982bc5a

Rear Bump Stop

Jeep Wrangler JL / JLU 18+ Rear Bump Stop
SKU: J-JL-R-BSK
Pick your vehicle to confirm fit

52.45 52.45 USD 52.45

52.45

COLOR 11 colors
Black Blue Charcoal Green Light Green Orange Purple Red White Yellow Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed.

Build Your Kit

  • Vehicle
    Confirm this matches your vehicle. Use Shop by Vehicle to filter correctly.
  • Brand
  • Color
    Powder coat color for control arms and track bars. Does not affect performance.
  • Height
  • Note to Core4x4:

Select Color to see price and add to cart.

Order today — ships by Mon, Jun 1
Salt Lake City, UT change
Order by 3:00 PM MT today — we'll start tomorrow
See full timeline
Free mounting hardware included — a $15 value

Alignment recommended Lifetime warranty on all non-wear items Made In USA

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

Essential Protection for Your Lifted Jeep

Upgrading your 2018+ Jeep Wrangler JL with increased suspension flex and lift? Ensure your rig is protected from over-compression damage with CORE 4X4 Rear Bump Stop Extensions (J-JL-R-BSK). Factory bump stops become inadequate as lift height increases, which can lead to tire-to-fender contact, frame stress, and component damage. These extensions correct bump stop engagement, preventing costly issues while maintaining optimal suspension travel.

Key Features and Benefits

  • Prevents Over-compression Protects Components – Properly limits suspension travel to prevent tire contact, fender damage, and excessive stress on suspension components.
  • Premium Construction for Maximum Durability – Crafted from heavy-duty 3/16” steel, ensuring superior strength in extreme conditions. Laser-cut for a precise fit and long-lasting durability.
  • Offset Design for Improved Alignment – Unlike traditional puck-style extensions, our offset design maintains correct bump stop alignment, ensuring even load distribution and reducing stress on the mounts.
  • Straightforward Installation – Simple bolt-on process, utilizing existing bump stop mounts for a hassle-free install. Includes all necessary hardware for a complete and secure fit.

Precision Fit for Any Suspension Setup

Available in multiple sizes to accommodate various lift heights, ensuring proper bump stop engagement without sacrificing suspension performance.

Two-Stage Powder Coating for Maximum Durability

Each component undergoes a zinc primer base coat for corrosion resistance, followed by a top coat available in 10 colors, allowing you to customize your Jeep while protecting against rust and wear.

Proudly Made in the USA

Manufactured at our Orem, UT facility, we maintain strict quality control and support local suppliers, ensuring rugged durability and premium craftsmanship.

 

  • Vehicle Fitment: Jeep Wrangler JL 18+ – Perfect for lifted Jeeps, offering protection against tire-to-fender contact, frame stress, and component damage by correcting bump stop engagement for optimal suspension travel.

  • CORE Advantage: Prevents overextension, protects components from excessive stress, and ensures proper suspension travel, reducing tire contact and frame damage while maintaining ride quality.

  • Multiple Sizes Available: Available in multiple sizes to accommodate various lift heights, ensuring proper bump stop engagement for smooth suspension movement without sacrificing performance or comfort.

  • Construction: Rear bump stop extensions are crafted from heavy-duty 3/16” steel, laser-cut for a precise fit. Built to endure extreme off-road conditions, these extensions provide maximum durability and longevity.

  • Two-Stage Powder Coating: Zinc primer base and top coat available in 10 vibrant colors protect against corrosion and allow for personalized styling of your rig.

  • Warranty and Origin: Proudly manufactured in the United States, our product includes a lifetime warranty on all non-wear items, providing you with confidence and peace of mind in your purchase.

Built With

Rear Bump Stops laser cut from 4” x 3” Rectangle 3/16” Wall Tube.

Make Model Submodel Years
Jeep Wrangler 2018 - Present

Construction & Materials

Rear Bump Stops laser cut from 4” x 3” Rectangle 3/16” Wall Tube.

Vehicle Jeep Wrangler JL / JLU (18–Present)
Brand CORE 4X4
Color Black or Blue or Charcoal or Green or Light Green or Orange or Purple or Red or White or Yellow or Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed.
Height 3" or 4"
Placement on Vehicle Rear
Mounting Style Bolt-On

Use the vehicle selector on our website to shop by your year, make, and model. On product pages, use the kit builder to select your color, series, lift height, and any add-on options, then add to cart. If you need help, call or email our team.

Standard orders typically ship within 1–3 business days of ordering. Custom color orders take approximately 5–10 business days. Because everything is built in-house, we can turn orders quickly even for custom specifications.

You can reach our team through the contact form on our website, or browse to the Contact Us page. Our team is available to answer pre-sale and technical questions before and after your purchase.

Google

Reviews of Core 4x4

See all on Google
5.0
132 reviews
5
97%
4
2%
3
0%
2
1%
1
0%
MR
Melanee Raynes Mar 25, 2019
Google
Awesome product and service! I even got some of their swag because it looked pretty darn good. I will definitely be going back and would suggest this business to others looking for quality control arms. Buy local!
MD
Mark DiGrappa Apr 27, 2025
Google
First off: Korby, the gentleman that helped me decide on which kit to go with is EASILY the nicest, and most patient person I’ve dealt with, when ordering parts for this build. Second: the quality of the product is INSANE! These parts are so nicely fabricated, then powder coated for extra longevity, and they even offer an aluminum upgrade in some cases (which I went with, to save weight). Having said all of this, the most impressive thing was the lead time. These parts are build to order, and I literally ordered my suspension one week ago, today! Yes, they built, powder coated, packaged, shipped my suspension components (RAM 1500 Track rear trailing arm full set in 7075 aluminum, and front upper control arms), AND they arrived, all within a week! Granted, that I’m only one state away, but WOW!!! One week?! Amazing! So, in sort: excellent products, which arrived excellently packaged (no damage, an boxes not over-stuffed with heavy suspension parts; three boxes total, as opposed to one super heavy one…my back thanks you), super quickly, and customer service that ANY business would be envious of….so, if you’re in the market, absolutely go with Core 4X4!
BS
Bailey Smith Mar 23, 2025
Google
Core 4x4 excels with precision and service and keeps nothing else higher in mind. Everyone I've met at the company is very honest and down to earth, 10/10 would recommend.
SC
Singer Heating and Cooling Mar 25, 2018
Google
These guys are great. You can get them on the phone for support. This important and is not always the case with other custom parts builders. Their control arms are bomb proof and offer plenty of options. You can get real genuine Currie Johnny joints without paying the price for Currie arms.
JJ
Jason Jukich Jul 26, 2025
Google
Fast shipping, excellent communication, and awesome products
CL
Colten Lockwood Mar 25, 2019
Google
Recieved warrenty exchanges for my control arms last night couldnt be happier!!! Lets talk about the arms tho! Great quality arms in multiple styles and colors!!! I purchased the teir 3 short arns for my 98 xj. I can say that they setoff nicely so my 35 inch tires do not rub! As long as you can get a photo or video of broken hardware core will take care of you. The body of the arm is bulletproof. However make sure to maintain and grease the joints regularly as with any greaseable joint and they shouldkast forever. I had a few problems arise a year after purchase and after some troubleshooting spence was able to help get me the correct parts to get back on the road. I recommend this setup to any and all jeepers looking to get away from the stock arm setup. Alltogether i am Very happy with the performace of my control arms!!!! Mechanic and bodyman of 12 years and my first choice for quality control arms!!
RM
R2d2 Movi78 Feb 21, 2026
Google
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.
AM
Adam M Sep 24, 2025
Google
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👌🏽
Review photo 1 Review photo 2 Review photo 3 Review photo 4
BC
Brad C Mar 24, 2021
Google
Outstanding experience! I asked Core to build me a set of custom control arms that were larger/heavier than they normally build. They gladly accepted the challenge and turned out an expertly crafted and super strong product ahead of schedule. Fit and finish are excellent. Spence and Cameron were a pleasure to work with every step of the way. And all of this for a very reasonable price. I highly recommend these guys!
Review photo 1
DN
Devan Nelson Mar 25, 2019
Google
Had a great experience with Core 4x4, I desperately needed a custom track bar and found out just a couple days before Easter Jeep Safari. Spence was a huge help and made it happen with plenty of time to spare. Their parts are top notch!

Specifications

Color Black, Blue, Charcoal, Green, Light Green, Orange, Purple, Red, White, Yellow, Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed.
Height 3", 4"
Vehicle Jeep Wrangler JL / JLU (18–Present)
Brand CORE 4X4
Note to Core4x4: -
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