This kit includes 2 components, each built and powder-coated in-house.
Essential Protection for Your Lifted Jeep
Upgrading your 2018-Present Jeep Wrangler JL/JLU with increased suspension flex and lift? Ensure your rig is protected from over-compression damage with CORE 4X4 Full Bump Stop Extensions (J-JL-C-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 – Front extensions crafted from lightweight, high-strength 6061 T6 Aluminum for corrosion resistance and longevity. Rear extensions made from heavy-duty 3/16” steel, ensuring maximum strength in extreme conditions.
- 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 – Rear installation is a simple bolt-on process, utilizing existing bump stop mounts. Front installation requires removing coil springs and factory rubber bump stops, then bolting the extensions in place before reinstalling.
Precision Fit for Any Suspension Setup
Our bump stop extensions come in a range of sizes to accommodate various lift heights and suspension setups, ensuring proper suspension function without sacrificing 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/JLU 18+ – Designed for lifted Jeeps to prevent tire-to-fender contact and protect suspension components by maintaining proper bump stop engagement, optimizing suspension travel for better off-road performance.
CORE Advantage: Prevents overextension by correctly limiting suspension travel, protecting components from excessive stress, and ensuring proper engagement to avoid tire damage and unnecessary wear on suspension parts while improving ride quality.
Multiple Sizes Available: Available in various sizes to accommodate different lift heights and suspension setups, providing a precise fit and ensuring the correct bump stop engagement without compromising suspension performance.
Construction: Front extensions are made from lightweight, high-strength 6061 T6 Aluminum for corrosion resistance and longevity, while rear extensions are crafted from heavy-duty 3/16” steel for maximum durability in extreme off-road conditions.
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
Front Bump Stops machined from 2.5” 7075 Aluminum. Rear Bump Stops laser cut from 4” x 3” Rectangle 3/16” Wall Tube.
| Make | Model | Submodel | Years |
|---|---|---|---|
| Jeep | Wrangler | 2018 - Present |
Construction & Materials
Front Bump Stops machined from 2.5” 7075 Aluminum.
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. |
| Bump Stop Jounce Pad | None or New Bump Stop Rubber Pads (Available For Front Only - Not Pictured) |
| Front Bump Stop Extensions | 2" or 3" or 4" |
| Rear Bump Stop Extensions | 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.
Reviews of Core 4x4
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. |
| Bump Stop Jounce Pad | None, New Bump Stop Rubber Pads (Available For Front Only - Not Pictured) |
| Front Bump Stop Extensions | 2", 3", 4" |
| Rear Bump Stop Extensions | 3", 4" |
| Vehicle | Jeep Wrangler JL / JLU (18–Present) |
| Brand | CORE 4X4 |
| Note to Core4x4: | - |
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