Rock Slide Engineering Appalachian Stubby Front Bumper | Winch Plate | Full Steel | 2007-2018 Jeep Wrangler JK | SKU FB-S-310-JK
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Shipping & Delivery
Free shipping is available within the lower 48 U.S. states. Large or heavy items may ship by freight, and delivery timing can vary by warehouse, carrier, and product availability.
Fitment, Shipping & Product Support
The Rock Slide Engineering Appalachian Stubby Front Bumper (SKU FB-S-310-JK) is the no-wing full steel front bumper for the 2007–2018 Jeep Wrangler JK. All-steel construction at 100 lbs — 30 lbs lighter than the steel mid-width Appalachian (FB-F-310-JK, 130 lbs) by eliminating the wing sections entirely. Integrated steel winch plate, steel tow hook attachments, dual D-ring recovery points, two 4-inch factory-position fog light pockets, and a removable bull bar accepting a 20-inch light bar. Winch and recovery loads transfer through steel hardware throughout — no aluminum in the load path. Estimated 2-hour install on a stock JK. Sold as a single unit.
The stubby configuration eliminates the wings entirely. For outboard auxiliary lighting mounts, see the steel mid-width (FB-F-310-JK). For a lighter aluminum stubby, see FB-S-300-JK (67 lbs).
Component Specifications
| Spec | Detail |
|---|---|
| SKU / Part Number | FB-S-310-JK |
| Brand | Rock Slide Engineering |
| Series | Appalachian |
| Style | Stubby front bumper — no wings |
| Material | Steel — full steel construction |
| Winch Plate | Steel — integrated |
| Tow Hook Attachments | Steel |
| Finish | Powder coat — textured black |
| Weight | 100 lbs |
| Install Time | Approximately 2 hours — stock JK |
| Recovery Points | 2x D-ring mounts |
| Light Pockets | 2x 4-inch — factory fog light position |
| Bull Bar | Removable — accepts 20-inch light bar |
| Wings | None — stubby configuration |
| Country of Origin | United States |
| Sold As | Each — single unit |
What Is and Is NOT Included
| Item | Included |
|---|---|
| Appalachian Stubby front bumper — full steel | ✓ |
| Integrated steel winch plate | ✓ |
| Steel tow hook point attachments | ✓ |
| Removable bull bar | ✓ |
| D-rings | ✓ |
| Winch | ✗ NOT included |
| Light bar | ✗ NOT included |
| Fog lights | ✗ NOT included |
Appalachian JK Front Bumper Comparison
| Style | Material | SKU | Weight | Wings | Best For |
|---|---|---|---|---|---|
| Mid — Steel | Full steel | FB-F-310-JK | 130 lbs | Removable | Maximum structural integrity with outboard lighting mounts |
| Mid — Aluminum | Aluminum / steel composite | Confirm SKU | 73 lbs | Removable | Weight reduction with same mid-width configuration |
| Stubby — Steel — this listing | Full steel | FB-S-310-JK | 100 lbs | None | Maximum approach angle — full steel at 30 lbs less than steel mid-width |
| Stubby — Aluminum | Aluminum / steel composite | FB-S-300-JK | 67 lbs | None | Maximum approach angle — lightest JK Appalachian configuration |
Verified Fitment — 2007–2018 Jeep Wrangler JK
| Trim | Years | Status |
|---|---|---|
| JK X / Unlimited X | 2007–2010 | ✓ |
| JK Rubicon / Unlimited Rubicon | 2007–2018 | ✓ |
| JK Sahara / Unlimited Sahara | 2007–2018 | ✓ |
| JK Sport / Unlimited Sport | 2010–2018 | ✓ |
| JK 70th Anniversary / Unlimited 70th Anniversary | 2011 | ✓ |
| JK 75th / Sport S / Unlimited Sport S / Unlimited 75th | 2016 | ✓ |
| JK Sport S / Unlimited Sport S / Unlimited Rubicon / Unlimited Sahara / Unlimited Sport | 2018 | ✓ |
| Jeep Wrangler JL — all trims | 2018–2026 | ✗ Different frame mounting geometry — see FB-S-310-JL |
| Jeep Gladiator JT | 2020–2026 | ✗ JT-specific bumpers required — see FB-S-310-JL |
| Modified vehicles with aftermarket bumper mounts | Verify before ordering | ⚠️ Non-standard configurations may affect fitment |
Critical Compatibility
| Configuration | Notes |
|---|---|
| Jeep Wrangler JL — 2018+ | Does not fit — JL frame mounting geometry differs from JK. See FB-S-310-JL for JL/JT stubby fitment. |
| Jeep Gladiator JT | Does not fit. See FB-S-310-JL. |
| Winch compatibility | Verify your winch footprint matches the integrated steel winch plate bolt pattern before ordering. |
| Lifted builds with modified front-end components | At 100 lbs of additional front-end weight, confirm suspension and steering components are appropriate for the load. |
| Modified vehicles with aftermarket bumper mounts | Confirm factory frame mounting points are undamaged and in stock location. |
| Light bar larger than 20 inches | Bull bar accepts a 20-inch light bar maximum. |
| Outboard auxiliary lighting mounts | Not available on the stubby — order FB-F-310-JK for outboard wing lighting mounts in steel. |
Common Questions
How do I confirm my winch is compatible? Check your winch's bolt pattern against the Rock Slide Engineering integrated steel winch plate specification before ordering. Winch bolt patterns vary by manufacturer and model. Text (469) 407-7538 if you need help confirming before purchase.
Steel stubby vs. aluminum stubby — which is right? Same configuration, different construction. The steel stubby (FB-S-310-JK, 100 lbs) uses full steel construction throughout — no aluminum in the load path — for greater structural integrity under sustained trail impacts. The aluminum stubby (FB-S-300-JK, 67 lbs) uses an aluminum outer shell with steel load-bearing components, saving 33 lbs. For moderate to aggressive trail use where sustained impact loads are expected, full steel is the correct choice. For a daily driver with occasional trail exposure, the aluminum variant saves meaningful front-end weight.
Can I run this without the bull bar for maximum approach angle? Yes. The bull bar is independently removable without affecting the main bumper shell, D-ring mounts, or factory fog light pockets. Remove it for maximum approach angle, reinstall when the 20-inch light bar capability is needed.
At 100 lbs, what should I check before installing on a lifted JK? Confirm your front track bar, control arms, steering components, and front springs are rated for the additional front-end load. At 100 lbs, the weight impact on steering feel, handling, and suspension geometry is meaningful — particularly on builds with significant lift or modified front-end components. Professional installation is recommended for winch mounting and recovery point torque specifications.
The Obsidian Take
The Appalachian Stubby in steel (FB-S-310-JK) is for the JK owner who wants maximum approach angle with full steel construction — winch capable, dual recovery points, 100 lbs, no wing footprint, no aluminum in the load path. Thirty pounds lighter than the steel mid-width at the cost of outboard lighting mounts that most approach-angle-focused builds do not need.
Three decisions before ordering. First — steel or aluminum? If sustained impact loads under moderate to aggressive trail use matter, steel is correct. If weight reduction is the priority, the aluminum stubby (FB-S-300-JK) saves 33 lbs. Second — verify your winch bolt pattern against the integrated steel winch plate. Third — at 100 lbs, evaluate suspension and steering component condition on a lifted build. If all three check out, this is the correct bumper for your JK.
⚠️ California Proposition 65 Warning: This product may expose you to chemicals known to the State of California to cause cancer or reproductive harm. For more information visit P65Warnings.ca.gov.
Non-Returnable Notice: Structural and body protection products that have been installed or modified are non-returnable. Verify fitment, winch compatibility, model year, and trim before ordering.
Manufacturer Data Disclaimer: Specifications and fitment data are sourced from Rock Slide Engineering manufacturer documentation. Obsidian Forged Auto Supply is an authorized Rock Slide Engineering dealer. Verify final fitment against your vehicle's VIN, model year, and any modifications before ordering. Manufacturer specifications are subject to change without notice.