Rock Slide Engineering Winch Delete Kit | Aluminum Cover Plate | 300 Series Bumpers | 2018-2026 Wrangler JL & 2020-2026 Gladiator JT | SKU FB-300-WDP
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Before ordering, verify your vehicle details, current setup, and SKU with OFAS fitment support so your upgrade matches your build.
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 Winch Delete Kit (SKU FB-300-WDP) is the aluminum cover plate that fills the winch opening on Rock Slide Engineering 300 Series aluminum front bumpers (FB-F-300-JL and FB-S-300-JL) when a winch is not installed. Precision-fit to the 300 Series bumper's winch cavity. Powder-coated textured black to match the bumper finish. Removable — if a winch is added later, the delete kit comes off without modifying the bumper. Estimated 1-hour install. Made in the USA.
This kit is compatible with Rock Slide Engineering 300 Series aluminum bumpers only. It is NOT compatible with factory bumpers, steel Appalachian bumpers, or non-Rock Slide aftermarket bumpers.
Component Specifications
| Spec | Detail |
|---|---|
| SKU / Part Number | FB-300-WDP |
| Brand | Rock Slide Engineering |
| Type | Winch delete cover plate |
| Function | Fills winch opening on 300 Series aluminum bumpers when no winch is installed |
| Material | Aluminum |
| Finish | Powder coat — textured black |
| Powder Coat Warranty | Limited lifetime warranty |
| Weight | ⚠️ Source data conflict — input lists 15 lbs; authorized distributor lists approximately 5 lbs. Verify with Rock Slide Engineering before ordering. |
| Install Time | Approximately 1 hour |
| Hardware | Installation hardware included |
| Removable | Yes — can be removed when a winch is added |
| Compatible Bumpers | FB-F-300-JL (Mid Front) and FB-S-300-JL (Stubby Front) — 300 Series aluminum only |
| NOT Compatible With | Factory bumpers, steel Appalachian bumpers, non-Rock Slide bumpers |
| Country of Origin | United States |
| Sold As | Each |
What Is and Is NOT Included
| Item | Included |
|---|---|
| Aluminum winch delete cover plate | ✓ |
| Installation hardware | ✓ |
| Rock Slide Engineering 300 Series bumper | ✗ NOT included — required, sold separately |
| Winch | ✗ NOT included |
Compatible Bumpers — 300 Series Aluminum Only
| Compatible Bumper SKU | Bumper Name | Notes |
|---|---|---|
| FB-F-300-JL | Big Sky Aluminum Mid Front Bumper | Confirmed compatible |
| FB-S-300-JL | Big Sky Aluminum Stubby Front Bumper | Confirmed compatible |
| FB-F-310-JL | Steel Mid Front Bumper | NOT compatible — different bumper series |
| FB-S-310-JL | Steel Stubby Front Bumper | NOT compatible — different bumper series |
| Factory JL/JT bumper | OEM | NOT compatible |
Verified Fitment — 2018–2026 Jeep Wrangler JL (via FB-F-300-JL or FB-S-300-JL)
| Trim | Years | Status |
|---|---|---|
| JL Sport / Sport S / Rubicon / Sahara | 2018–2025 | ✓ |
| JL Unlimited Sport / Sport S / Rubicon / Sahara | 2018–2025 | ✓ |
| JL Unlimited Moab | 2018–2019 | ✓ |
| JL Unlimited Rubicon 4xe / Sahara 4xe / High Altitude 4xe / Willys | 2021–2025 | ✓ |
| JL Unlimited Rubicon 392 / Willys Sport | 2021–2024 | ✓ |
| JL Unlimited 80th Anniversary / Freedom / Islander | 2021 | ✓ |
| JL Unlimited Sahara Altitude / Sport Altitude / High Altitude | 2021–2023 | ✓ |
| JL Unlimited High Tide | 2022–2023 | ✓ |
| JL Unlimited Willys 4xe | 2023–2025 | ✓ |
| JL Unlimited Rubicon X / Rubicon X 4xe / Rubicon 392 Final Edition / Sport S 4xe / Rubicon X | 2024–2025 | ✓ |
| 2026 JL trims | 2026 | ⚠️ Confirm with Rock Slide Engineering before ordering |
Verified Fitment — 2020–2026 Jeep Gladiator JT (via FB-F-300-JL or FB-S-300-JL)
| Trim | Years | Status |
|---|---|---|
| Gladiator Sport / Sport S / Rubicon / Mojave | 2020–2025 | ✓ |
| Gladiator Overland | 2020–2023 | ✓ |
| 2025–2026 additional JT trims | 2025–2026 | ⚠️ Verify before ordering |
| Jeep Wrangler JK | 2007–2018 | ✗ Does not fit |
Critical Compatibility
| Configuration | Notes |
|---|---|
| Rock Slide Engineering FB-F-300-JL or FB-S-300-JL | Required — this kit only fits these two 300 Series aluminum bumpers |
| Rock Slide Engineering steel bumpers (FB-F-310-JL, FB-S-310-JL) | NOT compatible — different bumper series |
| Factory JL/JT bumpers | NOT compatible |
| Non-Rock Slide aftermarket bumpers | NOT compatible |
| Builds planning to add a winch later | This kit is removable — install it now for a clean look and remove it when the winch arrives |
Common Questions
What does this kit actually do?
The Rock Slide Engineering 300 Series aluminum front bumpers (FB-F-300-JL and FB-S-300-JL) include an integrated winch plate and winch opening designed for a winch. If you are not running a winch, the opening is exposed. The FB-300-WDP is an aluminum cover plate that fills that opening cleanly — same powder-coat finish as the bumper, bolt-on install, no gaps.
Can I remove it later if I add a winch?
Yes. The delete kit is designed to be removed when a winch is installed. No modification to the bumper is required for removal or reinstallation.
Does this fit the steel Appalachian bumpers (FB-F-310-JL, FB-S-310-JL)?
No. This kit is specifically designed for the 300 Series aluminum bumpers (FB-F-300-JL and FB-S-300-JL). The steel Appalachian bumpers use a different winch opening geometry and this kit will not fit them.
Is there a weight discrepancy I should know about?
Yes — your source data lists 15 lbs, but authorized distributors list approximately 5 lbs for what is described as a lightweight aluminum cover plate. The 15-lb figure may be shipping weight including packaging. Verify actual product weight with Rock Slide Engineering before ordering if this is relevant to your build.
The Obsidian Take
The FB-300-WDP is for the JL or JT owner running a Rock Slide Engineering FB-F-300-JL or FB-S-300-JL aluminum front bumper without a winch — and who wants the winch opening filled cleanly instead of left exposed. Aluminum, powder-coated to match, bolt-on, removable when a winch is eventually added.
One check before ordering: confirm you are running either the FB-F-300-JL or FB-S-300-JL. This kit has no function on any other bumper.
⚠️ 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: Products that have been installed or modified are non-returnable. Verify bumper compatibility before ordering.
Manufacturer Data Disclaimer: Specifications sourced from Rock Slide Engineering manufacturer documentation. Obsidian Forged Auto Supply is an authorized Rock Slide Engineering dealer. Verify compatibility with your specific bumper before ordering. Manufacturer specifications are subject to change without notice.