Weathertech
WeatherTech Cargo Liner w/ Bumper Protector | 2018-2026 Jeep Wrangler JL Unlimited 4-Door w/Subwoofer
WeatherTech Cargo Liner w/ Bumper Protector | 2018-2026 Jeep Wrangler JL Unlimited 4-Door w/Subwoofer
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WeatherTech Cargo Liner with Bumper Protector for 2018-2026 Jeep Wrangler JL Unlimited 4-Door with Factory Subwoofer
Bottom Line Up Front: The WeatherTech 401188SK Cargo Liner with Bumper Protector delivers premium cargo-area protection for 2018-2026 Jeep Wrangler JL Unlimited 4-Door models equipped with the factory cargo-area subwoofer and without the fold-flat load floor system. Precision laser-measured for an exact fit, it helps protect factory carpeting, interior trim, and painted bumper surfaces from mud, snow, water, pet hair, tools, recovery gear, camping equipment, and daily cargo use.
Because: WeatherTech utilizes advanced digital laser scanning technology and proprietary thermoplastic elastomer (TPE) material to create vehicle-specific cargo liners with raised containment walls and a skid-resistant surface. The integrated bumper protector adds an additional layer of protection during loading and unloading operations, helping preserve vehicle value and appearance.
"Vehicle-specific cargo protection systems consistently outperform universal cargo mats in coverage, containment, and long-term durability." — Automotive interior protection engineers and aftermarket accessory specialists.
The WeatherTech 401188SK is specifically engineered for Jeep Wrangler JL Unlimited owners who require maximum cargo protection while maintaining compatibility with the factory rear cargo subwoofer configuration. Unlike universal cargo mats that leave exposed carpet areas and fail to accommodate factory interior contours, this custom-molded liner follows the exact dimensions of the Wrangler JL cargo area.
Whether you're transporting overlanding equipment, camping gear, recovery tools, pet crates, sports equipment, hunting supplies, groceries, luggage, or work materials, the WeatherTech Cargo Liner creates a durable protective barrier between your cargo and factory surfaces.
The laser-measured design provides edge-to-edge coverage while accommodating the OEM subwoofer enclosure. This ensures proper fitment and superior protection without interfering with factory interior components.
One of the standout features of the 401188SK is the integrated Bumper Protector. During loading and unloading, the fold-out protector extends over the painted rear bumper surface to help prevent scratches, abrasions, and scuffs caused by toolboxes, coolers, cargo cases, pet carriers, and outdoor equipment. Once loading is complete, the protector folds neatly into the cargo area.
WeatherTech's proprietary TPE material remains flexible in extreme cold while resisting cracking, curling, and deformation during hot weather. This makes it particularly effective for year-round use in harsh climates where vehicles regularly encounter snow, slush, mud, road salt, and wet equipment.
The raised containment walls help capture water, dirt, sand, snow, pet hair, grease, and liquid spills before they can migrate onto factory carpeting. Combined with the textured anti-slip surface, the liner also helps reduce cargo movement during vehicle operation.
For Wrangler JL Unlimited owners seeking professional-grade cargo protection that accommodates the factory subwoofer system while delivering superior containment and durability, the WeatherTech 401188SK remains one of the most trusted cargo liner solutions available.
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | WeatherTech |
| Part Number | 401188SK |
| Product Type | Cargo Liner with Bumper Protector |
| Color | Black |
| Vehicle Platform | Jeep Wrangler JL Unlimited (4-Door) |
| Model Years | 2018-2026 |
| Subwoofer Compatibility | Requires Factory Rear Cargo Subwoofer |
| Load Floor Configuration | Without Fold-Flat Load Floor / Storage System |
| Material | Proprietary Thermoplastic Elastomer (TPE) |
| Fitment Type | Laser-Measured Vehicle Specific Design |
| Containment Design | Raised Perimeter Walls |
| Bumper Protection | Integrated Fold-Out Bumper Protector |
| Surface Finish | Textured Anti-Slip Surface |
| Country of Manufacture | USA |
Vehicle Fitment
- Jeep Wrangler JL Unlimited Sport 4-Door — 2018-2026
- Jeep Wrangler JL Unlimited Sport S 4-Door — 2018-2026
- Jeep Wrangler JL Unlimited Willys 4-Door — 2018-2026
- Jeep Wrangler JL Unlimited Sahara 4-Door — 2018-2026
- Jeep Wrangler JL Unlimited Rubicon 4-Door — 2018-2026
- Jeep Wrangler JL Unlimited High Altitude 4-Door — 2020-2026
- Requires Factory Rear Cargo Subwoofer
- Requires Standard Cargo Floor Configuration
- Excludes Fold-Flat Load Floor / Fold-Flat Storage System
- Not Compatible with Jeep Wrangler JL 2-Door Models
- Not Compatible with Wrangler Unlimited Models Equipped with Fold-Flat Load Floor Storage
Installation Notes
- Drop-in installation requires no drilling, trimming, or permanent modifications.
- Verify vehicle is equipped with the factory rear cargo subwoofer before ordering.
- Verify vehicle does not have the fold-flat cargo floor/storage option.
- Bumper protector should be extended during loading and retracted during normal operation.
- Remove periodically for cleaning and inspection.
- Wash using mild soap and water for best long-term appearance.
Frequently Asked Questions
Will this fit a Wrangler JL Unlimited with the fold-flat cargo floor?
No. Part number 401188SK is designed specifically for vehicles without the fold-flat cargo floor/storage system.
Does this require the factory rear cargo subwoofer?
Yes. This cargo liner is engineered specifically for Wrangler JL Unlimited models equipped with the OEM rear cargo subwoofer.
What does the bumper protector do?
The integrated bumper protector helps prevent scratches and paint damage when loading or unloading cargo, coolers, pet carriers, and outdoor equipment.
Can it contain snow, mud, and liquid spills?
Yes. Raised containment walls help trap moisture, dirt, mud, and spills before they reach factory carpeting.
Is the material suitable for winter temperatures?
Yes. WeatherTech's proprietary TPE material remains flexible and durable in extreme hot and cold conditions.
SKU: 401188SK
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