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RCI Offroad Rock Sliders - 4 Door | Ford Bronco (2021+)
$925.00 - $1,225.00
- Frame-mounted protection for the rocker panels and lower door area of 2021+ four-door Ford Bronco models.
- Choose a 5-degree angle for a flatter step surface or a 20-degree angle for maximum ground clearance.
- Built with a 2-inch square main rail, 1.75-inch DOM outer rail, full-length 3/16-inch frame plates, and five mounting legs per side.
- Optional dimpled top tread plates improve footing and help shield the rocker panels from rocks and debris.
- Direct bolt-on installation uses existing mounting locations with no drilling or welding required.
RCI Rock Sliders for the Four-Door Ford Bronco
The rocker panels and lower door area are among the most exposed and expensive-to-repair sections of a Bronco on the trail. RCI Offroad Rock Sliders create a frame-mounted barrier that helps the vehicle slide over rocks and obstacles instead of transferring the impact into the body.
RCI uses a full-length 3/16-inch frame plate and five-leg mounting design on each side to distribute impacts into the Bronco's frame. A 2-inch square main rail, 1.75-inch DOM outer rail, 1/4-inch gussets, mitered steel end caps, and RCI's low-profile rear kick-out provide full-length protection without unnecessary bulk. The sliders are designed to support the side of the vehicle when sliding over obstacles or when an appropriate recovery situation requires lifting from the slider.
Fitment and Compatibility
| Vehicle | Full-size Ford Bronco |
|---|---|
| Model years | 2021–present |
| Body style | Four-door only |
| Drivetrain | Four-wheel-drive models |
| Bronco Sport | Not compatible |
| Mounting | Existing frame mounting locations |
Shopping for a two-door Bronco? See the RCI Offroad Rock Sliders for the two-door Ford Bronco.
Choose Your Slider Configuration
| Option | Best for | Step surface | Ground clearance |
|---|---|---|---|
| 5-degree angle | Daily driving, passengers, pets, and mixed trail use | Flatter and easier to use as a step | More clearance than factory steps, but less than the 20-degree configuration |
| 20-degree angle | Technical trails and maximum body clearance | More angled and less convenient as a step | Maximum clearance and a lower-profile appearance |
Optional bolt-on top tread plates add a dimpled, high-grip stepping surface. They can make entry and exit easier while also helping block rocks and debris thrown toward the rocker panels. For the flattest practical step surface, RCI recommends pairing the tread plates with the 5-degree configuration.
Choose bare steel if you plan to apply a custom finish. Bare-steel sliders must be properly finished before installation to help prevent corrosion. The black textured powder-coated option includes an epoxy-primer base for added finish durability.
Key Features
- Frame-mounted design disperses impacts into the frame rather than the Bronco's sheet metal.
- Full-length 3/16-inch frame plates with five mounting legs per side.
- Heavy-duty 1/4-inch gussets reinforce all five legs.
- 2-inch square main rails provide a strong structural foundation.
- 1.75-inch DOM outer rails balance strength, protection, and step functionality.
- Mitered, laser-cut, and bent 3/16-inch steel end caps.
- RCI low-profile rear kick-out helps guide the vehicle around obstacles.
- Available with optional bolt-on top tread plates.
- Made in the USA.
Specifications
| Material | Steel |
|---|---|
| Main rail | 2-inch square steel tube |
| Outer rail | 1.75-inch DOM steel tube |
| Frame plates | Full-length 3/16-inch steel |
| Gussets | 1/4-inch steel |
| Slider angles | 5 degrees or 20 degrees |
| Finish options | Bare steel or black textured powder coat over epoxy primer |
| Tread plates | Optional bolt-on dimpled plates |
| Country of manufacture | USA |
| Base manufacturer SKU | BRONCO-SLIDER |
What Is Included?
- Driver-side and passenger-side RCI rock sliders.
- Selected 5-degree or 20-degree configuration.
- Optional top tread plates when selected.
- Required mounting hardware.
Installation
| Installation type | Direct bolt-on |
|---|---|
| Drilling required | No |
| Welding required | No |
| Tools | Basic hand tools |
| Instructions | RCI four-door Bronco rock-slider installation guide |
The sliders mount to existing locations on the Bronco's frame. Because the assemblies are heavy, having a second person or a suitable support available can make positioning safer and easier. Review the manufacturer's instructions before beginning installation.
Frequently Asked Questions
Do these rock sliders fit a two-door Ford Bronco?
No. This version is designed for four-door models. Choose the RCI two-door Bronco rock sliders for a two-door vehicle.
What is the difference between the 5-degree and 20-degree options?
The 5-degree option provides a flatter surface that is easier to use as a step. The 20-degree option angles upward for a lower-profile appearance and maximum ground clearance.
Should I add the top tread plates?
Add the tread plates if step traction, passenger access, or added protection from tire-thrown rocks and debris is important. RCI recommends the 5-degree angle when the tread plates will be used regularly as a step.
Can these sliders support the Bronco's weight?
RCI states that the frame-mounted sliders are designed to support the side of the vehicle for sliding over obstacles or lifting with an appropriate off-road jack. Always follow the vehicle, jack, and slider manufacturers' safety instructions and use proper support equipment.
Is drilling or welding required?
No. The sliders bolt to existing mounting locations and include the required installation hardware.
Can bare-steel sliders be installed as delivered?
Bare steel should receive a suitable protective finish before installation to help prevent rust and corrosion. Select the powder-coated version if you prefer a finished, installation-ready surface.
Complete Your Bronco Protection
Compare additional options in our Ford Bronco rock sliders collection, or pair the sliders with compatible Ford Bronco skid plates for more complete underbody protection.
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