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Level up your truck's functionality and style with the Rough Country HD2 Running Boards. Crafted with precision and designed for those who demand the best, our HD2 running board is engineered to be your step for a lifetime of adventures. Corrosion-Resistant Aluminum: Imagine stepping into your truck on a platform built for battle. That's the HD2 experience. The HD2 combines the strength of 100% aluminum with a black powder coat finish, ensuring it's lightweight, corrosion-resistant, and rust-free. Rock-Solid Protection: We know the road can be tough! That's why our HD2 running board has durable composite endcaps. No more worrying about flying rocks and debris, these endcaps are made to handle the rough stuff and still look good. Spacious Stepping: Got big boots? No sweat! The HD2 boasts a generous 5" wide footing area. Now you can get in and out with ease, no matter how muddy or dusty your adventures get. And with a non-slip surface, you'll stay steady on your feet, rain or shine. Style Meets Function: We know looks matter. That's why our running board isn't just durable - it's made with a sleek, stylish design that blends flawlessly with your truck, providing a smooth cover for any exposed frame. Easy Installation: No need to spend hours in the garage. Our running board is designed for easy, drill-free installation so that you can hit the road in no time. Plus, it's compatible with most truck models, making it a hassle-free upgrade. With hassle-free installation and design that's as rugged as it is stylish, your truck will turn heads and tackle trails like never before.
Hassle-Free Bolt-On Install: No drilling required for a quick and easy setup.
Enhanced Accessibility: Provides easier entry and exit from your truck.
Cab-Length Coverage: Sleek design extends the full length of your cab.
Durable One-Piece Aluminum Build: Strong, lightweight, and corrosion-resistant.
Extra Protection: Shields your vehicle from road debris and rock chips.
Sleek Frame Coverage: Helps conceal exposed frame components for a cleaner look.
Body Lift Compatible: Works seamlessly with or without a body lift.
Limited Lifetime Warranty: Backed by Rough Country's lifetime warranty against material and workmanship failures - including welds, brackets, and structural components - for the original purchaser. The finish is covered by a 1-year warranty.
ONLY fits crew cab models. Does NOT fit 2019 "Classic" models. (2018 body style)
Fitment Year: 2019 2020 2021 2022 2023 2024 2025 2026
Make: GMC
Model: Sierra 2500 HD
Submodel: AT4
Drive: 4WD
Install Time: 3-4 hours
Manufacturer SKU: SRB01900B
Legacy SKU: SRB01900
Most products ship directly from our vendor warehouses or distributor network. Shipping times can vary depending on the brand, product size, availability, and destination.
Large or oversized items such as lift kits, wheels, tires, bumpers, exhaust systems, and audio enclosures may require additional handling time or freight shipping.
If there is ever an issue with availability, shipping cost, or delivery timing, we will contact you before moving forward with the order.
Returns may be accepted on most new, unused, unopened items within 30 days of delivery. Items must be in original packaging and in resellable condition.
Installed, used, damaged, missing-parts, electrical, special-order, clearance, or custom-built items may not be eligible for return.
Return shipping is normally the customer’s responsibility unless the return is due to our mistake, such as the wrong item being shipped.
Before sending anything back, please contact Kaos Offroad so we can review the order and provide return instructions. Returns sent without approval may be refused.
Some products are vehicle-specific. Please verify fitment before ordering. If you are unsure, contact us with your year, make, model, sub-model, and any relevant details before purchasing.
Original shipping charges, freight charges, and vendor restocking fees may be non-refundable depending on the item and supplier policy.






