6-Inch Wide Flat Running Boards; Black (20-26 Sierra 3500 HD Regular Cab)Find parts that fit my vehicle

Durable Side Step Protection. These Running Boards are designed to offer practical stepping support and side protection for 2020–2026 GMC Sierra 3500 HD Regular Cab models. With a rugged build and wide surface, they provide a sturdy step up while shielding the vehicle’s sides from common road damage such as debris and low impacts. Whether for daily use or worksite access, they enhance both function and appearance.

Construction and Appearance. Finished in a textured black coating, these running boards feature a wide, flat 6-inch stepping area that delivers slip-resistant support and a modern, aggressive look. Built for strength and durability, they can support up to 450 pounds, making them ideal for heavy-duty trucks and regular use. The included brackets are vehicle-specific to ensure proper alignment and structural security.

Installation. These running boards install easily with the provided vehicle-specific mounting brackets and hardware. No drilling or permanent modification is required, making the process quick and adaptable even for DIY installers. The direct replacement design ensures a factory-like fit and secure mount.

Application. These Running Boards fit 2020–2026 GMC Sierra 3500 HD Regular Cab models. They enhance your vehicle’s accessibility and protection while delivering a clean, functional upgrade that suits both work and everyday driving environments.

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