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

Secure Access. These Running Boards are designed to improve cabin access while adding side protection and refined styling for 2020-2026 Sierra 3500 HD regular cab models. By providing a wide, stable step surface, they help make entry and exit easier while also shielding the lower body from everyday road hazards.

Construction and Appearance. Featuring a polished chrome finish, these running boards deliver a bright, professional appearance that complements the vehicle’s exterior. Matte black finish step pads provide added grip for confident footing, while the matching matte black mounting brackets create a cohesive, durable setup. The wide and flat 6-inch stepping area is engineered for comfort and stability, and the overall construction supports a weight capacity of up to 350 pounds, ensuring dependable performance under regular use.

Installation. Designed as a direct replacement, installation requires no drilling and utilizes factory mounting points for a clean, secure fit. The included mounting bracket sets, bolts, and washers support a straightforward bolt-on process using basic hand tools. This adaptable design helps reduce installation time while ensuring proper alignment and long-term durability once installed.

Application. These Running Boards fit 2020-2026 Sierra 3500 HD regular cab models. By combining easy access, added side protection, and a polished, functional design, they enhance daily usability, improve safety when entering or exiting the cab, and contribute to a more finished, confident vehicle appearance.

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