2015-2019 GMC Sierra 3500HD Running Boards & Nerf Bars

Shop running boards and nerf bars for 2015, 2016, 2017, 2018, and 2019 GMC Sierra 3500HD trucks. People Auto Parts carries aftermarket side steps for compatible Sierra 3500HD cab styles, including black, stainless, 5-inch, 6-inch, wide step, and drop step styles.

Fitment is important when choosing GMC Sierra 3500HD running boards. A set made for one cab style or truck configuration may not fit another, and product length, brackets, and mounting points can vary by model year, cab style, and single or dual rear wheel setup. Before ordering, confirm your truck year, cab style, and the fitment notes on each product page.

Choose 5-inch running boards for a clean side-step profile, 6-inch boards for a wider stepping surface, or drop step nerf bars for a lower step pad and a more rugged look. All products in this collection are aftermarket parts and are not OEM or OE GMC parts. GMC and Sierra names are used only to identify vehicle compatibility.

Related GMC Sierra 3500HD Running Board Collections

Need more upgrades for this truck? View all 2015-2019 GMC Sierra 3500HD parts and accessories.

2015-2019 GMC Sierra 3500HD Running Boards FAQ

Will these running boards fit my 2015-2019 GMC Sierra 3500HD?

Fitment depends on your model year, cab style, single or dual rear wheel setup, and product configuration. Check the product title and fitment notes before ordering.

Do Crew Cab, Double Cab, and Regular Cab running boards fit the same?

No. Sierra 3500HD cab styles require different running board lengths, brackets, and mounting points.

Are running boards and nerf bars the same?

They perform a similar function but come in different styles. Running boards generally provide a wider stepping surface, while nerf bars are commonly available in round, oval, or drop-step designs.