Heavy-duty trucks sit tall. Running boards, nerf bars and side steps make it easier to climb into your Sierra 2500 HD and protect the rocker panels.
- Cab style sets the length: Regular, Double and Crew Cab trucks each take their own size.
- Year matters because mounting points change between body styles.
- Lifted trucks do best with drop steps or wheel-to-wheel boards.
Select your truck in the vehicle bar above to see only steps that fit.


TrailFX
TrailFX A1547B 4-Inch Oval Straight Nerf Bar Step Bars with Step Pads
Sale price$320.99
In Stock
★ Mission Ready


TrailFX
TrailFX A1547S 4-Inch Oval Straight Nerf Bars with Step Pads
Sale price$419.99
In Stock
★ Mission Ready


TrailFX
TrailFX A1548B 4-Inch Oval Straight Nerf Bars with Surface Steps
Sale price$320.99
In Stock
★ Mission Ready


TrailFX
TrailFX A1548S 4-Inch Oval Stainless Steel Nerf Bars with Surface Steps
Sale price$419.99
In Stock
★ Mission Ready


TrailFX
TrailFX A1551B 4-Inch Oval Straight Nerf Bars with Surface Steps, Black Powder-Coated Steel
Sale price$255.99
In Stock
★ Mission Ready


TrailFX
TrailFX A1551S 4-Inch Oval Polished Stainless Steel Nerf Bars with Surface Steps
Sale price$390.99
In Stock
★ Mission Ready


TrailFX
TrailFX A4001B 4-Inch Trapezoid Straight Nerf Bars with Step Pads, Black Titanium Powder Coat
Sale price$364.99
In Stock
★ Mission Ready


TrailFX
TrailFX A4001S 4-Inch Polished Stainless Steel Trapezoid Straight Nerf Bars with Step Pads
Sale price$474.99
In Stock
★ Mission Ready


TrailFX
TrailFX A4002B 4-Inch Trapezoid Straight Nerf Bars with Step Pads, Black Titanium Powder Coat
Sale price$364.99
In Stock
★ Mission Ready


TrailFX
TrailFX A4002S 4-Inch Polished Stainless Steel Trapezoid Straight Nerf Bars with Step Pads
Sale price$474.99
In Stock
★ Mission Ready


TrailFX
TrailFX A4017S 4-Inch Trapezoidal Straight Nerf Bars with Step Pads
Sale price$474.99
In Stock
★ Mission Ready


TrailFX
TrailFX A4018B Trapezoidal Straight Nerf Bars with Surface Steps, Black Powder-Coated Steel
Sale price$364.99
In Stock
★ Mission Ready


TrailFX
TrailFX A4018S 4-Inch Polished Stainless Steel Trapezoidal Nerf Bars with Step Pads
Sale price$474.99
In Stock
★ Mission Ready


TrailFX
TrailFX A7036B 5-Inch Oval Straight Black Powder-Coated Steel Rocker Panel Step Bars
Sale price$294.99
In Stock
★ Mission Ready


TrailFX
TrailFX A7036S 5-Inch Oval Straight Stainless Steel Rocker Panel Mount Step Bars
Sale price$438.99
In Stock
★ Mission Ready


TrailFX
TrailFX A7037B 5-Inch Oval Straight Black Powder-Coated Steel Nerf Bars
Sale price$409.99
In Stock
★ Mission Ready


TrailFX
TrailFX A7037S 5-Inch Oval Straight Stainless Steel Nerf Bars with Step Pads
Sale price$552.99
In Stock
★ Mission Ready


TrailFX
TrailFX A7038B 5-Inch Oval Straight Black Powder-Coated Steel Nerf Bars with Step Pads
Sale price$409.99
In Stock
★ Mission Ready


TrailFX
TrailFX A7038S 5-Inch Oval Straight Stainless Steel Nerf Bars with Step Pads
Sale price$591.99
In Stock
★ Mission Ready


TrailFX
TrailFX A7039S 5-Inch Oval Bent Stainless Steel Nerf Bars with Bed Steps
Sale price$829.99
In Stock
★ Mission Ready


TrailFX
TrailFX A7044B 5-Inch Oval Bent Nerf Bars with Bed Steps, Black Powder-Coated Steel
Sale price$682.99
In Stock
★ Mission Ready


TrailFX
TrailFX A7063B 5-Inch Oval Bent Black Powder-Coated Steel Nerf Bars with Step Pads
Sale price$449.99
In Stock
★ Mission Ready


TrailFX
TrailFX A7063S 5-Inch Oval Bent Polished Stainless Steel Rocker Panel Step Bars
Sale price$626.99
In Stock
★ Mission Ready
GMC Sierra 2500 HD fitment tips
- Beds are 6 ft 9 in (standard) or 8 ft 2 in (long). Match covers, toolboxes and transfer tanks to yours.
- The 2024 refresh changed the front fascia, so many bumpers and grille guards are split into 2020–2023 and 2024+.
- Factory-lifted trims like the AT4X don't need leveling kits and may not accept standard lift kits.
- The MultiPro tailgate can affect tailgate seals and some bed covers.
- Not sure about your trim, cab or bed length? Use the vehicle selector at the top of the page, or contact us with your VIN and we'll confirm fitment before you order.
More GMC Sierra 2500 HD parts
Running boards & side steps · Lift & leveling kits · Shocks · Floor liners · Tonneau covers · Bed liners & bed mats · Toolboxes



