2025 GMC Sierra 3500 HD Bodies and Fender Parts

Keep Your 2025 GMC Sierra 3500 HD in Top Shape with Quality Bodies and Fender Parts

Whether you’re repairing or upgrading your Bodies and Fender Part, using high-quality parts is key to keeping your 2025 GMC Sierra 3500 HD looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Side Bars and Sideskirts, Step Nerf Bar Mount Kits, and Running Boards and Steps. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Competitive Prices and Extensive Inventory

The average price for a 2025 GMC Sierra 3500 HD Bodies and Fender Part at Advance Auto Parts is around $516.08, with a range that starts at $185.99 and goes up to $987.99. With 23 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Running Board Mount Kit, PRO TRAXX 5 Oval Nerf Step Bars, and PRO TRAXX 5 Oval Nerf Step Bars start at just $189.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Bodies and Fender Part, don’t forget to check out other key components like Trunk and Tailgate Parts and Vehicle Hoods. At Advance Auto Parts, we’re here to help you keep your 2025 GMC Sierra 3500 HD in peak condition, inside and out.

Essential 2025 GMC Sierra 3500 HD Bodies and Fender Parts

Lund – 5In Oval Straight Ss (Part No.23910562)

5In Oval Straight Ss

from

$539.99
5In Oval Straight Ss

TrailFX – With Step Pads, 5"Oval Bent, Powder Coated, Black, Steel, Rocker Panel Mount (Part No.A7086B)

With Step Pads, 5"Oval Bent, Powder Coated, Black, Steel, Rocker Panel Mount

from

$499.99
TrailFX Step Bars maximize style and safety when entering and exiting your vehicle. Available in various sizes, shapes, and finishes, TrailFX steps offer a solution for every need. Each pair installs seamlessly against the vehicle contours for a sleek and stylish look. With TrailFX step products, a custom look does not have to break the bank.

Product Features:
  • Rocker Panel Mount
  • Q235A Steel Finished With A Black Powder Coat Ensures Maximum Strength And Durability: Extra-Large Molded Step Pads Provide Slip-Resistant Entry And Exit Points To The Cab
  • Welded End Caps Add A Clean, Finished Appearance While Keeping The Elements Out: Steel Mounting Brackets Are Included To Install Steps With Ease
  • Oval Step Shape Offers A Wider Stepping Area For Secure Footing: 60 Degree Bent Ends Tuck Into The Vehicle Body Which Offer A Smooth, Seamless Look
  • Provides Moderate Protection Against Road Hazards And Debris
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ARIES – 4 Inch Oval Side Bars (Part No.S224009-2)

4 Inch Oval Side Bars

from

$311.99
When you start and end your day turning the ignition of your truck, unreliable footing just is not an option. You need a step that can bear weight with ease, provide comfortable footing and look good doing it. ARIES 4″ oval side bars are sleek, strong and custom-fitted to be a highly functional extension of your truck. ARIES 4″ oval side bars are made with strong 4″ elliptical tubing and are available in two different finish options to allow you full customization: polished stainless steel and black powder coat carbon steel. This set of side bars is constructed from 304 stainless steel, meaning high nickel content to be truly stainless. They easily resist rust and corrosion and feature a highly polished finish that is made to last. Something that sets the ARIES 4″ oval side bar apart from all others is its blended end caps and OE-style bends. Rather than capping our side bars with a plastic cap, we offer a blended end cap for a smooth, finished appearance. We also equip the ends with a special 20-degree bend and original equipment styling to perfectly contour to your vehicle. ARIES 4″ oval side bars are fitted with raised step pads to provide a wide stepping surface. The polypropylene construction will not crack over time, and because it has a textured grip, the surface is highly resistant to slips and skids, even when wet. To add an extra element of class to our oval sides, we also fit each one with a stainless steel insignia bearing the ARIES name. Installation of ARIES 4″ oval side bars is quick and easy with custom-fitted mounting brackets and no drilling necessary. These nerf bars fit select model years of the Chevrolet Silverado and GMC Sierra 1500, 2500 HD, 2500 HD Classic, 3500 HD and 3500 Classic (see application info to verify fitment).

Product Features:
  • 20-degree bends to contour to the body of the vehicle
  • Seamless, welded end caps for a superior, finished look
  • Raised, custom, non-skid step pads for safe, comfortable entry and exit
  • 304 stainless steel construction to be strong and truly rust-resistant
  • Mirror-like polished stainless steel finish for a bright, clean accent
  • Brushed stainless steel ARIES insignia on each step
  • Elliptical, 4″ wide, heavy-wall tube design
  • No-drill, vehicle-specific application for a custom fit
  • Heavy-duty steel mounting brackets for a solid step
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Westin – R7 Nerf Step Bars (Part No.28-71275)

R7 Nerf Step Bars

from

$752.99
Westin R7 Boards feature oversized step pads and OE style traction grooves. R7 Boards are sold in complete kits that include: Driver and passenger-side boards vehicle specific mount kit and come with injection molded bracket covers for an extra clean look.

Product Features:
  • Mount Kit Included
  • OE Style
  • Recessed Board Design Conceals Brackets
  • Includes Molded Bracket Covers
See More

TrailFX – With Step Pads, 3"Round Bent, Polished, Ss, Without End Caps, Rocker Panel Mount (Part No.A0034S)

With Step Pads, 3"Round Bent, Polished, Ss, Without End Caps, Rocker Panel Mount

from

$389.99
TrailFX Step Bars maximize style and safety when entering and exiting your vehicle. Available in various sizes, shapes, and finishes, TrailFX steps offer a solution for every need. Each pair installs seamlessly against the vehicle contours for a sleek and stylish look. With TrailFX step products, a custom look does not have to break the bank.

Product Features:
  • Rocker Panel Mount
  • T304 Marine-Grade Stainless Steel Ensures Maximum Strength And Durability
  • Extra-Large Molded Step Pads Provide Slip-Resistant Entry And Exit Points To The Cab
  • Provides Moderate Protection Against Road Hazards And Debris
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Lund – 5 In Oval Curved Steel (Part No.23851007)

5 In Oval Curved Steel

from

$253.99
Take a step up with a set of LUND’s 5 inch Oval Bent Nerf Bars. These oval nerf bars are designed to custom fit your vehicle, complementing the overall look while providing you with safe, sure footing in and out of your vehicle – no matter your shoe type. In fact, each bar has a recessed step area with UV-resistant rubber grip pads providing solid traction and stability. LUND’s 5 inch Oval Bent Nerf Bars feature chrome-plated or all black matte finishes and are designed with a tubular shape and curved style, creating a rugged yet contemporary look and feel. Designed and engineered to go the distance. LUND’s 5 inch Oval Bent Nerf Bars are constructed with a cutting-edge polymer material set within a lightweight, durable aluminum frame, making these bars tough as metal and virtually corrosion-free. These bars, available in 80 inch and 87 inch lengths, also offers a broad stepping area designed larger than traditional step bars. Easy bolt-on installation. The nerf bars come pre-assembled and include custom mounting hardware for a direct, no-drill install. The mounting brackets, included with your order, are made to custom fit your specific truck or SUV’s make and model, and once they’re on, will provide your vehicle with added safety and convenience for years to come.

Product Features:
  • UV Resistant Polymer Pad
  • Recessed Aluminum Frame
  • Accents The Line Of Your Vehicle
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Westin – PRO TRAXX 5 Oval Nerf Step Bars (Part No.21-53710)

PRO TRAXX 5 Oval Nerf Step Bars

from

$623.99
Westins Pro Traxx 5 Oval Nerf Step Bars feature a 5″ oval tube with a heavy-duty step pad that provides a wider and more secure step area. They feature 30° factory style bends that have seamless domed ends so there are no end-caps or exposed bolt heads. Applications are bolt-on installation.

Product Features:
  • 30 Degree Factory Style Bends At Each End Of Tube
  • Fully Welded Domed Ends
  • Injection Molded Polymer Step Pad
  • Injection Molded Bracket Covers Incl. On Some Apps
  • 5 in. Wide Step Area With Westin Logo
  • Bolt On Installation
  • No Drilling Required On Most Apps
See More

Westin – Premier 4 Oval Nerf Step Bars (Part No.22-5030)

Premier 4 Oval Nerf Step Bars

from

$508.99
Saddle mounted step pad. Molded oval end caps. Features cradle mounted tubes and no drill installation. Black powder coated mild steel finish.

Product Features:
  • Vehicle Specific Mounting Kit Required; Sold Separately
  • 4 in. Oval Tube
  • Injection Molded Polymer Step Pad
  • Molded Oval End Caps
  • Bolt-On Installation; No Drilling Required
  • Limited Lifetime Warranty
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Westin – HDX Stainless Drop Nerf Step Bars (Part No.56-137152)

HDX Stainless Drop Nerf Step Bars

from

$775.99
Westin’s HDX Stainless Drop Nerf Step Bars are built with corrosion-resistant, textured black painted stainless steel designed to last under the toughest of conditions. With 1-piece construction, these nerf step bars provide over 2 added inches of toe/heel step area than our competitors and fit tight to the vehicle’s rocker panel for a solid fit and rugged look. HDX Stainless Drop Nerf Step Bars include stainless steel step pads. Step plates are rust resistant and provide maximum traction. Bolt-on installation with no drilling is required. Includes mount kit.

Product Features:
  • Corrosion Resistant Black Powder-Coated Stainless Steel
  • Die Stamped Stainless Steel Step Areas For Maximum Traction
  • Over 2 More Inches Of Toe/Heel Step Area Than Our Competitors
  • Features A Notched Bar Design With Heavy-Duty Step Plate
  • Includes Rust Resistant Stainless Steel Step Plates
  • Removable Step Plates For Easy Cleaning
  • Fits Tight To Rocker Panel
  • Solid 1-Piece Construction
  • Bolt-On Installation No Drilling Required For Most Applications
  • Mount Kit Included
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TrailFX – 5"Oval Straight, Powder Coated, Black, Steel, With Step Pads, Rocker Panel Mount (Part No.A7037B)

5"Oval Straight, Powder Coated, Black, Steel, With Step Pads, Rocker Panel Mount

from

$441.99
TrailFX Step Bars maximize style and safety when entering and exiting your vehicle. Available in various sizes, shapes, and finishes, TrailFX steps offer a solution for every need. Each pair installs seamlessly against the vehicle contours for a sleek and stylish look. With TrailFX step products, a custom look does not have to break the bank.

Product Features:
  • Rocker Panel Mount
  • Q235A Steel Finished With A Black Powder Coat Ensures Maximum Strength And Durability: Extra-Large Molded Step Pads Provide Slip-Resistant Entry Points To The Cab
  • Welded End Caps Add A Clean, Finished Appearance While Keeping The Elements Out: Steel Mounting Brackets Are Included To Install Steps With Ease
  • Provides Moderate Protection Against Road Hazards And Debris
See More

TrailFX – Step Nerf Bar: Square Straight, Powder Coated, Matte Black, Steel, Finished End Caps (Part No.DHS024B)

Step Nerf Bar: Square Straight, Powder Coated, Matte Black, Steel, Finished End Caps

from

$538.99
TrailFX Drop Down Steps are a unique addition to the side of your pickup. These eye-catching step bars allow the driver and passengers to easily enter and exit the cab using stylized stepping points conveniently located at each door. Each pair of drop down steps installs seamlessly against the vehicles contours for enhanced style and protection. The sleek, all-black steps offer a durable and functional option that you and your truck will love.

Product Features:
  • Mounting Brackets Included
  • Rocker Panel Mount
  • Drilling Not Required
  • 1-Piece Mild Steel Construction Is E-Coated And Coated In A Fine, Matte Black Finish For Secure And Durable Footing
  • 3 Inch Angled Design Offers A Sleek Yet Rugged Design And Enhanced Rocker Panel Protection
  • Welded End Caps Add A Clean, Finished Appearance While Keeping The Elements Out – Steel Mounting Brackets Are Included To Install Steps Securely To The Rocker Panel
  • Provides Moderate Protection Against Road Hazards And Debris
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Westin – Thrasher Running Boards (Part No.28-81275)

Thrasher Running Boards

from

$640.99
Westin Thrasher Boards are made of a 1-piece stamped steel construction. The boards are an aggressive Pre-Runner style and feature indented louvers along the step area. Thrasher Boards have a textured black powder coat finish and include injection molded bracket covers for a finished look.

Product Features:
  • Mount Kit Included
  • Aggressive Chiseled Design
  • 1-Piece Stamped Steel Construction
  • Indented Louvers
  • Incl. Injection Molded Bracket Covers
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Dee Zee – Powder Coated, Black, Aluminum, Unlighted, Mounting Kit Required, 86 Inch Length (Part No.DZ16321)

Powder Coated, Black, Aluminum, Unlighted, Mounting Kit Required, 86 Inch Length

from

$499.99
Dee Zee NXc Steps (board) The NXc step is designed for today crossover utility vehicles (CUV). A universal board combined with custom fit brackets (sold separately) fit all listed applications. The board is available in three different finishes for step and trim, Black or Chrome, Black or Black, Stainless or Black. Lightweight aluminum powder coated frame. Full length protective accent trim. Slip resistant raised rubber grommets on step area. Required custom fit bracket kits sold separately. Black or Black

Product Features:
  • Lightweight Aluminum Powder Coated Frame
  • Full Length Protective Accent Trim
  • Slip Resistant Raised Rubber Grommets On The Step Area
  • NRT(TM) Powder Coated Steel Braces
  • Mounting Braces Not Included
  • Widened 6 Inch Step Area
  • No Drilling Required
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Westin – Sure-Grip Running Boards (Part No.27-6650)

Sure-Grip Running Boards

from

$460.99
Extruded aluminum. Slip resistant rubber step area. Molded end caps add unique style. Cradle mounted boards.

Product Features:
  • Vehicle Specific Mount Kit Required; Sold Separately
  • Corrosion Resistant Extruded Aluminum Board
  • Slip Resistant Textured Step Surface
  • Injection Molded Polymer End Caps
  • Rocker Panel Gap Strip Included For Finished Look
  • Optional Light Kit Available PN[27-6000]
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Westin – SG6 Running Boards (Part No.27-64725)

SG6 Running Boards

from

$541.99
Westin’s SG6 Running Boards feature textured slip resistant step pads enhancing footing in virtually all weather conditions. SG6 Running Boards also include a rocker panel gap strip to provide users with the appropriate Westin finished look. A polished aluminum finish with a protective anodized coating prevents oxidation increasing durability and extending product life. A vehicle specific mount kit is required and sold separately. The SG6 LED Light Kit is also available and sold separately. Choose Westin’s SG6 Running Boards for the perfect balance between safety, function and style!

Product Features:
  • Vehicle Specific Mount Kit Required; Sold Separately
  • Stylish Modern Design
  • 5 1/2 in. Step Surface Width
  • Corrosion Resistant Extruded Aluminum Board
  • Injection Molded End Caps
  • Slip Resistant Textured Step Surface
  • Rocker Panel Gap Strip Included For Finished Look
  • Optional Light Kit For End Caps PN[27-60000]
See More

TrailFX – With Step Pad, 4"Oval Bent, Powder Coated Titanium Black, Ms, Rocker Panel Mount (Part No.A1002B)

With Step Pad, 4"Oval Bent, Powder Coated Titanium Black, Ms, Rocker Panel Mount

from

$346.99
TrailFX Step Bars maximize style and safety when entering and exiting your vehicle. Available in various sizes, shapes, and finishes, TrailFX steps offer a solution for every need. Each pair installs seamlessly against the vehicle contours for a sleek and stylish look. With TrailFX step products, a custom look does not have to break the bank.

Product Features:
  • Rocker Panel Mount
  • Q235A Steel Finished With Titanium Black Ensures Maximum Strength And Durability: Extra-Large Molded Step Pads Provide Slip-Resistant Entry And Exit Points To The Cab
  • Welded End Caps Add A Clean, Finished Appearance While Keeping The Elements Out: Steel Mounting Brackets Are Included To Install Steps With Ease
  • Provides Moderate Protection Against Road Hazards And Debris
  • Larger Step For Secure Footing, Easy Vehicle Access With Slip-resistant Molded Step Pad
  • Custom Designed For Each Application. Easy To Install
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TrailFX – Powder Coated, Black, Steel, Unlighted, Rocker Panel Mount, 300 Pound Capacity (Part No.RBW01B)

Powder Coated, Black, Steel, Unlighted, Rocker Panel Mount, 300 Pound Capacity

from

$374.99
Whether you are looking for additional traction or easier vehicle entry, TrailFX Running Boards offer a rigid yet attractive solution for trucks, vans, and SUVs. Spanning the full length of the vehicle, these running boards are designed to withstand and deflect the elements, dirt, and debris. Constructed with high quality materials, and designed with style in mind, TrailFX Running Boards are an essential addition to any personal or professional vehicle.

Product Features:
  • Heavy Duty 14-Gauge, Precision Stamped Carbon Steel Deck Is E-Coated And Finished In Industrial Grade Powder Coat To Resist Rust And Corrosion
  • 6.5 Inch Wide Stepping Area, Which Runs The Full-Length Of The Vehicle Features Aggressive Traction Lugs Designed For Maximum Footing In All Weather Conditions
  • 1-Piece Stamped Steel End Caps Are Welded Directly To The Deck
  • Track Mounting System Allows For Multiple Mounting Positions To Clear Mud Flaps
  • Provides Moderate Protection Against Road Hazards And Debris
  • Fully E-Coated Brackets Are Included Along With Required Hardware And Instructions For Easy Installation
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TrailFX – Nerf Bars, 4 Inch Oval Straight, Powder Coated, Black, Mild Steel, Regular Cab (Part No.A1529B)

Nerf Bars, 4 Inch Oval Straight, Powder Coated, Black, Mild Steel, Regular Cab

from

$275.99
TrailFX Step Bars maximize style and safety when entering and exiting your vehicle. Available in various sizes, shapes, and finishes, TrailFX steps offer a solution for every need. Each pair installs seamlessly against the vehicles contours for a sleek and stylish look. With TrailFX step products, a custom look doesn’t have to break the bank.

Product Features:
  • Rocker Panel Mount
  • 30 To 60 Minute Professional Installation Time
  • Q235A Steel Finished With A Gloss Black Powder Coat Ensures Maximum Strength And Durability
  • Extra Large Molded Step Pads Provide Slip Resistant Entry Points To The Cab
  • Welded End Caps Add A Clean, Finished Appearance While Keeping The Elements Out; Steel Mounting Brackets Are Included To Install Steps With Ease
  • Limited 3 Year Warranty
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Westin – Premier Oval Nerf Step Bar Mount Kit (Part No.22-2255)

Premier Oval Nerf Step Bar Mount Kit

from

$189.99
Product Features:
  • Required Part For Oval Tubes
  • Vehicle Specific Mount Kit Insures Proper Fit
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Westin – Premier Oval Nerf Step Bar Mount Kit (Part No.22-2005)

Premier Oval Nerf Step Bar Mount Kit

from

$169.99
Required part for oval tubes. Vehicle specific mount kit insures proper fit. 5 year warranty.

Product Features:
  • Required Part For Oval Tubes
  • Vehicle Specific Mount Kit Insures Proper Fit
  • 5 Year Warranty
See More

Westin – Premier Oval Nerf Step Bar Mount Kit (Part No.22-1075)

Premier Oval Nerf Step Bar Mount Kit

from

$174.99
Required part for oval tubes. Vehicle specific mount kit insures proper fit. 5 year warranty.

Product Features:
  • Required Part For Oval Tubes
  • Vehicle Specific Mount Kit Insures Proper Fit
  • 5 Year Warranty
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ARIES – 6 Inch Oval Side Bar Mounting Brackets (Part No.4492)

6 Inch Oval Side Bar Mounting Brackets

from

$64.99
These mounting brackets are designed for vehicle-specific application and provide solid attachment for ARIES 6″ oval side bars. They feature high-strength steel construction and a durable black powder coat finish. With a vehicle-specific design and the track mounting system of ARIES 6″ ovals, you get a custom fit for your unique truck or SUV and an easy-as-possible, no-drill installation. To verify which side bars and brackets will fit your specific vehicle, see the application information. All brackets will accommodate both finish options.

Product Features:
  • No-drill, vehicle-specific application for a custom fit
  • Compatible with 6″ oval track mounting system for easy, secure installation
  • Heavy-duty steel construction with a durable black powder coat finish
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Westin – Premier Oval Nerf Step Bar Mount Kit (Part No.22-2015)

Premier Oval Nerf Step Bar Mount Kit

from

$169.99
Required part for oval tubes. Vehicle specific mount kit insures proper fit. 5 year warranty.

Product Features:
  • Required Part For Oval Tubes
  • Vehicle Specific Mount Kit Insures Proper Fit
  • 5 Year Warranty
See More

Most Popular Side Bars and Sideskirts for 2025 GMC Sierra 3500 HDs

Enhance your 2025 GMC Sierra 3500 HD with one of the 15 Side Bars and Sideskirts we have in stock, starting at just $185.99.

Westin – PRO TRAXX 5 Oval Nerf Step Bars (Part No.21-54130)

PRO TRAXX 5 Oval Nerf Step Bars

from

$623.99
Westins Pro Traxx 5 Oval Nerf Step Bars feature a 5″ oval tube with a heavy-duty step pad that provides a wider and more secure step area. They feature 30° factory style bends that have seamless domed ends so there are no end-caps or exposed bolt heads. Applications are bolt-on installation.

Product Features:
  • 30 Degree Factory Style Bends At Each End Of Tube
  • Fully Welded Domed Ends
  • Injection Molded Polymer Step Pad
  • Injection Molded Bracket Covers Incl. On Some Apps
  • 5 in. Wide Step Area With Westin Logo
  • Bolt On Installation
  • No Drilling Required On Most Apps
See More

Westin – PRO TRAXX 5 Oval Nerf Step Bars (Part No.21-54135)

PRO TRAXX 5 Oval Nerf Step Bars

from

$587.99
Westins Pro Traxx 5 Oval Nerf Step Bars feature a 5″ oval tube with a heavy-duty step pad that provides a wider and more secure step area. They feature 30° factory style bends that have seamless domed ends so there are no end-caps or exposed bolt heads. Applications are bolt-on installation.

Product Features:
  • 30 Degree Factory Style Bends At Each End Of Tube
  • Fully Welded Domed Ends
  • Injection Molded Polymer Step Pad
  • Injection Molded Bracket Covers Incl. On Some Apps
  • 5 in. Wide Step Area With Westin Logo
  • Bolt On Installation
  • No Drilling Required On Most Apps
See More

Westin – HDX Xtreme Nerf Step Bars (Part No.56-24135)

HDX Xtreme Nerf Step Bars

from

$611.99
Upgrade your vehicle with a set of heavy duty Westin’s HDX Xtreme Nerf Step Bars. Key design features include: Oversized step areas for easier cab entry and exit. A solid 1-piece construction and a textured powder coat finish. Strategically engineered step locations guarantee ease of access while also complementing the contours of your vehicle.

Product Features:
  • Mount Kit Included
  • Oversized Step Areas For Easier Cab Entry And Exit
  • Injection Molded Polymer Step Pad
  • Fully Welded Construction
  • Style Compliments HDX Bumpers
  • Registered US Patent
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Westin – R5 Nerf Step Bars (Part No.28-51275)

R5 Nerf Step Bars

from

$569.99
Westin R5 Nerf Step Bars have 5 inch wide step area with a unique molded polymer step pad design. R5 Nerf Step Bars are rocker panel mounted and include injection molded bracket covers for a full and stylized appearance. R5 LED Light Kit upgrade is available, sold separately.

Product Features:
  • Mount Kit Included
  • Rocker Panel Mounted
  • 5 in. Wide Step Area
  • Injection Molded Polymer Step Pad
  • Incl. Injection Molded Bracket Covers
  • Optional LED Light Kit Available [Sold Separately]
See More

Westin – R7 Nerf Step Bars (Part No.28-71270)

R7 Nerf Step Bars

from

$987.99
Westin R7 Boards feature oversized step pads and OE style traction grooves. R7 Boards are sold in complete kits that include: Driver and passenger-side boards vehicle specific mount kit and come with injection molded bracket covers for an extra clean look.

Product Features:
  • Mount Kit Included
  • OE Style
  • Recessed Board Design Conceals Brackets
  • Includes Molded Bracket Covers
See More

Westin – R7 Nerf Step Bars (Part No.28-71275)

R7 Nerf Step Bars

from

$752.99
Westin R7 Boards feature oversized step pads and OE style traction grooves. R7 Boards are sold in complete kits that include: Driver and passenger-side boards vehicle specific mount kit and come with injection molded bracket covers for an extra clean look.

Product Features:
  • Mount Kit Included
  • OE Style
  • Recessed Board Design Conceals Brackets
  • Includes Molded Bracket Covers
See More

Westin – R5 Nerf Step Bars (Part No.28-51260)

R5 Nerf Step Bars

from

$657.99
Westin R5 Nerf Step Bars have 5 inch wide step area with a unique molded polymer step pad design. R5 Nerf Step Bars are rocker panel mounted and include injection molded bracket covers for a full and stylized appearance. R5 LED Light Kit upgrade is available, sold separately.

Product Features:
  • Mount Kit Included
  • Rocker Panel Mounted
  • 5 in. Wide Step Area
  • Injection Molded Polymer Step Pad
  • Incl. Injection Molded Bracket Covers
  • Optional LED Light Kit Available [Sold Separately]
See More

Westin – R7 Nerf Step Bars (Part No.28-71265)

R7 Nerf Step Bars

from

$611.99
Westin R7 Boards feature oversized step pads and OE style traction grooves. R7 Boards are sold in complete kits that include: Driver and passenger-side boards vehicle specific mount kit and come with injection molded bracket covers for an extra clean look.

Product Features:
  • Mount Kit Included
  • OE Style
  • Recessed Board Design Conceals Brackets
  • Includes Molded Bracket Covers
See More

Westin – Premier 6 Oval Nerf Step Bars (Part No.22-6030)

Premier 6 Oval Nerf Step Bars

from

$536.99
Westin introduces their new Premier 6 Oval Tube Steps in a highly Polished Stainless Steel or Black Powdercoat Mild Steel finish. The new Premier 6 Oval Side Bars offer tough solid construction with a sleek 5 step pad. Available in 4 lengths 53 75 85 and

Product Features:
  • Unique Style w/Tough Construction
  • Sleek Style And Finish
  • OE Style Look
  • UV Stable 5 in. Wide Step Pad
  • Stylized End Caps
  • Contoured Step Pad
  • Lifetime Warranty
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Westin – Premier 4 Oval Nerf Step Bars (Part No.22-5030)

Premier 4 Oval Nerf Step Bars

from

$508.99
Saddle mounted step pad. Molded oval end caps. Features cradle mounted tubes and no drill installation. Black powder coated mild steel finish.

Product Features:
  • Vehicle Specific Mounting Kit Required; Sold Separately
  • 4 in. Oval Tube
  • Injection Molded Polymer Step Pad
  • Molded Oval End Caps
  • Bolt-On Installation; No Drilling Required
  • Limited Lifetime Warranty
See More

Dee Zee – With Step Pads, 6" Oval Straight, Polished Ss, Requires Running Board Mount (Part No.DZ16103)

With Step Pads, 6" Oval Straight, Polished Ss, Requires Running Board Mount

from

$506.99
Trucks of today continue to get bigger and badder, and as they do it is gets harder to climb up into the cab. todays mammoth trucks deserve a beefy step to accent the rugged exterior, not a wimpy toothpick. Dee Zee has created 6 Inch Stainless Steel Nerf bars to help you enter and exit the truck with ease. The durable 16-guage steel foundation is overlaid with the brilliant shine of stainless steel. Rugged molded plastic step pads provide a non-slip surface so that you Do not have to worry about slipping and banging your shins. The steel underside and sturdy mounting brackets boast NRT (TM) texture black Powder Coated protection to repel rust formation. The durable mounting braces are specifically designed for your truck to ensure a perfect fit and eliminate drilling the frame.

Product Features:
  • Mount Kit Not Included
  • Drilling Not Required
  • Made From Rugged 16-Gauge Steel
  • 6 Inch Wide Design To Maximize Step Area
  • Molded Step Pads At Each Door Provide Unmatched Traction
  • Stainless Steel Covers Exterior Surface Areas
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Dee Zee – With Step Pads, 6" Oval Straight, Black Textured Powder Coated Steel (Part No.DZ16121)

With Step Pads, 6" Oval Straight, Black Textured Powder Coated Steel

from

$407.99
Trucks these days keep getting bigger and bigger. Whether you use your monster for work or play, the 6 Inch UltraBlack Tube Step design gives you a rugged step for climbing in and out of your beast. Constructed of heavy-duty steel with an oval design our UltraBlack Tube Step features molded plastic end caps and step pads at each door to keep your feet planted securely to the step when entering and exiting the vehicle. The rugged step pads are embossed with the Dee Zee name and provide a stylish non-slip surface. Let face it, as strong as steel is, it is also is susceptible to rust and corrosion. Our UltraBlack Tube step is protected by a textured black NRT (TM) (No Rust Technology) powder coat, a finish specially developed to increase corrosion protection.

Product Features:
  • Mount Kit Not Included
  • Drilling Not Required
  • Made From Rugged 16-Gauge Steel
  • 6 Inch Wide Design To Maximize Step Area
  • Molded Step Pads At Each Door Provide Unmatched Traction
  • Textured Black Powder Coated Featuring NRT (TM)
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Westin – Premier 6 Oval Nerf Step Bars (Part No.22-6035)

Premier 6 Oval Nerf Step Bars

from

$367.99
Westin introduces their new Premier 6 Oval Tube Steps in a highly Polished Stainless Steel or Black Powdercoat Mild Steel finish. The new Premier 6 Oval Side Bars offer tough solid construction with a sleek 5 step pad. Available in 4 lengths 53 75 85 and

Product Features:
  • Unique Style w/Tough Construction
  • Sleek Style And Finish
  • OE Style Look
  • UV Stable 5 in. Wide Step Pad
  • Stylized End Caps
  • Contoured Step Pad
  • 3 Year Limited Warranty
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ARIES – 3" Round Black Steel Side Bars, Select Silverado, Sierra 1500 Extended Cab (Part No.204054)

3" Round Black Steel Side Bars, Select Silverado, Sierra 1500 Extended Cab

from

$295.99
ARIES 3″ side bars are more than a fancy decal for your truck, Jeep or SUV. They are a confident first step on each new adventure. These 3″ nerf bars are constructed from strong carbon steel for superior rigidity, and they feature a sleek semi-gloss black powder coat finish. For an added edge, each nerf bar also goes through an E-coat process, before receiving its black powder coat, to strengthen and protect the final finish against peeling, chipping and scratching. ARIES 3″ round side bars are also available in polished stainless steel or semi-gloss black powder-coated steel. All ARIES 3″ nerf bars come with heavy-duty steel brackets and non-skid step pads. The mounting brackets are strong and custom-designed for specific makes and models to allow the side bars to contour to the lines of your vehicle. They offer easy installation and the strength necessary to provide sound footing. These particular custom nerf bars fit specific years of the Chevrolet Silverado 1500 and GMC Sierra 1500 extended cab (see application info to verify fitment). ARIES 3″ round side bars also come with non-skid step pads made of tough polypropylene. These step pads feature a textured pattern for enhanced safety, and they cover a wide portion of the tubes for a more comfortable step.

Product Features:
  • Unique bends to contour to the body of the vehicle
  • Custom, non-skid step pads for safe entry and exit
  • 3″ diameter, heavy-wall tube design
  • High-strength carbon steel construction
  • Highly rust-resistant semi-gloss black powder coat and E-coat finish
  • No-drill, vehicle-specific application for a custom fit
  • Heavy-duty steel mounting brackets for a solid step
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ARIES – 3in. Round Semi-Gloss Black Steel Side Bars (Part No.204053)

3in. Round Semi-Gloss Black Steel Side Bars

from

$185.99
ARIES 3″ side bars are more than a fancy decal for your truck, Jeep or SUV. They are a confident first step on each new adventure. These 3″ nerf bars are constructed from strong carbon steel for superior rigidity, and they feature a sleek semi-gloss black powder coat finish. For an added edge, each nerf bar also goes through an E-coat process, before receiving its black powder coat, to strengthen and protect the final finish against peeling, chipping and scratching. ARIES 3″ round side bars are also available in polished stainless steel or semi-gloss black powder-coated steel. All ARIES 3″ nerf bars come with heavy-duty steel brackets and non-skid step pads. The mounting brackets are strong and custom-designed for specific makes and models to allow the side bars to contour to the lines of your vehicle. They offer easy installation and the strength necessary to provide sound footing. These particular custom nerf bars fit specific years of the Chevrolet Silverado 1500 and GMC Sierra 1500 (see application info to verify fitment). ARIES 3″ round side bars also come with non-skid step pads made of tough polypropylene. These step pads feature a textured pattern for enhanced safety, and they cover a wide portion of the tubes for a more comfortable step.

Product Features:
  • Unique bends to contour to the body of the vehicle
  • Custom, non-skid step pads for safe entry and exit
  • 3″ diameter, heavy-wall tube design
  • High-strength carbon steel construction
  • Highly rust-resistant semi-gloss black powder coat and E-coat finish
  • No-drill, vehicle-specific application for a custom fit
  • Heavy-duty steel mounting brackets for a solid step
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Best-Selling 2025 GMC Sierra 3500 HD Step Nerf Bar Mount Kit

Upgrade your Sierra 3500 HD with our best-selling Step Nerf Bar Mount Kit.

Westin – Premier Oval Nerf Step Bar Mount Kit (Part No.22-2255)

Premier Oval Nerf Step Bar Mount Kit

from

$189.99
Product Features:
  • Required Part For Oval Tubes
  • Vehicle Specific Mount Kit Insures Proper Fit
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Top-Quality Running Boards and Steps for 2025 GMC Sierra 3500 HDs

Choose a high-quality OEM or aftermarket Running Boards and Step for GMC Sierra 3500 HDs and enjoy top-notch performance from $189.99.

Westin – Running Board Mount Kit (Part No.27-2255)

Running Board Mount Kit

from

$189.99
SG6 LED Running Boards are designed to be vehicle specific and require a mount kit (sold separately). Kit includes driver and passenger side e-coated steel mount brackets, complete with hardware and installation instruction sheet.

Product Features:
  • Black Powder Coat Finish
  • E-Coated Steel
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Westin – Sure-Grip Running Boards (Part No.27-6150)

Sure-Grip Running Boards

from

$591.99
Extruded aluminum. Slip resistant rubber step area. Molded end caps add unique style. Cradle mounted boards.

Product Features:
  • Vehicle Specific Mount Kit Required; Sold Separately
  • Corrosion Resistant Extruded Aluminum Board
  • Slip Resistant Textured Step Surface
  • Injection Molded Polymer End Caps
  • Rocker Panel Gap Strip Included For Finished Look
  • Optional Light Kit Available PN[27-6000]
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Westin – Thrasher Running Boards (Part No.28-81275)

Thrasher Running Boards

from

$640.99
Westin Thrasher Boards are made of a 1-piece stamped steel construction. The boards are an aggressive Pre-Runner style and feature indented louvers along the step area. Thrasher Boards have a textured black powder coat finish and include injection molded bracket covers for a finished look.

Product Features:
  • Mount Kit Included
  • Aggressive Chiseled Design
  • 1-Piece Stamped Steel Construction
  • Indented Louvers
  • Incl. Injection Molded Bracket Covers
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Westin – Sure-Grip Running Boards (Part No.27-6630)

Sure-Grip Running Boards

from

$542.99
Extruded aluminum. Slip resistant rubber step area. Molded end caps add unique style. Cradle mounted boards.

Product Features:
  • Vehicle Specific Mount Kit Required; Sold Separately
  • Corrosion Resistant Extruded Aluminum Board
  • Slip Resistant Textured Step Surface
  • Injection Molded Polymer End Caps
  • Rocker Panel Gap Strip Included For Finished Look
  • Optional Light Kit Available PN[27-6000]
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Westin – SG6 Running Boards (Part No.27-64725)

SG6 Running Boards

from

$541.99
Westin’s SG6 Running Boards feature textured slip resistant step pads enhancing footing in virtually all weather conditions. SG6 Running Boards also include a rocker panel gap strip to provide users with the appropriate Westin finished look. A polished aluminum finish with a protective anodized coating prevents oxidation increasing durability and extending product life. A vehicle specific mount kit is required and sold separately. The SG6 LED Light Kit is also available and sold separately. Choose Westin’s SG6 Running Boards for the perfect balance between safety, function and style!

Product Features:
  • Vehicle Specific Mount Kit Required; Sold Separately
  • Stylish Modern Design
  • 5 1/2 in. Step Surface Width
  • Corrosion Resistant Extruded Aluminum Board
  • Injection Molded End Caps
  • Slip Resistant Textured Step Surface
  • Rocker Panel Gap Strip Included For Finished Look
  • Optional Light Kit For End Caps PN[27-60000]
See More

Westin – Sure-Grip Running Boards (Part No.27-6155)

Sure-Grip Running Boards

from

$535.99
Extruded aluminum. Slip resistant rubber step area. Molded end caps add unique style. Cradle mounted boards.

Product Features:
  • Vehicle Specific Mount Kit Required; Sold Separately
  • Corrosion Resistant Extruded Aluminum Board
  • Slip Resistant Textured Step Surface
  • Injection Molded Polymer End Caps
  • Rocker Panel Gap Strip Included For Finished Look
  • Optional Light Kit Available PN[27-6000]
See More

Westin – Sure-Grip Running Boards (Part No.27-6650)

Sure-Grip Running Boards

from

$460.99
Extruded aluminum. Slip resistant rubber step area. Molded end caps add unique style. Cradle mounted boards.

Product Features:
  • Vehicle Specific Mount Kit Required; Sold Separately
  • Corrosion Resistant Extruded Aluminum Board
  • Slip Resistant Textured Step Surface
  • Injection Molded Polymer End Caps
  • Rocker Panel Gap Strip Included For Finished Look
  • Optional Light Kit Available PN[27-6000]
See More

FAQs for 2025 GMC Sierra 3500 HD Bodies and Fender Parts

What are the best-selling Bodies and Fender Parts for 2025 GMC Sierra 3500 HDs?

Out of 23 Bodies and Fender Parts that fit 2025 GMC Sierra 3500 HDs, the following parts are the top sellers:

What’s the price range for 2025 GMC Sierra 3500 HD Bodies and Fender Parts?

The prices of Bodies and Fender Parts for the 2025 GMC Sierra 3500 HD range from $185.99 up to $987.99 for the most premium parts.

What is the average price of a Bodies and Fender Part for a 2025 GMC Sierra 3500 HD?

The average price for Bodies and Fender Parts for the 2025 GMC Sierra 3500 HD is $516.08. Keep in mind the variety of part types within our Bodies and Fender Part category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Bodies and Fender Parts for other GMC Sierra 3500 HD model years?

Yes, we carry Bodies and Fender Parts for 17 model years of GMC Sierra 3500 HDs between 2007 and 2024. The following model years are the most popular for Bodies and Fender Part purchases: 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, and 2015.

What are the cheapest Bodies and Fender Parts for my 2025 GMC Sierra 3500 HD?

The cheapest 2025 GMC Sierra 3500 HD Bodies and Fender Parts we carry are:

Does Advance Auto Parts sell Bodies and Fender Parts for any other 2025 GMC models?

What types of Bodies and Fender Parts do you sell for my 2025 GMC Sierra 3500 HD?

As of 11/2/25, these are some of the most in-demand types of Bodies and Fender Parts for a 2025 GMC Sierra 3500 HD:

Can I get help with 2025 GMC Sierra 3500 HD Bodies and Fender Part orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Bodies and Fender Parts and more.

What is your return policy for GMC Sierra 3500 HD Bodies and Fender Parts?

Advance Auto Parts keeps returns simple. For new GMC Sierra 3500 HD Bodies and Fender Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.