2020 GMC Sierra 3500 HD Westin Parts

Choose your Submodel for your 2020 GMC Sierra 3500 HD


Showing 1 - 10 of 82 products
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Westin
  • Black Requires Installation Kit 27-2255
  • Sure-Grip Running Boards. Black Aluminum. 79 in. Length. Does Not Include Mount Kit. Vehicle Specific Mount Kit Must Be Purchased Separately.
  • Sure-Grip Running Boards
  • Product Attributes:
    • Can Ship By Ground Delivery: Yes
    • Board Length: 79in
    • Finish/Color: Black
  • Features:
    • Corrosion proof extruded aluminum base board
    • Protects vehicle rocker panels from potential damage
    • Textured rubber step area
    • Cradle mounted boards
    • Injection molded polymer end caps
    • Includes 1" rubber close out flange
    • Optional light kit available (Part No. 27-6000)
    • Universal lengths: 54", 69", 72", 79", 85" and 93
    • Mount kit sold separately
  • Extruded aluminum. Slip resistant rubber step area. Molded end caps add unique style. Cradle mounted boards. 5 year warranty.

Additional Fitment Information:
Vehicle Region Body
2020 - GMC Sierra 3500 HD United States Extended Cab Pickup

Westin
  • Brushed Requires Installation Kit 27-2255
  • Sure-Grip Running Boards. Brushed Aluminum. 79 in. Length. Does Not Include Mount Kit. Vehicle Specific Mount Kit Must Be Purchased Separately.
  • Sure-Grip Running Boards
  • Product Attributes:
    • Can Ship By Ground Delivery: Yes
    • Board Length: 79in
    • Finish/Color: Brushed Aluminum
  • Features:
    • Mount kit sold separately
    • Corrosion proof extruded aluminum base board
    • Protects vehicle rocker panels from potential damage
    • Textured rubber step area
    • Cradle mounted boards
    • Injection molded polymer end caps
    • Includes 1" rubber close out flange
    • Optional light kit available (Part No. 27-6000)
    • Universal lengths: 54", 69", 72", 79", 85" and 93
  • Extruded aluminum. Slip resistant rubber step area. Molded end caps add unique style. Cradle mounted boards. 5 year warranty.

Additional Fitment Information:
Vehicle Region Body
2020 - GMC Sierra 3500 HD United States Extended Cab Pickup

Westin
  • Outlaw Drop Nerf Step Bars
  • Drop; Steel; Textured Black Textured Black
  • Outlaw Drop Nerf Step Bars.Textured Black.
  • Outlaw Nerf Step Bars
  • Product Attributes:
    • Bar Diameter (in.): 1.5
    • Can Ship By Ground Delivery: Yes
    • WARNING CA Proposition 65: Yes
    • WARNING CA Proposition 65 Message: Cancer And Birth Defect
    • Bar Length: Cab Length
    • Finish/Color: Textured Black
    • Tube Shape: Round
  • Features:
    • Constructed with 10 gauge steel
    • Compatiable with Westin Outlaw and Pro-Mod front bumpers
    • Includes mounting bracket and hardware
    • Bolt-on installation, hardware and mounting brackets included. No drilling required
    • Electrostatic base coat provides long lasting corrosion protection
  • If you want a unique upgrade that makes accessing your truck, Jeep or SUV easier, Westin's Outlaw Drop Nerf Step Bars are the finishing touch you need. Crafted from mandrel bent 1.5' diameter steel tube and paired with a welded cab length top plate, these step bars are more than just an eye-catching accessory. The distinctive 4' drop step features a die-stamped step plate that makes it easy to knock the mud, dirt, and debris from your feet before you step into the cabin. Worried about compatibility' We've got you covered. From GM, Ram, and Toyota to Ford Trucks and even the newer 2 and 4 door Broncos, the Outlaw Drop Nerf Step Bars are designed to be a seamless fit. You can learn all about the benefits of adding nerf bars to your rig here. Durability' Check. Aided by an electrostatic base coat, these bars are resistant to corrosion. They're finished with corrosion-resistant textured powder-coat (even in the stainless finish option) and feature a die-stamped stainless steel step area which makes them ruggedly appealing and able to withstand the elements. No tedious installations here ' the Outlaw Drop Nerf Step Bars install with a bolt-on installation process that doesn't require any drilling. Plus, all the necessary hardware and mounting brackets are included in the package. These step bars are backed by the confidence of Westin's full 3-year warranty. If you're in the market for a practical and stylish nerf step with a blend of premium features, these side steps might just be your next buy. Contact us if you have any questions - we're happy to help.

Additional Fitment Information:
Vehicle Sub Model Body
2020 - GMC Sierra 3500 HD SLE Extended Cab Pickup

Westin
  • Outlaw Drop Nerf Step Bars
  • Drop; Textured Black Textured Black
  • Outlaw Drop Nerf Step Bars.Textured Black.
  • Outlaw Nerf Step Bars
  • Product Attributes:
    • Bar Diameter (in.): 1.5
    • Can Ship By Ground Delivery: Yes
    • WARNING CA Proposition 65: Yes
    • WARNING CA Proposition 65 Message: Cancer And Birth Defect
    • Bar Length: Cab Length
    • Finish/Color: Textured Black
    • Tube Shape: Round
  • Features:
    • Constructed with 10 gauge steel
    • Compatiable with Westin Outlaw and Pro-Mod front bumpers
    • Includes mounting bracket and hardware
    • Bolt-on installation, hardware and mounting brackets included. No drilling required
    • Electrostatic base coat provides long lasting corrosion protection
  • If you want a unique upgrade that makes accessing your truck, Jeep or SUV easier, Westin's Outlaw Drop Nerf Step Bars are the finishing touch you need. Crafted from mandrel bent 1.5' diameter steel tube and paired with a welded cab length top plate, these step bars are more than just an eye-catching accessory. The distinctive 4' drop step features a die-stamped step plate that makes it easy to knock the mud, dirt, and debris from your feet before you step into the cabin. Worried about compatibility' We've got you covered. From GM, Ram, and Toyota to Ford Trucks and even the newer 2 and 4 door Broncos, the Outlaw Drop Nerf Step Bars are designed to be a seamless fit. You can learn all about the benefits of adding nerf bars to your rig here. Durability' Check. Aided by an electrostatic base coat, these bars are resistant to corrosion. They're finished with corrosion-resistant textured powder-coat (even in the stainless finish option) and feature a die-stamped stainless steel step area which makes them ruggedly appealing and able to withstand the elements. No tedious installations here ' the Outlaw Drop Nerf Step Bars install with a bolt-on installation process that doesn't require any drilling. Plus, all the necessary hardware and mounting brackets are included in the package. These step bars are backed by the confidence of Westin's full 3-year warranty. If you're in the market for a practical and stylish nerf step with a blend of premium features, these side steps might just be your next buy. Contact us if you have any questions - we're happy to help.

Additional Fitment Information:
Vehicle Body
2020 - GMC Sierra 3500 HD Crew Cab Pickup

Westin
  • HDX Drop Wheel-to-Wheel Nerf Step Bars
  • Textured Black
  • HDX Drop Wheel to Wheel Nerf Step Bars. Steel. Textured Black.
  • HDX Drop Wheel to Wheel Nerf Bars
  • Product Attributes:
    • Can Ship By Ground Delivery: No
    • Bar Length: Wheel To Wheel
    • Finish/Color: Textured Black
    • Tube Shape: Hexagon
  • Features:
    • Stylish Wheel-to-Wheel (W2W) length nerf step bars
    • Choose from Steel with black steel step pads or Stainless Steel with brushed stainless step pads
    • Die stamped step areas for maximum traction
    • Protects vehicle rocker panels from potential damage
    • Provides over 2 more inches of toe/heel step area than our competitors
    • Includes a third step for easy truck bed access
    • Rear step is custom sized for each vehicle application
    • Removable step plates for easy cleaning
    • Fits tight to rocker panel for a solid fit and rugged look
    • Bolt-on installation - no drilling required on most applications
    • Solid 1-piece construction
    • Mount kit included
  • Westins HDX Drop Wheel-to-Wheel Nerf Step Bars feature a notched bar design with a 3rd step location for easy bed access. They provide strong traction with over 2 inches more of toe/heel step area than our Westin's HDX Drop W2W Nerf Step Bars include an added 3rd step location for easier bed area and cargo access. HDX also boasts more than 2 inches of added toe/heel step area which far exceeds all other competitive brands. HDX's notched bar design construction results in a reliable long lasting Bar, with a solid fit and a rugged look. The added length of HDX Drop Wheel-to-wheel Nerf Step Bars provides users with better cab access and better footing and traction for both drivers and passengers. Product includes mount kit and is offered in a variety of vehicle specific applications. Bolt-on installation so no drilling required. Mount kit included. Westin's exclusive Isolator Bracket supports the step bar past the truck cab, a feature that competitors do not offer. Without an Isolator Bracket, the step area that extends past the vehicle is left unsupported. Our unique design provides extra bed support without resulting in annoying creaking sounds.

Additional Fitment Information:
Vehicle Position Region Bed Length Body
2020 - GMC Sierra 3500 HD Left and Right United States 98.2 Crew Cab Pickup

Westin
  • R7 Nerf Step Bars
  • Black
  • R7 Nerf Step Bars. Black. Includes Mount Kit And Hardware.
  • R7 Nerf Bars
  • Product Attributes:
    • Can Ship By Ground Delivery: Yes
    • Bar Length: Cab Length
    • Finish/Color: Black
    • Tube Shape: Rectangle
  • Features:
    • Mount kit included
    • Factory style design
    • Protects vehicle rocker panels from potential damage
    • 7" wide step area
    • Injection molded bracket covers included on some applications
    • Step design conceals brackets for a clean look
  • 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. R7 Boards are available in polished stainless steel backed by a lifetime warranty and black powder coated aluminum backed by a 3-year warranty.

Additional Fitment Information:
Vehicle Position Region Body
2020 - GMC Sierra 3500 HD Left and Right United States Standard Cab Pickup

Westin
  • Textured Black
  • Pro-e Electric Running Boards.Textured Black.
  • Pro-e Electric Running Boards
  • Product Attributes:
    • Lighted: Yes
    • Can Ship By Ground Delivery: Yes
    • Quantity Sold: Set Of 2
    • Board Length: 73.2in
    • Finish/Color: Textured Black
  • Features:
    • Fast and easy installation - no drilling required
    • Automatically deploys when any door opens then retracts when doors are closed
    • 2 waterproof IP68 rated motors per side
    • Included LED lights illuminate step surface
    • Sleek and snug up against body when closed while protecting vehicle rocker panels from potential damage
    • 6" wide durable aluminum running boards
    • 600 lbs. weight capacity (300 lbs. per side)
    • Corrosion resistant aluminum boards
    • Hardware and mounting brackets included
    • Available in black powder coat finish
  • Introducing the all-new Westin Pro-e Power Running Boards, a superior upgrade that combines the functionality and appearance of your Truck, Bronco, Jeep or SUV. The Pro-e Power Running Boards are designed with a practical feature that automatically deploys when the vehicle's door is opened. This allows for easy entry and exit. When the door is closed, the running boards smoothly retract, seamlessly integrating with the vehicle's body and maintaining its sleek appearance. Equipped with two waterproof IP68 rated motors per side, these running boards are engineered for durability and reliability in any weather condition. The integrated LED lights illuminate the 6-inch wide, durable aluminum step surface, ensuring enhanced visibility and safety. Whether it's day or night, you can confidently step onto these running boards with their impressive weight capacity of up to 300 lbs. per side. The Pro-e Power Running Boards are constructed from corrosion-resistant aluminum and finished with a durable textured black powder coat. The included vehicle-specific mounting brackets and hardware guarantee a seamless installation process, ensuring a perfect fit for your vehicle.

Additional Fitment Information:
Vehicle Position Region Body
2020 - GMC Sierra 3500 HD Left and Right United States Extended Cab Pickup

Westin
  • Textured Black
  • HDX Running Boards.Textured Black.
  • HDX Running Boards
  • Product Attributes:
    • Can Ship By Ground Delivery: Yes
    • Finish/Color: Textured Black
  • Features:
    • Vehicle specific
    • Includes hardware
    • Designed and engineered in San Dimas California USA
  • Westin's HDX Running Boards are a top-tier choice for truck and SUV enthusiasts seeking both style and functionality. Crafted from heavy-duty steel, these running boards offer exceptional strength and durability, ideal for rugged use. The high-traction, non-slip step pads ensure safe entry and exit, even in adverse weather conditions. With a sleek, modern design, they complement various vehicle styles while providing added protection against road debris. Installation is straightforward, thanks to vehicle-specific mounting brackets. Westin's HDX Running Boards are engineered to enhance your vehicle's appearance while delivering reliable performance and ease of access.

Additional Fitment Information:
Vehicle Position Region Body
2020 - GMC Sierra 3500 HD Left and Right United States Crew Cab Pickup

Westin
  • HDX Drop Nerf Step Bars
  • Rocker Panel Mount Textured Black
  • HDX Drop Nerf Step Bars. Textured Black. Includes Mount Kit And Hardware.
  • HDX Drop Nerf Bars
  • Product Attributes:
    • Can Ship By Ground Delivery: Yes
    • Bar Length: Cab Length
    • Finish/Color: Textured Black
    • Tube Shape: Hexagon
  • Features:
    • Easy installation with a vehicle specific mounting kit included
    • Solid steel construction, protecting rocker panels from damage
    • Oversized toe/heel space that makes boards easier to use, even in work boots
    • Available in cab length or wheel to wheel length for maximum capability
  • Westins HDX Drop Nerf Step Bars provide the rugged look and function that truck owners need and want. They feature a solid 1-piece steel construction and heavy duty punch plates creating high traction step areas. The HDX Drop Nerf Step Bars also feature Westins notched bar design which provides more than 2in. of additional toe/heel placement versus competitive brands. Available in a textured black finish that complements Westin HDX Bumpers. The HDX Drop Steps have vehicle specific applications and include a vehicle specific mount kit, installation hardware and instructions.

Additional Fitment Information:
Vehicle Position Region Body
2020 - GMC Sierra 3500 HD Left and Right United States Standard Cab Pickup

Westin
  • R7 Nerf Step Bars
  • Stainless Steel
  • R7 Nerf Step Bars. Stainless Steel. Includes Mount Kit And Hardware.
  • R7 Nerf Bars
  • Product Attributes:
    • Can Ship By Ground Delivery: Yes
    • Bar Length: Cab Length
    • Finish/Color: Stainless Steel
    • Tube Shape: Rectangle
  • Features:
    • Mount kit included
    • Factory style design
    • Protects vehicle rocker panels from potential damage
    • 7" wide step area
    • Injection molded bracket covers included on some applications
    • Step design conceals brackets for a clean look
  • 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. R7 Boards are available in polished stainless steel backed by a lifetime warranty and black powder coated aluminum backed by a 3-year warranty.

Additional Fitment Information:
Vehicle Position Region Body
2020 - GMC Sierra 3500 HD Left and Right United States Standard Cab Pickup
Showing 1 - 10 of 82 products

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