2003 GMC Sierra 3500 Westin Parts

Choose your Submodel for your 2003 GMC Sierra 3500


Showing 1 - 10 of 51 products
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Westin
  • Black Requires Installation Kit 27-1025
  • 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
2003 - GMC Sierra 3500 United States Extended Cab Pickup

Westin
  • Premier 4 Oval Nerf Step Bars
  • Body Mount Excludes Canadian Diesel Requires Installation Kit 22-1065 4" Step Black 75" Long
  • Premier 4 Oval Nerf Step Bars. Black. Steel. 75 in.. Does Not Include Mount Kit. Vehicle Specific Mount Kit Must Be Purchased Separately.
  • Premier Oval 4" Nerf Step Bars
  • Product Attributes:
    • Bar Diameter (in.): 4" Oval
    • Can Ship By Ground Delivery: Yes
    • Color/Material: Black Steel
    • Bar Length: Cab Length
    • Finish/Color: Black
  • Features:
    • Mount kit sold separately
    • 4" oval tube
    • Protects vehicle rocker panels from potential damage
    • Cradle mounted tubes
    • Injection molded polymer step pad
    • Molded oval end caps
    • Bolt-on installation - no drilling required on most applications
  • Saddle mounted step pad. Molded oval end caps. Features cradle mounted tubes and no drill installation. Black powder coated mild steel finish. 3 year warranty.

Additional Fitment Information:
Vehicle Region Body
2003 - GMC Sierra 3500 United States Extended Cab Pickup

Westin
  • Black; Steel; Mount Kit Included; Body Mount
  • Platinum 4 Oval Nerf Step Bars. Black. Steel. Mount Kit Included. Body Mount.
  • Platinum 4 Oval Nerf Step Bars
  • Product Attributes:
    • Bar Diameter (in.): 4" Oval
    • Can Ship By Ground Delivery: Yes
    • WARNING CA Proposition 65: Yes
    • WARNING CA Proposition 65 Message: Cancer And Birth Defect
    • Color/Material: Black Steel
    • Bar Length: Cab Length
    • Finish/Color: Black
  • Features:
    • Mount kit included
    • OE style oval tube steps and mandrel bends
    • Protects vehicle rocker panels from potential damage
    • Injection molded polymer step pad, recessed step area
    • Bolt-on installation - no drilling required on most applications
  • Westins Platinum 4 Oval Nerf Step Bars feature OE styling and offer an alternative look and style to traditional round tube steps. Their larger size provides strength and confidence with a full 4in. wide recessed step area. Platinum 4 Oval Nerf Step Bars are vehicle specific applications that feature a no-drill installation.

Additional Fitment Information:
Vehicle Block CC Engine Sub Model Body CID
2003 - GMC Sierra 3500 V 6599 8 Cyl 6.6L SLE Extended Cab Pickup 403

Westin
  • Brushed Requires Installation Kit 27-1025
  • 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
2003 - GMC Sierra 3500 United States Extended Cab Pickup

Westin
  • Black; Steel; Mount Kit Included; Body Mount
  • Platinum 4 Oval Nerf Step Bars. Black. Steel. Mount Kit Included. Body Mount.
  • Platinum 4 Oval Nerf Step Bars
  • Product Attributes:
    • Bar Diameter (in.): 4" Oval
    • Can Ship By Ground Delivery: Yes
    • WARNING CA Proposition 65: Yes
    • WARNING CA Proposition 65 Message: Cancer And Birth Defect
    • Color/Material: Black Steel
    • Bar Length: Cab Length
    • Finish/Color: Black
  • Features:
    • Mount kit included
    • OE style oval tube steps and mandrel bends
    • Protects vehicle rocker panels from potential damage
    • Injection molded polymer step pad, recessed step area
    • Bolt-on installation - no drilling required on most applications
  • Westins Platinum 4 Oval Nerf Step Bars feature OE styling and offer an alternative look and style to traditional round tube steps. Their larger size provides strength and confidence with a full 4in. wide recessed step area. Platinum 4 Oval Nerf Step Bars are vehicle specific applications that feature a no-drill installation.

Additional Fitment Information:
Vehicle Block CC Engine Sub Model Body CID
2003 - GMC Sierra 3500 V 6599 8 Cyl 6.6L SLE Standard Cab Pickup 403

Westin
  • Unlighted 93" Long Requires Installation Kit 27-1045
  • Molded Running Boards. Unlighted. 93 in. Board. Black Molded Plastic. Does Not Include Mount Kit. Vehicle Specific Mount Kit Must Be Purchased Separately.
  • Molded Running Boards
  • Product Attributes:
    • Can Ship By Ground Delivery: Yes
    • Board Length: 93in
    • Finish/Color: Black
  • Features:
    • Mount kit sold separately
    • Injection molded top aluminum base board
    • Protects vehicle rocker panels from potential damage
    • OEM style design
    • UV resistant black molded polymer
    • Cradle mounted boards
    • Available in lighted and unlighted
    • Universal lengths: 72", 79" and 93
  • OE style design. UV resistant black molded polymer. Extruded aluminum base board. Cradle mounted boards. Customized mounting brackets sold separately. Adds perfect finishing touch to vehicle. 5 year warranty.

Additional Fitment Information:
Vehicle Region Body
2003 - GMC Sierra 3500 United States Crew 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
    • Mounting Method: Body
    • 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:
    • Stylized step available in stainless or powdered coat mild steel finish options
    • 1.5in mandrel bent steel tube construction offers enhanced rocker panel protection
    • Distinctive 4in drop with die-stamped step plates for maximum all-weather traction
    • 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
2003 - GMC Sierra 3500 Crew Cab Pickup

Westin
  • HDX Drop Nerf Step Bars
  • Textured Black Body Mount
  • HDX Drop Nerf Step Bars. Textured Black. Steel.
  • 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
2003 - GMC Sierra 3500 Left and Right United States Crew Cab Pickup

Westin
  • HDX Stainless Drop Nerf Step Bars
  • Textured Black Body Mount
  • HDX Stainless Drop Nerf Step Bars. Textured Black. Stainless Steel.
  • HDX Stainless Drop Nerf Bars
  • Product Attributes:
    • Can Ship By Ground Delivery: Yes
    • Color/Material: Black Powdercoat Stainless Steel
    • 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
  • 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.

Additional Fitment Information:
Vehicle Position Region Body
2003 - GMC Sierra 3500 Left and Right United States Crew Cab Pickup

Westin
  • HDX Drop Nerf Step Bars
  • Textured Black Body Mount
  • HDX Drop Nerf Step Bars. Textured Black. Steel.
  • 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
2003 - GMC Sierra 3500 Left and Right United States Extended Cab Pickup
Showing 1 - 10 of 51 products

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