Westin ProTraxx 4" Oval Cab Length Step Bars

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Fitment Info

  • Cab length step bars
  • 30° bends
  • Injection molded step pads
  • Welded end caps
  • Sold in pairs
  • Available in two finishes
  • Custom-fit design
  • Easy no-drill installation
  • Manufacturer's warranty

Our #1 value is customer service.

We believe in doing right by our customers, no matter what it takes.

In keeping with that, we offer a “perfect fit guarantee” that ensures your satisfaction on 3 levels: low price, free shipping, and perfect fitment.

- Alan Marek, Founder of PartCatalog.com

The Lowest Price Anywhere--Guaranteed

At PartCatalog, we’ll beat any competing vendor’s price. And we’re so confident in our rock-bottom prices that we’ll refund the difference if you find a lower price elsewhere.

Free Shipping Both Ways

Our “free shipping both ways” policy means that returns and orders ship free of charge. When you place an order, you pay only the list price and any applicable taxes. We cover the shipping to save you money and ensure timely delivery.

100% Guaranteed to Fit

In the highly unlikely event of a fitment problem, we’ll return your purchase at no cost to you. We pay return shipping on all orders, so it won’t cost you a penny to send back a defective part.


  • High quality step bars for steady and safe mounting
  • 30° bends give a factory look and a smooth appearance
  • Wide textured stepping pads with a firm grip to prevent slipping
  • Welded end caps prevent entry of moisture and give a finished look
  • Sold in pairs for each side of the vehicle
  • Choose from black powder coat or polished steel
  • Designed to fit specific vehicle models
  • Easy bolt-on installation in factory positions with no drilling
  • Westin Automotive guarantees quality and performance for years
Cab length step bars

Cab length step bars

The Westin ProTraxx Cab Length Step Bars offer nothing short of quality and undefeated performance for years. The 4" oval tube is specially designed to not only make it more convenient for you to get in and out of your truck but also to add a rugged but luxurious look to your ride. They are easy to clean and maintain and are made strong to last years.

30° bends

30° bends

They feature 30° bends that give them a smooth curve which blends in well with the vehicle contour lines to give a well-transitioned and smooth look. It gets rid of sharp edges that are vulnerable points for rusting and also boosts your safety.

Injection molded step pads

Injection molded step pads

The step pads are injection molded for consistency and a smooth feel. They are textured to maximize traction so that you can step on and off the pads without slipping or sliding.

Welded end caps

Welded end caps

The Westin ProTraxx Cab Length Step Bars have welded end caps to prevent the entry of moisture and other damaging weather elements that may trigger rusting. The caps also give a smooth look that blends well with the car's angles.

Sold in pairs

Sold in pairs

They are sold in pairs - two in every set, one for each side of the truck.

Available in two finishes

Available in two finishes

The step bars are available in polished stainless steel and an e-coated black powder finish. Both finishes are guaranteed to look great on your vehicle - they meet OE specifications and will match your car's factory look.

Custom-fit design

Custom-fit design

The Westin ProTraxx Cab Length Step Bars are made for a custom fit in specific vehicle models. Click the blue button above and select your vehicle details to get this for your truck. Get in touch with us today if you need further help.

Easy no-drill installation

Easy no-drill installation

They are easy to install with no drilling. They are bolted in factory pre-drilled positions with the hardware that is provided with your purchase.

Manufacturer's warranty

Manufacturer's warranty

The step bars come with the manufacturer's warranty for performance and quality. Westin Automotive guarantees that your step bars are of the best quality and will give you the value and service you deserve for years. Get in touch with us today if you need any help with your warranty and we will assist where we can.

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Click here to view Westin's warranty.
Part Numbers

The following part numbers are available in this product line:

21-21310 21-21315 21-21330 21-21335 21-21400 21-21405 21-21680 21-21685 21-21950 21-21955 21-22770 21-22775 21-23240 21-23245 21-23250 21-23255 21-23290 21-23295 21-23310 21-23315 21-23510 21-23515 21-23520 21-23525 21-23550 21-23555 21-23560 21-23565 21-23580 21-23585 21-23700 21-23705 21-23710 21-23715 21-23720 21-23725 21-23830 21-23835 21-23840 21-23845 21-23850 21-23855 21-23860 21-23865 21-23930 21-23935 21-23940 21-23945 21-24000 21-24005 21-24010 21-24015 21-24020 21-24025

To purchase this product for your vehicle, please select the Year, Make and Model of your vehicle at the top of this page.

Chevrolet (2007-2018)

Colorado, Silverado 1500, Silverado 2500 HD, Silverado 3500 HD

Dodge (2009-2010)

Ram 1500, Ram 2500, Ram 3500

Ford (1999-2018)

F-150, F-250, F-250 Super Duty, F-350 Super Duty

GMC (2007-2018)

Canyon, Sierra 1500, Sierra 2500 HD, Sierra 3500 HD

Jeep (2007-2018)

Wrangler, Wrangler JK

Nissan (2016-2018)

Titan, Titan XD

Ram (2011-2018)

1500, 2500, 3500

Toyota (2005-2018)

4Runner, Tacoma, Tundra