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  1. Nerf Bars - Running Boards
  2. Westin
  3. Nerf Bars
  4. Black
  5. Cab Length
  6. Fixed Step
Westin Platinum Series Oval Nerf Bars - 4" - Black Powder Coated Steel

Westin Platinum Series Oval Nerf Bars - 4" - Black Powder Coated Steel

Part Number: 21-1955
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You Save: $168.06
Nerf Bars - Running Boards

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Westin Oval Nerf Bars - Running Boards - 21-1955
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The curved ends on these black powder coated step bars give your vehicle a streamlined look. Footpad areas are recessed, rather than cut out, preserving the strength of the steel and providing a solid, rustproof step into your truck. Fastest Shipping and Great prices for Westin Platinum Series Oval Nerf Bars - 4" - Black Powder Coated Steel. Read our customer reviews of Westin nerf bars - running boards. Call 1-800-940-8924 for expert service or order your nerf bars - running boards part number 21-1955 by Westin online at
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  • Reviews (116)
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Westin Nerf Bars - Running Boards - 21-1955

  • Nerf Bars
  • Black
  • Cab Length
  • Fixed Step
  • 4 Inch Wide
  • Steel
  • Westin
  • Oval
  • Gloss Finish

The curved ends on these black powder coated step bars give your vehicle a streamlined look. Footpad areas are recessed, rather than cut out, preserving the strength of the steel and providing a solid, rustproof step into your truck.


  • Cab-length, oval nerf bars make it easy to get into and out of your vehicle
    • Greater stability than narrower round bars
  • Curved ends of step bars give a finished, street-style look
  • Non-slip step pads sit in recessed tube areas instead of cutouts
    • No holes in tubing means maximum strength and durability with no internal corrosion
    • Sturdy polymer plastic construction resists UV rays, fading, and cracking
  • Mild steel with black powder coat finish is long-lasting and rust resistant
  • Mandrel bending at corners eliminates creases in tubing
  • Custom fit for your vehicle
  • Quick and easy bolt-on installation with included hardware
    • No drilling required


  • Tubing width: 4"
  • Step pad width: 4"
  • Step pad quantity: 2 per bar
  • Quantity: 2 nerf bars
  • 3-Year warranty

The step pad areas in Westin's Platinum Series oval nerf bars are indented instead of cut out, maintaining the structural integrity of the steel tubing and preventing internal corrosion. 90-Degree mandrel bending at the corners means that there are no creases in the bars. This minimizes the chances of chips and rust at the bends and makes for sleeker, better-looking step bars.

U-Style Tube Steps

As shown in the image above, these step bars have a U-style tubing, which ensures that each bar conforms perfectly to your vehicle. Installation is quick and simple - just bolt the mounting brackets to existing holes in your truck's frame. No drilling is required.

21-1955 Westin Mild Steel Oval Tube Steps with Wide Steps - Platinum Series - Black Powder Coat - 4" Wide

This Product Fits The Following Vehicles

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Westin Platinum Series Oval Nerf Bars - 4" - Black Powder Coated Steel - 21-1955

Average Customer Rating:  4.6 out of 5 stars   (116 Customer Reviews)

The curved ends on these black powder coated step bars give your vehicle a streamlined look. Footpad areas are recessed, rather than cut out, preserving the strength of the steel and providing a solid, rustproof step into your truck.


Very well built. Replaced a pair of Westin nerf bars that were 20 years old. Very easy to install. Well worth the money. I have always liked Westin products. Etrailers always delivers no matter what you need!

2013 Chevrolet Silverado

Look nice. Easy installation. The instructions were a little vague.


This is my third purchase of this type of nerf bar step system and they have proven to be rugged and very functional in Wyoming’s back country and temperature extremes. I ran into a bit of difficulty with this set as one of the nerf bar center supports was incorrectly located. etrailer’s Ashley helped resolve and shipped a replacements. Fantastic customer service as always.!


Great steps for a great price!


Packaged very well! Easy install! Looks great on customer vehicle! The hardest part was getting the factory bolts out!! Install was done in about 20 minutes! Thanks for a great product, would recommend to anyone!!

2003 Chevrolet Silverado

Great product and fast delivery.


These replaced a set of bars where the pads had deteriorated and cost of replacement was about the cost of new nerf bars. The nerf bars came very very quickly, three days after order. All parts were there, bars looked good, however there was an imperfection in the oval pipe near one of the step pads a small indention. No issues with the box it came in, so my assumption it was during manufacture or warehousing. Not enough of a problem to send back, but it was there non the less. Other than that installed easy, once all tools were gathered, 1st side took 30 minutes 2nd side took less than 15 minutes. My concern is the powder coat may not be durable, and might scratch easy, time will tell. I will probably only have my 2006 Sierra for a couple of more years.

Etrailer Expert

Sierra K.


Thanks for your review. Next time if you only need to replace the step pad, we sell replacement pads. I will attach the link. Just make sure you count how many pegs your pad has so you can determine the right replacement. As for the black powder coat, you can touch up scratches with some outdoor spray paint.


Very easy to install! They definitely made a difference in getting in and out of the truck. They look good too!


2012 Chevrolet Silverado

2004 GMC Sierra


2012 Chevrolet Silverado


Installed on 2018 Tacoma sport. Unfortunately, it arrived with a ding in the passenger side bar. It was very disappointing, but by the time I saw it (I should have thoroughly checked both bars before starting install), I had already installed the driver’s side. I said, to heck with it and didn’t bother with a return.

It was an extremely easy install with quick delivery and overall, they look great. Now, I don’t have to haul myself up into my Tacoma. The step inserts are basically a heavy duty plastic. I figure if they are slippery, I can spray them with a propert texturing coating. At some point, I’ll probably also texture/ mat spray the bars themselves since they’re gloss finish.


Fit and fastener alignment was good. Easy installation. Pleased with product quality.


Excellent product. Looks great on my vintage 2004 Silverado. Easy installation once I CAREFULLY removed the body mount bolts. Only suggestion would be to include the torque specs for the body mounting bolts for reinstallation.


These Nerf Bars are just what my truck needed! They look awesome and were a cinch to install. Customer service is also great and I can’t say enough about the ETRAILER web site. Will definitely use them again!!


The step/bars look good. Install wasn't tough but Westin's instructions are poor- I just figured it out on my own.

While the packaging looked stout, 3 of the 4 open bar ends were bent in, like someone dropped the box on both ends. I did a decent job of banging the dents out and installed them. Those ends aren't seen once installed. Someone needs to look at a better way to protect them during shipping.

Overall I'm just satisfied with the product.


Product is as described. Installation was not complicated and easily done by one person. Fit perfectly on my 2018 Ram 3500. Install tip: duct tape is your friend when you fumble one of the nut holders into the frame. That will slow you down. :-)


These Western tube steps fit my 2013 Silverado Reg. cab perfect, even with the DEF tank.
Installed quickly, and look great.
Thanks Chris W. at


I am very happy with these running boards. They are just the right width for easy use. They are solid, and they installed easily on my Tundra. I would buy these again if I had it to do over.


Installed the Westin 21-3610 4 in oval SS step bars on my 2015 Jeep GC Summit.Hemi California edition - perfect fit. See photos. After 2014 Jeep uses 12 mil plastic stickers instead of the rubber plug caps for the oval cutouts as called out in the Westin install procedure - use a small wood chisel to remove the cover stickers carefully.


Excellent product and great value. Installation of the brackets and bars were simple and did everything myself. Bars are lightweight, but very sturdy and robust. The plastic steps are rather heavy duty and not loose. The 4 inch diameter is the perfect size for my needs: doesn't stick out far like most running boards and not too small to where my feet wouldn't get good purchase on a step.
The bars weren't has curved inward under the body as advertised. The pictures show these bar curve in a lot, but the bars I got only had a slight bend at the ends. If you've got front mudguards, the bar will touch the guard; it wont actually put pressure or bend the mudguard, but just touch it. Despite the inaccuracy of the pictures, it turned out well as the mudguard would interfere with a fully curved in bar. It still looks sleek. There really isn't much of a gap between the bars and body, the bar isn't low so my ground clearance isn't compromised.
Overall, great bars that look great and function well.


It just was delivered today. I want be able to write a review until I get them installed.
Price was good and shipping was very fast.


Good product but did not fit my 2019 F150 with 6'7" bed as claimed by Westin. I was able to get them on, but, they did not go over the stake pockets as they are supposed to. I notified etrailer of the issue and they quickly accepted a fully refunded return … even though I had installed them. Hopefully the product listing on the website was corrected so that no one else will get them in error. KUDOs to the etrailer folks for working with me on this!!

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