1. Nerf Bars - Running Boards
  2. Westin
  3. Nerf Bars
  4. Silver
  5. 4 Inch Width
  6. Cab Length
Westin PRO TRAXX Oval Nerf Bars - 4" - Polished Stainless Steel

Westin PRO TRAXX Oval Nerf Bars - 4" - Polished Stainless Steel

Item # 21-23720
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Retail:$558.27
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Nerf Bars - Running Boards

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Westin Cab Length Nerf Bars - Running Boards - 21-23720
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The curved ends on these rustproof, polished stainless steel steps give your vehicle a streamlined look. Fully enclosed ends prevent internal corrosion. Top-mounted, non-slip pads provide sure footing and rugged style. Fastest Shipping and Guaranteed Lowest Prices for Westin PRO TRAXX Oval Nerf Bars - 4" - Polished Stainless Steel. Read our customer reviews of Westin nerf bars - running boards. Call 800-298-8924 for expert service or order your nerf bars - running boards part number 21-23720 by Westin online at etrailer.com.
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  • Reviews (71)
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Westin Nerf Bars - Running Boards - 21-23720

  • Westin
  • Nerf Bars
  • Silver
  • 4 Inch Width
  • Cab Length
  • Oval
  • Stainless Steel
  • Polished Finish
  • Fixed Step

The curved ends on these rustproof, polished stainless steel steps give your vehicle a streamlined look. Fully enclosed ends prevent internal corrosion. Top-mounted, non-slip pads provide sure footing and rugged style.


Features:

  • Custom-fit, cab-length, oval nerf bars make it easy to get into and out of your vehicle
    • Greater stability than narrower round bars
  • Seamless, domed ends with 30-degree bends deliver a finished, street-style look
    • Fully sealed ends keep out moisture
  • Wide, saddle-pad step areas provide sure footing
    • Raised tread makes it easy for shoes to grip the surface
    • Sturdy polymer plastic resists UV rays, fading, and cracking
  • Polished stainless steel is long-lasting and rustproof
  • Quick and easy bolt-on installation with included hardware
    • No drilling required


Specs:

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


Domed ends of silver bar

The PRO TRAXX oval step bars from Westin offer the best in both durability and rugged style. Rustproof stainless steel construction and sealed, domed ends work together to prevent internal corrosion. Top-mounted, saddle-pad-style step pads have raised tread for excellent grip and deep grooves that allow water to quickly and easily drain away.



21-23720 Westin Stainless Steel Oval Tube Steps with Wide Steps - ProTraxx Series - Polished - 4" Wide

Installation Details 21-23720 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Video of Westin PRO TRAXX Oval Nerf Bars - 4" - Polished Stainless Steel

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Westin PRO TRAXX Oval Nerf Bars Review

Speaker 1: Today we're gonna be taking a look at the Westin PRO TRAXX Oval Nerf Bars, in the polished stainless steel.Now this is what our nerf bars are gonna look like installed on the truck. As you can see, really nice, clean appearance. Typically when we get a call from a customer requesting nerf bars it's one of two things; either they want a little bit of help getting in and out of the vehicle, or they wanna improve the appearance of the truck.Now, the nerf bar kit is gonna be a full cab length design, so not only are we getting the step here on on our driver's door, it's gonna give us an area for the rear passengers to step out and on. They've got the polished stainless steel look, and each end has been turned in to kinda follow the contours of the vehicle and give it a nice, clean look. Now unlike the older nerf bars that we're typically round, these are gonna be an oval, 5" wide, nerf bar; that's gonna give us a lot more surface area.Now the steps themselves are also 5" wide, as you can see there's a nice flat surface here. The raised texture is gonna prevent our foot slipping side to side even if they might be wet.

Now the steps are constructed of a UV resistant polymer, so unlike the older style bars we're not gonna have the fading, the cracking, or deterioration that we used to.Another additional improvement that I really appreciate on these nerf bars, as compared to older style, is that we no longer have the plastic cap that just sits in the end. They've completely sealed both ends here, that prevents moisture from getting inside, and we won't have that rusting from the inside out that we used to get.Now, another thing you're really gonna like about these nerf bars is, it's gonna come with all the hardware and brackets that you're gonna need to attach it to the truck. There's gonna be no drilling or modifications of the truck required.And to begin our installation, you wanna grab one of your brackets; you're gonna have six of them, they're all identical, so they're all gonna go the same position. And we if we come from the wheel well, we wanna look for the first little tab that stick out with a hole in it. We're gonna use one of our clip nuts, we'll slide that up and on there.

We've got our M8 bolt, the lock washer and flat washer, that's gonna thread into the weld nut on the back side of the body. Then we wanna take one of our flange nuts, it's got the lock washer on it, and that's gonna thread into the bottom part of the bracket. Now we'll do that same thing for the middle position as well.Now, for the rear mount location, we wanna come back, this would be the back edge of the cab, be the first tab with the hole in it in front of that. You can see a larger hole here, with this small hole. We use the larger hole to get our clip nut in place, same thing here for the bottom, then we'll use the same style fasteners for both of those locations.

Now we're gonna snug each one of these down without fully tightening it, we still want a little bit of play in our bracket. Now, our lower bolts are gonna use a 12 mm, the upper bolts use a 13 mm.Now we'll position our step right up on our brackets. There are two nut inserts on the bottom at each of our bracket locations; we wanna line those up with the two elongated holes in our bracket, then we can thread in one of our cap head M10 bolts, and that should have a serrated lock washer on it, and a flat washer at each location. We're gonna do that for the two holes at each bracket.With all six of those in place, we'll finish snugging down our bracket bolts. Now we'll torque those to the specifications listed in our instructions.

Now you'll just wanna adjust your step; you can see we've got a little bit of movement room in there. So it's level, then we'll tighten down those cap head bolts. For these we're gonna use a 6 mm. Now you also wanna torque those down to the specifications in your instructions. Now once you've got your passenger side taken care of and all torqued down, you just repeat that exact same process for the driver's side.Now, with everything torqued down properly, that completes our installation of the Westin PRO TRAXX Oval Nerf Bars, in the polished stainless steel.


Customer Reviews

Westin PRO TRAXX Oval Nerf Bars - 4" - Polished Stainless Steel - 21-23720

Average Customer Rating:  4.6 out of 5 stars   (71 Customer Reviews)

The curved ends on these rustproof, polished stainless steel steps give your vehicle a streamlined look. Fully enclosed ends prevent internal corrosion. Top-mounted, non-slip pads provide sure footing and rugged style.

- 21-23720
by:

These fit my truck perfectly . Fairly easy installation. Just put them on today but seem to be of very good quality. 628187



- 21-23720
by:

I put these on in about 2 hours ,just took my time,very happy with them,and got them for a price cheaper then anyone else was offering.No slipping in wet weather and the keep there shine. Thanks etrailer. 614633



- 21-23720
by:
Chevrolet Silverado

The Westin Protraxx 4 nerf bars are a nicely made kit. The bars and brackets fit together very well in the factory rocker panel/sill location. All told when fully assembled, the kit looks nice and is very sturdy. It's a nice nerf bar kit. Just could use a few minor details corrected to make it a solid long term no-hassle installation. The only functionality issue I found with the bar kit is that it seems the placement of the front door tread plates seems a bit too far forward. When you put your feet down to get out of the truck, it feels like the tread should be about 6 inches further rearward for your foot to land on. Placing your foot on the smooth bar is dicey, especially if wet, so you definitely want to step on the tread plates. Getting into the truck on the driver side, seems like the tread placement works OK since you put your forward foot up to the bar first. Regarding assembly, it takes a bit of patience to get the brackets fitted into the proper locations and get the bolts started in the clip nuts. The hardware kit is a high quality collection of nuts, bolts and washers. However, I think the choice of button head socket screws for securing the bars to the brackets was for aesthetic purposes. The button heads are black zinc and shallow, smooth heads which limit exposure beneath the bar- a nice visual touch. But unfortunately the button heads are are FAR too easy to strip (the head, not the screw threads) when tightening them to the specified torque. Even with a brand new socket bit it was far too easy to booger the head when tightening them. So I chose to replace the button head screws after initial installation with common socket head screws (gray colored zinc-aluminum coated to help resist corrosion here in the rust belt midwest) and that'll avoid any major swearing should they need to be removed in the future. All the swearing is already taken care of now, after removing the stripped button heads with vise grips or a large extractor bit cut to size. One fitment issue I had with my kit ('17 Silverado Crew Cab) is that some of the plastic covers for the hanging brackets do not align with the holes in the brackets themselves. I think Westin updated their kit with revised front and rear end brackets but the plastic covers remain universal and properly fit only the middle brackets. I had to trim the plastic covers with a razor knife in order for the mounting holes to work well. Without trimming, the plastic covers would interfere with the bracket and therefore they would not mount evenly on the bracket. Not a big deal to do. Just shouldn't be necessary. As the instructions clearly state, you definitely need to occasionally treat the polished stainless with some wax or metal polish. Over time the bright finish will dull (and scratch- another reason not to step anywhere except the tread plates) and and show pinpoint rust spots. Yes, stainless actually rusts when it encounters nasty stuff like road deicing salt. 539543



- 21-23720
by:

Installed easy and look good. Have had 1 year vehicle garage kept low miles no signs of deterioration. 587669



- 21-23720
by:
2018 Chevrolet Silverado 1500

My product arrived 2 days earlier than expected, everything I needed to install my running boards was in the box, I also watched the video on how to install the running boards, it was very easy to follow. I would recommend this product to my friends or anyone, and by the way Shawn was very helpful polite and knowledgeable about the product, Thanks for everything 492784



- 21-24015
by:

Review from a similar PRO TRAXX in Nerf Bars - Running Boards


Great product, after one year still looking good! 477710



- 21-24025
by:

Review from a similar PRO TRAXX in Nerf Bars - Running Boards


all parts there but not marked correctly- easy to install 641710



- 21-23710
by:

Review from a similar PRO TRAXX in Nerf Bars - Running Boards


Other than having a little problem getting one bolt started the nerf bars went on easy and look good. Shipping was real fast. 561075



- 21-23715
by:

Review from a similar PRO TRAXX in Nerf Bars - Running Boards


I love the super fast and free shipping from etrailer. Already referred them to a couple of work friends that are looking for accessories. As for the nerf bars, not exactly the quality that I would have hoped for but, comparing price/quality, I have to go with 5 stars. I could have spent a lot more. They look great on the truck and only time will tell how they hold up. Westin has never failed me and neither has etrailer. 727337



- 21-53560
by:

Review from a similar PRO TRAXX in Nerf Bars - Running Boards


Very nice and fit great. On my 2017 Ram 1500 SLT crew cab, it was easier to install the Westin black covers on the brackets before installing them on the rocker panels. I suggest going over the install booklet and organize all the bolts, nuts,washers and brackets in the proper order to driver -passenger side. Thanks! 515496



- 21-534320
by:

Review from a similar PRO TRAXX in Nerf Bars - Running Boards


Fits good looks great 636555



- 21-53710
by:

Review from a similar PRO TRAXX in Nerf Bars - Running Boards


Very poor quality. Product is starting to show signs of cracking. Plastic pad area is coming off. I would never use Westin products again 659628



- 21-23715
by:

Review from a similar PRO TRAXX in Nerf Bars - Running Boards


they installed as simply and accurately as stated. I would recommend the kit that installs directly to avoid any drilling. I haven't slip once stepping up and find it very helpful getting into the truck. 588476


Comments
they function as good as the first day they were installed.
William - 12/06/2019

63693

- 21-21315
by:

Review from a similar PRO TRAXX in Nerf Bars - Running Boards


This product is everything that we ask for, it was very easy to install and added a good look to the truck,it was delivered when scheduled and this is a good example that sometimes you can get a good product without spending a fortune, thank you etrailer and keep up the good work....... Thanks a million 175677


Comments
After a year and a little bit of abuse the product still looks like new, I really didnt think that would be so durable, its amazing. I have an F 350 7.3 Diesel and I really use it, Im a sportsman so get a lot off the beaten path, Mud, Snow,ice and other stuff are common beneath the truck, but just some water with the hose and its new again, best purchase ever. Thanks etrailer for the good parts....
Hugo F - 02/23/2016

16879
Comments
After a year and a little bit of abuse the product still looks like new, I really didnt think that would be so durable, its amazing. I have an F 350 7.3 Diesel and I really use it, Im a sportsman so get a lot off the beaten path, Mud, Snow,ice and other stuff are common beneath the truck, but just some water with the hose and its new again, best purchase ever. Thanks etrailer for the good parts....
Hugo F - 02/23/2016

16881

- 21-23295
by:

Review from a similar PRO TRAXX in Nerf Bars - Running Boards


Installed one year ago on my 2015 Jeep Rubicon Wrangler Unlimited. Installation was simple, with the exception of one thing. To install the step you must permanently remove the "rock sliders" with leaves the bottom seam of the body exposed. The steps still look in newish condition, except for the color (now dark gray) which has caught up with all the black plastic on my Jeep, thanks to the AZ sun. The rubber tread can be slick when wet. 654706



- 21-23560
by:

Review from a similar PRO TRAXX in Nerf Bars - Running Boards


Approximately one year ago I purchased a pair of polished stainless steel Westin PRO TRAXX 4-inch Oval Nerf Bars to install on my new 2016 Ram 1500 Laramie Quadcab. The product came with mounting instructions which made the installation process very easy. Subsequently, many compliments have been received on these nerf bars as to how the polished stainless steel enhances the appearance of the truck. Accordingly, I am very happy with these nerf bars and would recommend same to anyone. 399666


Comments
Still very happy with the product. Get at least one complement a week, Never a problem with this product. Thank you etrailer.com .
Robert S - 06/27/2018

40239

- 21-24015
by:

Review from a similar PRO TRAXX in Nerf Bars - Running Boards


I got my Running Boards and they fit my truck prefect they install easily and they look Great Thanks for a Great product and a Great Prices all my friend I have show them and they all say that they made my truck so Thanks again I will be getting other items for my truck 633718



- 21-53560
by:

Review from a similar PRO TRAXX in Nerf Bars - Running Boards


Very very easy to install. Totally improved the look of my truck and of course it's much easier to get in and out of the truck. 477583



- 21-53565
by:

Review from a similar PRO TRAXX in Nerf Bars - Running Boards


These are nice looking, affordable entry steps. Shipping was as expected and had a couple minor blemishes when all was said and done. The directions were less than clear and skipped around a bit for me. They seem solid and hopefully they will last awhile. 592922



- 21-23555
by:

Review from a similar PRO TRAXX in Nerf Bars - Running Boards


One year after installation and these step bars still look good. No visible rust on the steps, brackets or hardware. I frequently drive down a long dirt road to a relatives house and the paint is holding up great. These steps help the wife get in while not being too low as to affect ground clearance much. Overall a good purchase and transaction with etrailer.com. 256600



- 21-23935
by:

Review from a similar PRO TRAXX in Nerf Bars - Running Boards


Truck running boards arrived on time just like they said 3 to 5 days. Where easy to install, but one had a dent in it.It was on the bottom so it won't show. I think it was done by rough shipping, the shipping box was kind of tore up. So it was'nt etrailers fault. Overall was pleased with product. 306530



- 21-23565
by:

Review from a similar PRO TRAXX in Nerf Bars - Running Boards


Order arrived a day early and in perfect shape, awesome customer service!! I wanted a bar that didn't stick out to far and this is exactly what I was looking for. The bars have a nice clean look to them, great welds and very sturdy. I especially like the plastic inserts that hide the mounting brackets. It gives it more of an oem finished look. I watched the install video a few times on etrailer and it made the install very easy. I have to say, if you had to go by the instructions included, it would be a little confusing. With the video, it was clear and very easy. Couldn't be happier with the product and service. 522206



- 21-23725
by:

Review from a similar PRO TRAXX in Nerf Bars - Running Boards


Easy to install and looks good. Only thing passenger side has 3 small dings right in middle of it. (Top). 465303


Comments
Still looking good. No fading or issues
Heath M - 01/06/2019

48270

- 21-23945
by:

Review from a similar PRO TRAXX in Nerf Bars - Running Boards


I am very happy with the nerf bars. The package was missing 2 lock washers but I had some that fit so it was not a huge issue. Installation was easy. I installed them in a couple of hours. They look great on my truck and make it much easier for my family to climb in and out. I have purchased other products from etrailer (a bike rack and a hitch basket) and they were fantastic also. In my opinion this is a good company with good products and service. 611352



- 21-24015
by:

Review from a similar PRO TRAXX in Nerf Bars - Running Boards


I ordered the bars on Friday and received them at my door on Saturday. Granted etrailer is only about 70 miles from me. The bars were super easy to install thanks to the installation video in the item details on this site. And I think the bars look great and feel very solid. This wasn't my first purchase from etrailer, and definitely won't be my last. 585238


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Info for this part was:

Edited by:
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Expert Research:
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Expert Research:
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Video Edited:
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Video Edited:
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Video by:
Kathleen M
Test Fit:
Randy B
Test Fit:
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Written by:
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Updated by:
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Updated by:
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