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  1. Nerf Bars - Running Boards
  2. Westin
  3. Nerf Bars
  4. Black
  5. Cab Length
  6. 4 Inch Wide
THIS ITEM IS NOT A FIT FOR
2017 Mini Cooper
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Westin

Westin PRO TRAXX Oval Nerf Bars - 4" - Black Powder Coated Steel

Part Number: 21-24015
In Stock
$257.49
Retail:$468.75
You Save: $211.26
Nerf Bars - Running Boards
Not Confirmed to Fit

2017 Mini Cooper

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Westin Nerf Bars - Running Boards - 21-24015
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The curved ends on these rust-resistant black powder coated 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 Great prices for Westin PRO TRAXX 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 21-24015 by Westin online at etrailer.com.
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  • Reviews (269)
  • Q & A (0)
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Westin Nerf Bars - Running Boards - 21-24015

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

The curved ends on these rust-resistant black powder coated 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
  • Mild steel with black powder coat finish resists rust
  • 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
  • 3-Year warranty


Domed ends of black bar

The PRO TRAXX oval step bars from Westin offer the best in both durability and rugged style. Sturdy, black powder coated 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.



21-24015 Westin Mild Steel Oval Tube Steps with Wide Steps - ProTraxx Series - Black - 4" Wide

Installation Details 21-24015 Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:

Ratings & Reviews

4.7

269 reviews
Review sort icon
The curved ends on these rust-resistant black powder coated 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.

by:

Easy install



by:

Great product, after one year still looking good!



by:

The nerd bars arrived in good condition,were easy to install and compliment the looks of my Chevrolet Colorado. Very satisfied with this purchase.



by:

After a year these still look like new and winters are usually harsh on everything with road salt. They installed so easily, directions were good and all the holes are already in most newer vehicles, so if you can tighten a bolt you can install them in minutes!



by:

Arrived quickly. Fits really well.
Looks
great!

Michael profile picture

Michael

11/6/2022

Yes, my Nerf bars are great! Installation was pretty easy by myself. Strong sturdy. Still look brand new. Highly recommend them.



by:

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



by:

great product, easy installation. looks great on wifes truck. being short , she needed a step to get in . flows nice with the truck body lines. I think the 3;; would have been too narrow . so glad I chose this one.



by:

Once again I received great service from etrailer and the Nerf Bars arrived on time. They fit my 2022 Colorado perfectly, are sturdy and look great.



by:

So happy with my purchase! My husband installed them and they look great! Love the sale price and the free shipping!



by:

This was a nice easy to install addition to 2018 GMC Canyon.
It took about 90 min. to install only b/c it was getting dark.
Shipping was pretty quick too !

Robert profile picture

Robert

9/25/2021

Everything still looks great type no issues good product



by:

Very nice running boards & fast shippin g!



by:

Very happy with the finished product, but the installation had a glitch. When torquing the black cap bolts that mount the nerf bar to the brackets attached to the body, most of the cap heads stripped out. They would not take the torque. After six or eight of the bolt heads stripped, I just tightened them with a hex wrench. IMHO, hex head bolts would be a better application for the cap head bolts.



by:

Really Nice, only took me hour and a half. Easy assemble. Boards are Nice and solid.



by:

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.



by:

Easy install, looks great. Videos are helpful for installing



by:

It takes more than 35 minutes to 1 hour for 1 person to install,as was quoted.



by:

Westin Pro Traxx nerf bars are nice and very easy to install. Looks great on the truck.



by:

very easy to install and look great. took me about an hour. saves wear on seat by not having to slide across to get in or out. black bars looks really good on this truck . 2021 chevy colorado crew cab.



by:

Pro Traxx 4 in. Nerf step bars easy installation 2 1/2 hours not bad time for someone that’s 77 years old they work good and look good.



by:

The Westin Pro Traxx bars were a perfect fit for my truck. Called and spoke with Joshua just to make sure and he was excellent help. Installed on 2026 Chevy Colorado ZR2 and they look great. Shipping time was amazing arriving 2 days after order. Was so happy with company i ordered bed cover as well



by:

etrailer did wonderful. The only issue I had is who you use for shipping UPS they are terrible. You may want to consider FedEx in the future. I’ve had much better experiences with them.



by:

Super fast shipping, well packaged, and had the best price anywhere. I'll definitely be back for all my vehicle needs. Thanks!



by:

Great nerfs! Easy install and they look fine on my 19 Colorado. The price was right and etrailer under-promised and over delivers with fantastic shipping! I am 73 years old and had them install with no hoist in an hour and a half. Simple tools and follow the directions for a great install.

David profile picture

David

8/31/2020

Great! I love them!



by:

I got everything and there was no damage.They look good on my truck.Thanks

Gwendolyn Y. profile picture
Etrailer Expert

Gwendolyn Y.

4/4/2025

I bet they do! If you ever want to email us some pics of your truck, I'd love to see them!

Mitchell profile picture

Mitchell

8/1/2026

Very well I’m loving them

Heather A. profile picture
Etrailer Expert

Heather A.

8/1/2026

@Mitchell I love to hear that Mitchell! What truck do you have these on?


by:

The Product sames to be pretty sturdy.Delievered friday 06/12/26 and I installed it Saturday.Pretty simple installation, and all the parts were there, nothing missing.It will help getting in and out of the truck, and matches color of my truck.(champagne and black accents).
I got it and the box was reaped opened on one end scratches on one of the
bars,but I think it will be OK with a little touch up paint.Over all I am Happy with it, thanks


25
25

See what our Experts say about this Westin Nerf Bars - Running Boards

  • Will Westin PRO TRAXX Oval Nerf Bars Fit 2020 Chevrolet Colorado ZR2
    Hey Daniel! The Westin PRO TRAXX Oval Nerf Bars # 21-24015 won't have any issues fitting your 2020 Chevy Colorado ZR2. Westin has confirmed that these are compatible with ZR2 models so you're all set as long as you have the Crew Cab. Are you mainly looking for easier cab access, or more of a rugged look for the truck?
    view full answer...
  • Will Westin PRO TRAXX Nerf Bars Fit 2022 Chevy Colorado ZR2 Crew Cab
    The correct 4" Westin PRO TRAXX Oval Nerf Bars for your 2022 Chevy Colorado ZR2 with the Crew Cab is found as part # 21-24015 on our site. I reached out to my contact at Westin and they were able to confirm that the ZR2 fitment is no issue with this kit. Attached is an installation video of this kit on a 2021 Colorado for you to check out!
    view full answer...
  • Recommended 2018 Chevy Colorado WT Crew Cab Running Board or Nerf Bar Step
    There are many different options for running boards or nerf bars for your 2018 Chevy Colorado WT Crew Cab. I've linked the page to all your options, but I've also singled out some recommendations for you. For a blacked out look, I recommend the Westin PRO TRAXX Oval Nerf Bars # 21-24015. For polished stainless, I recommend the # 21-54010 with the thicker step. For an easy step, I recommend the Aries ActionTrac Motorized Running Boards with Custom Installation Kit - LED Lights # AA3047904....
    view full answer...
  • Will the Replacement Mounting Brackets # 21-240PK Fit My 2018 Chevy Silverado 1500?
    The Replacement Hardware # 21-240PK will only fit Westin PRO TRAXX Oval Nerf Bars # 21-24015 and # 21-24010. Unfortunately, these nerf bars are not designed to fit any 2018 Chevy Silverado 1500 models (including Z71). With that being said, there may be replacement hardware available that are designed to fit with your 2018 Chevrolet Silverado 1500 like the Replacement Mounting Hardware for Aries 4" Wide Oval Nerf Bars # AABRKT-S224046. These brackets, even though they will fit your 2018...
    view full answer...
  • Will the Westin Pro Traxx part # 21-24015 fit my Crew Cab Colorado with Mud Flaps
    Yes the Westin PRO TRAXX Oval Nerf Bars - 4" - Black Powder Coated Steel part # 21-24015 is a confirmed fit for your crew cab 2020 Chevrolet Colorado. The mud flaps will be ahead of the running boards slightly so there will be no interference. Check out the linked video to see the positioning of them
    view full answer...
  • Will Westin Nerf Bars Fit 2016 Chevrolet Colorado Diesel Crew Cab
    The Westin Nerf bars, part # 21-24015 that you asked about will fit all models of the 2016 Colorado crew cabs. These are 4-inch wide Black powder-coated steel bars and require no drilling for installation.
    view full answer...
  • Replacement Hardware for Westin PRO TRAXX Oval Nerf Bars on a 2019 Ram 1500
    The Replacement Hardware kit # 21-240PK that you referenced is actually replacement hardware for Nerf Bars # 21-24010 and # 21-24015 which fits 2015 - 2019 GMC Canyon Crew Cab and 2015 - 2019 Chevrolet Colorado Crew Cab pickups. For your 2019 Ram 1500 you would need Replacement Hardware Kit # 21-2408PK which is for the Westin PRO TRAXX Oval Nerf Bars # 21-24080 and # 21-24085. If you happen to have a 2019 Ram 1500 Classic then the correct Replacement Hardware is part # 21-2356PK which...
    view full answer...

Do you have a question about this Nerf Bars - Running Board?


Info for this part was:

Employee Leah B
Edited by:
Leah B
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee John S
Video Edited:
John S
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Randy B
Installed by:
Randy B
Employee Mary K
Written by:
Mary K
Employee Wilson B
Updated by:
Wilson B
Employee Jessie B
Updated by:
Jessie B
Employee Michael B
Updated by:
Michael B
Employee Isabelle B
Updated by:
Isabelle B
Employee Zach D
Video by:
Zach D
Employee Robert C
Test Fit:
Robert C
Employee David F
Test Fit:
David F
Employee Ryan G
Test Fit:
Ryan G
Employee Adam E
Test Fit:
Adam E
Employee Kurt W
Test Fit:
Kurt W

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