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  1. Nerf Bars - Running Boards
  2. Aries Automotive
  3. Nerf Bars
  4. Black
  5. Cab Length
  6. 4 Inch Wide
THIS ITEM IS NOT A FIT FOR
2021 Audi S5
Aries Automotive

Aries Oval Nerf Bars - 4" Wide - Black Powder Coated Steel

Part Number: AAS224045
51 Reviews | 1 Questions
In Stock
$290.42
Retail:$451.95
You Save: $161.53
 Nerf Bars - Running Boards
1 used item available at $142.82
Not Confirmed to Fit

2021 Audi S5

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aries automotive nerf bars - running boards oval steel aas224045
aries automotive nerf bars - running boards oval 4 inch wide black powder coated steel
aries automotive nerf bars - running boards oval gloss finish
aries automotive nerf bars - running boards gloss finish oval 4 inch wide black powder coated steel
aries automotive nerf bars - running boards oval gloss finish aas224045
aries automotive nerf bars - running boards oval
aries automotive nerf bars - running boards gloss finish aas224045
aries automotive nerf bars - running boards steel oval 4 inch wide black powder coated
aries automotive nerf bars - running boards steel

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Custom-fit, oval nerf bars have extra-wide, non-slip step pads that let you easily enter and exit your vehicle. Fully sealed ends with 20-degree bends offer a finished look and prevent internal corrosion. Constructed of rustproof carbon steel. Fastest Shipping and Great prices for Aries Oval Nerf Bars - 4" Wide - Black Powder Coated Steel. Read our customer reviews of Aries Automotive nerf bars - running boards. Call 1-800-940-8924 for expert service or order your nerf bars - running boards part number AAS224045 by Aries Automotive online at etrailer.com.
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Aries Automotive Nerf Bars - Running Boards - AAS224045

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

Custom-fit, oval nerf bars have extra-wide, non-slip step pads that let you easily enter and exit your vehicle. Fully sealed ends with 20-degree bends offer a finished look and prevent internal corrosion. Constructed of rustproof carbon steel.


Features:

  • Custom-fit, cab-length, oval nerf bars allow you to safely enter and exit your vehicle
    • Greater stability than narrower round bars
  • Raised, extra-wide step pads ensure confident footing
    • Slip-resistant, textured surface provides excellent traction even when wet
    • Polypropylene construction resists UV damage and cracking
  • Seamless, blended ends with 20-degree bends offer a finished appearance
    • Welded ends keep out moisture and grime to prevent internal corrosion
  • Carbon steel with semi-gloss black powder coat finish is resistant to scratches, chipping, and rust
  • Easy bolt-on installation with carbon steel mounting brackets
    • Hardware included - no drilling required


Specs:

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


Aries 4 Inch Oval Nerf Bars

The durable and stylish Aries 4" oval nerf bars have extra-wide, non-slip step pads that allow you to enter and exit your truck's cabin with confidence. The bars are constructed of rustproof carbon steel with welded ends that help to prevent internal corrosion.


The nerf bars install quickly and easily with custom-fit mounting brackets. The carbon steel brackets mount to pre-existing holes in your vehicle's frame - no drilling required. Each side bar fits the contour of your specific vehicle to ease installation and improve functionality. The top-mounted step pads are also customized to match the layout of your truck cabin's doors.



S224045 Aries Automotive Carbon Steel Oval Tube Steps with Wide Steps - Semi-Gloss Black Powder Coat - 4 Inch Wide

Installation Details AAS224045 Installation instructions

This Product Fits The Following Vehicles






Customers Who Purchased This Nerf Bars - Running Boards Also Bought...





Customer Satisfaction Score:

Ratings & Reviews

4.7

51 reviews
5 Stars
(38)
4 Stars
(11)
3 Stars
(2)
2 Stars
(0)
1 Star
(0)
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by:
Easy peazy to put on, glad you ship to Alaska.
by:
chevrolet Silverado
These custom fit Nerf bars fit perfectly to the 2026 Silverado 2500. The color also complemented the color of my truck. And as always, the customer service at etrailer was top-notch.
Russell profile picture

Russell

10/4/2026

The product is holding up great. Looks as good as the day I installed.

Jerred H. profile picture
Etrailer Expert

Jerred H.

10/4/2026

@Russell That's great to hear Russell! Thanks for coming back and letting us know.
by:
2008 toyota FJ Cruiser
Super easy to install, and a nice finish that looks great on the FJ.

My FJ is a 2008 which had not previously had running boards, but had been undercoated several times over the years. I used a matching tap to first clean the threads in the factory mounts so the bracket mounting bolts could easily be installed. Total install time was about 90 minutes.
Thomas profile picture

Thomas

5/19/2026

A year later and these need bars still look great and function perfectly as a step my wife uses to make it easier to get up into the FJ.

by:
Every thing fit right on the money. About an hour to do the job by myself. Take off the original and replace with the new. Had a little problem with the shipping at first but all the people at etrailer stepped up to the plate and got it straightened out quick. The running boards look good on the truck also.
by:
chevrolet Silverado
Im a little apprehensive when ordering from new vendor but due diligence revealed etrailer had a good reputation and better than some other places I looked at ordering the same steps. Order went without a hitch and it wasn't long before my pkg arrived relatively unscathed.
The bars appear to be good quality steps with one minor ding below the pad on the driver side that was obviously done at the factory and shipped out. I don't think anyone will notice but me so I kept the bars and got busy with the installation. The directions are OK but could be better. It didn't take long to get the mounts installed first then the bars and tightened everything up to factory specs. I waxed the bars following the recommendation on the instruction sheet and they look great on my glacier blue Silverado. The finish is pretty much a satin finish which works for me.
by:
So much easier to get in my SUV. Looks good and not hard to install.
by:
Great alternative to running boards that clamp on to the body sheet metal.
by:
These nerf bars were well packaged, and arrived quickly. I actually followed the instructions, and they were simple to install.
I re-orqued the bolts after 500 miles, and double check them after my oil changes. They still look great, and function well. The only "downside", if there is one, is the way a puddle resonates splashing against the metal tubes. Just took us a little bit to figure out what was causing the sound. Sealed tubes, so I can't easily install baffles, but the sound really is not an issue.
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by:
2026 Chevrolet Colorado
Fit was perfect. I'm glad I selected the 4" bars. The only complaint was the instructions. The photos were not much help, so we eventually figured it out. Look good and work good. Nice value.
by:
They were easy to install make truck look great !!!
Far as use awesome , the drop step makes it really nice for getting in and out of truck !!!
by:
The bars look great on the truck and they seem very sturdy. I was disappointed they arrived with some dents in them. The black color looks great with the black rims on the white truck! I thought about getting step down boards and now I’m so glad I get these instead!
by:
This is how you do it- I cancelled an order with another company Wednesday for some nerf bars ( after a week they said August), I found what I wanted and ordered from etrailer Wednesday and was delivered Friday and installed within a hour! Impressed!
Brooke M. profile picture
Etrailer Expert

Brooke M.

7/7/2025

That is how it should work! So glad that everything went smoothly and you were able to get the bars on way sooner :) Do you have any photos of the finished product you'd want to add to your review? If you email them to me, I can post them

by:
Exactly as advertised.
by:
Great product, Easy to install and customer service was great to work with. I would use this company again.
by:
2025 Toyota Tacoma
Well, it was my first time installing Nerf Bars. I studied the instructions, and for a half hour or so........was this complicated? Then I started to install, and man-o-man, it was EASY once I got into it. The Aries Oval Nerf Bars are excellent on my new truck. You guys where great, what with keeping me informed of where and when the nerf bars would be delivered. I am very glad I got them from you!!!!!!!!!!!!
by:
2025 GMC Sierra 1500
Great product, easy install.
by:
It fit perfectly and made my truck look great
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by:
2008 Ford F-150
I've had these nerf bars and they have been great. They were very easy to put
onto my 2008 F150. My wife said that they've been great for her when she has a
skirt on to get into the pickup easier.
by:
The package was delivered quickly but was surprised how badly UPS tore up the package in only 90 miles. Hate to see what it would be like going across country. Nothing damaged though. Installation was super easy and the nerf bars look great. Very happy with them.
by:
One year and about 18,000 miles with the bars installed. Finish still looks as good when installed. They look great and are functional.
by:
These have held up well. They sit a little close under the doors. With doors closed it is tight with boots on. Couple of the brackets were mislabeled for where they mount to. Led to an additional 30 mins trying to figure out what was going on. Good product for the price.
by:
Even though e trailer didn't have my black step rails in stock, they were able to arrange quick delivery direct from the manufacturer. No wait time at all. Obviously very organized company.
by:
Great product...year later running boards still look great and my wife has a much easier time getting up into our truck. Thanks!
by:
Packing material showed signs of abuse. Many small scratches and digs in the paint. Product seems to be made of quality materials and installation was easy as advertised. Fit was very good. The damage was due to improper handling by the shipper. Overall I it give 4 stars only because of careless handling.
by:
2024 Chevrolet Colorado
The Aries Oval Nerf Bars are a great product. They look great and are really functional. Easy to install!!
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See what our Experts say about this Aries Automotive Nerf Bars - Running Boards

Do you have a question about this Nerf Bars - Running Board?
  • Replacement Mounting Hardware for Aries 4" Oval Nerf Bars # AAS224045
    If you have the Aries 4" Oval Nerf Bars # AAS224045 or the Stainless Steel model # AAS224045-2, the correct replacement hardware kit is the part # AABRKT-SS24045 . This kit includes the mounting brackets and installation hardware. Just the install hardware (bolts, washers, etc) is not available by itself from the manufacturer so this would be the only way to obtain these parts for your nerf bars.
    view full answer...

Used Items Available
Image of AAS224045

Condition: Surface Scratches

Notes: Item has minor cosmetic scratches/dings and is missing the installation kit which can be purchased on the site.

$142.82
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Info for this part was:

Employee Tyler C
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