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  1. Nerf Bars - Running Boards
  2. Ram
  3. 3500
  4. 2021
  5. Westin
FITS 2021 Ram 3500
Westin Platinum Series Oval Nerf Bars - 4" - Polished Stainless Steel

Westin Platinum Series Oval Nerf Bars - 4" - Polished Stainless Steel

Item # 21-3540
Retail:$669.60
Our Price: $375.52
You Save: $294.08
Nerf Bars - Running Boards
Confirmed to Fit
2021 Ram 3500

Regular Cab - Pickup

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Shipping Weight: 48 lbs
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Westin Nerf Bars - 21-3540
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Call etrailer.com at 1-800-940-8924 for expert service. We are your Ram nerf bars - running boards experts, and offer a great price. etrailer.com carries a complete line of Westin products for your Ram 3500 2021. Westin Platinum Series Oval Nerf Bars - 4" - Polished Stainless Steel part 21-3540 from Westin can be ordered online at etrailer.com. Complete nerf bars - running boards installation instructions and technical support.
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2021 Ram 3500 - Westin Platinum Series Oval Nerf Bars - 4" - Polished Stainless Steel

  • Nerf Bars
  • Fixed Step
  • Silver
  • Stainless Steel
  • Westin
  • Oval
  • Polished Finish

The curved ends on these polished stainless steel step bars give your Ram 3500 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.


Features:

  • 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
  • Polished stainless steel is long-lasting and rustproof
  • 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


Specs:

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



21-3540 Westin Stainless Steel Oval Tube Steps with Wide Steps - Platinum Series - Polished - 4" Wide


California residents: click here



Customer Reviews

Westin Platinum Series Oval Nerf Bars - 4" - Polished Stainless Steel - 21-3540

Average Customer Rating:  4.6 out of 5 stars   (115 Customer Reviews)

The curved ends on these polished stainless steel 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.

by:

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.



by:

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



by:

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!!



by:

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.



by:

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!



by:

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.



by:

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.



by:

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.



by:

After 1 year I have nothing bad to say about these bars they do as I wanted getting everyone in and out of my truck with ease. It was more for protecting the seats from sliding in and out not to break down the seat cushion and to protect the cloth seats from tears, but after sitting in the truck at a shopping center it does something I never thought of, other people hit the bars with car doors not my truck, they still look like new



by:

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



by:

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. :-)



by:

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 etrailer.com



by:

High quality, easy installation and good fit.



by:

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.



by:

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.



by:

Great steps for a great price!



by:

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.!



by:

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!!



by:

As others have noted, the instructions are not terribly robust, but once I got oriented, I was able to move along quite quickly. Either the rear brackets were mis-labeled, or the 2017 frame is slightly different. Swapping the parts side to side made the holes line up the way they should. Install took less than 90 minutes. I'm very pleased with the fit, finish, and the always fast service from e-Trailer.

The package arrived early in the day because the UPS driver didn't want to work around it in his truck all day. That meant I could install them right away. Nice!



by:

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!!



by:

Easy install using the video, had all the parts needed, very solid nerf bars.



by:

The product was flawless: E.Trailer is great when it comes to taking your order and processing it whether it's in stock or "drop shipped" from the manufacturer.



by:

Both nerf bars arrived with dents in th em



by:

Looks great and holds up to the weight. Instructions weren't great, took a while to install, but defiantly recommend to anyone



by:

Product looks nice and installs well but came w a chip in rear of tube. Not a very durable product.

Instructions, luckily very simple, we’re laid out terribly w poor illegible graphics.


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

  • Do Westin Platinum Series Oval Nerf Bars, Part # 21-3545, Fit a 2012 Dodge Ram ST Single Cab Pickup
    Yes, the Westin Platinum Series Oval Nerf Bars, part # 21-3545, will fit all regular (single) cab models in the 1500, 2500 and 3500 series. These custom-fit nerf bars bolt on with the included hardware (no drilling required) and carry a 3-year warranty from Westin. Westin also offers a polished stainless steel version that carries a Lifetime Warranty, part # 21-3540.
    view full answer...
  • Will Westin Platinum Series Oval Nerf Bars Fit Both a Ram 1500 and 2500
    The Westin Platinum Series Oval Nerf Bars # 21-3540 that you referenced are compatible with both the Ram 1500 and 2500 with a regular cab for model years 2009 to 2017. If your trucks don't have the regular cab or are not within those years let me know which you have and I'll recommend a specific set of nerf bars that might work for both.
    view full answer...
  • Polished Stainless Steel Step Bars for a 2012 Dodge Ram 1500 ST Regular Cab
    The step bars that are the closest match to what you describe and that fit a 2012 Dodge Ram 1500 regular cab are the Westin Platinum series bars that you referenced, # 21-3540. The only difference is that they have a 4-1/2 inch diameter. They are oval, they do have a lifetime warranty, they have curved ends (90 degree), and they are polished stainless steel. I have included a link to all of the step options for a 1500 regular cab for you to view.
    view full answer...
  • Westin Platinum Series Over Nerf Bars for 2015 Ram 2500 Mega Cab
    There are 4 inch oval nerf bars that fit a 2015 Ram 2500 Mega Cab, but the Westin Platinum Series Oval Nerf Bars - 4" - Polished Stainless Steel # 21-3540 do not; they fit a 2015 Ram 2500 Regular Cab as well as a 2014 Ram 1500 Regular Cab. Instead, for your 2015 Ram 2500 Mega Cab the correct 4" nerf bars are the Westin Platinum Series Oval Nerf Bars # 21-3575. These nerf bars install by bolting onto your truck so no drilling is needed and are corrosion-resistant. I have added a link to...
    view full answer...
  • How Is a Fish Wire Used to Install Hardware for Nerf Bars on a 2016 Ram
    Fish wiring is a pretty cool way to get bolts up into places that are too tight to fit your hands into. It basically involves threading the wire through the hole where the bolt needs to go with the coiled end going in first, attaching the bolt and block where the wire comes out of an open frame channel and then pulling it back through. There are a couple other variations as well. If you check out the video I attached you will see the process described and shown.
    view full answer...
  • Nerf Bar/Step Bar Recommendations for 2016 Ram 2500 Crew Cab
    We have a huge selection of Nerf Bars that would be a fit for your 2016 Ram, you can see them by clicking the provided link. I don't blame you for not wanting to go through the dealer! Big Bucks! I'd recommend going with a step bar that's constructed of stainless steel for the best corrosion resistance. DeeZee offers the # DZ372253 step that offers a limited lifetime warranty, but is reasonably priced. I've linked you to an install video showing the step bars I recommended being installed...
    view full answer...
  • Westin 4 inch Chrome Nerf Bars that Fit 2017 Ram 2500 Crew Cab and Regular Cab
    You mentioned two trucks, one is a 2017 Ram 4 door and a 2017 2500 Ram with an unknown cab style so it's harder for me to maybe get you the exact info you need but I will try my best. So cab style is really important for picking out running boards. For example the part # 21-3540 that you referenced would fit your 2017 Ram 2500 if the truck had a regular cab. If instead you had a Crew Cab you'd instead need the part # 21-3560 since the cab is longer and the steps would need to compensate...
    view full answer...
  • Westin Stainless Steel Running Board and Grille Guard Recommendation for a 2011 Ram 3500 Crew Cab
    We have multiple stainless steel Westin running boards and brush guards for your 2011 Ram 3500 Crew Cab. Your decision is really going to depend on the style that you like best. I have attached a link to all of our Westin stainless steel running boards that we carry for your truck as well as a link to all of the Westin stainless steel brush guards. The Westin Platinum Series Nerf Bars, # 21-3540, that you referenced are designed for regular cab models and will not fit your crew cab model....
    view full answer...
  • Will Westin Platinum Series Nerf Bars 21-3540 Fit 2021 Ram 1500 New Body?
    It looks like you are referring to the Westin Platinum Series Oval Nerf Bars - 4" - Polished Stainless Steel # 21-3540 which are confirmed to fit the 2018 Ram 2500 regular cab. This set is not a fit for the 2021 Ram 1500 New Body so you will want to go with a different setup. For crew cab you could look into Westin Platinum Series Oval Nerf Bars - 4" - Polished Stainless Steel # 21-4080 and for quad cab you could look at the Westin PRO TRAXX Oval Nerf Bars - 4" - Black Powder Coated Steel...
    view full answer...
  • Would Running Boards from 2018 Ram 1500 Fit 2020 Ram 2500
    There's a large enough difference between the two trucks you mentioned that the nerf bar fits would not interchange so you'd need a new set for your 2020 Ram 2500 like with the Westin part # W57HR.
    view full answer...
  • Will Running Boards from RAM 1500 Crew Cab fit 2500 Crew Cab
    You didn't mention years of the trucks so it's hard to say, but for example the Westin running boards part # 28-51050 fit 2010-2018 Ram 1500 Crew Cabs and 2500 Crew Cabs.
    view full answer...

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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee John H
Expert Research:
John H
Employee Dustin K
Video Edited:
Dustin K
Employee David F
Installed by:
David F
Employee Jessie B
Updated by:
Jessie B
Employee Isabelle B
Updated by:
Isabelle B

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