15-25 Ford F-150 Westin 21-23945 SuperCrew PRO TRAXX 4 Oval Nerf Step Bars - Black

Upgrade your truck with bold style and functional safety. Westin's 4" PRO TRAXX Oval Nerf Bars offer wide, secure steps, durable steel construction, and easy bolt-on installation—perfect for daily use and rugged performance.

Top Features:

  • 4″ oval black powder-coated steel tubing

  • 4″ wide, non-slip injection-molded step pads

  • Domed ends with no exposed bolt heads

  • Factory-style 30° bends for a clean look

  • No-drill, bolt-on installation with included hardware

  • 3-year limited warranty on black finish

Vehicle Fitment:

  • 2015–2025 Ford F-150 SuperCrew Cab

  • 2022–2025 Ford F-150 Lightning SuperCrew Cab

  • 2017–2025 Ford F-250, F-350, F-450 Super Duty Crew Cab

  • 2017–2025 Ford F-550 Super Duty Crew Cab & Chassis

Vendor: Westin
SKU: WES21-23945
Availability: 2 In Stock
$ 468.75 USD
On-Sale $ 468.75 USD
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Better hurry, only 2 left in stock.

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UPC: 707742062722
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Proposition65 Warning: Cancer and Reproductive Harm

PRO TRAXX 4 Oval Nerf Step Bars – Black (Part #21‑23945)

Westin’s PRO TRAXX 4 Oval Nerf Step Bars (P/N 21‑23945) deliver rugged styling and functionality in a sleek, bolt-on package—perfect for Ford F‑150 SuperCrew trucks.

The PRO TRAXX 4 Oval Nerf Step Bars offer a bold upgrade for trucks, combining a 4″ oval steel tube and wide 4″ injection‑molded polymer step pads to deliver a safer, more stable footing when entering or exiting the vehicle. Featuring 30 factory‑style bends and fully welded domed ends, these bars eliminate exposed bolt heads or end caps that can rust or snag. Designed for effortless bolt‑on installation without drilling on most models, they deliver both on appearance and protection—shielding rocker panels from road debris damage. Built in San Dimas, California, this product merges styling, strength, and smart engineering in one premium package.

Key Features

  • 4″ oval steel tubing for durability and rugged style

  • 4″ wide injection‑molded polymer step pads with aggressive tread for sure footing

  • 30° factory‑style bends and seamless domed ends—no exposed bolt heads or end caps

  • Fully welded design prevents moisture intrusion and internal corrosion

  • Bolt‑on installation with included mounting hardware—no drilling required in most applications

  • Designed and engineered in California, built for fit and finish quality

Benefits

  • Enhances truck appearance with a refined, street‑style profile and sweeping curved ends

  • Provides a wide, secure step platform for passengers of all ages and footwear types

  • Protects rocker panels from road‑born impacts and abrasions

  • Simplifies installation—mount kit included, saving time and effort

  • Backed by manufacturer warranty: 3‑year limited warranty on black powder coat finish; polished stainless version carries a lifetime limited warranty

  • Adds resale value and peace of mind with durable, corrosion‑resistant construction

Product Specs

  • Part Number: 21‑23945

  • Tubing Diameter: 4″ oval steel

  • Step Pad Width: 4″ injection‑molded polymer

  • Finish/Color: Black powder coat on e‑coated steel

  • Warranty: 3 year limited against defects in materials, workmanship and finish (excludes misuse and road‑hazard damage) or longer for polished stainless steel version with lifetime warranty as noted above

  • Weight (approx): 61 lbs per pair; oversize shipment may apply

  • Mounting Style: Rocker‑panel mounted, bolt‑on installation kit included

Install Difficulty Level

Easy – Installation is straightforward and user‑friendly. Most kits require no drilling and include all mounting hardware. According to installation documentation and user feedback, setup time can be under one hour per side, making this a simple DIY upgrade with minimal tools and effort.

Vehicle Fitment

Compatible with Ford trucks equipped with SuperCrew cabins:

  • 2015–2025 Ford F‑150 SuperCrew Cab Pickup

  • 2022–2025 Ford F‑150 Lightning SuperCrew Cab Pickup

  • 2017–2025 Ford F‑250, F‑350, F‑450 and F‑550 Super Duty Crew Cab Pickups and Cab & Chassis models
    Designed specifically to bolt into factory mounting points for these model years, ensuring precise fit and factory‑style integration.

Questions or concerns about this product or to report any description inaccuracies? Contact the MPT Performance experts at (407) 636‑7077 or by email.

Shipping Policy

MPT is proud to offer free shipping on most orders over $149.

  • Free shipping applies only to the contiguous United States. Shipping and handling charges will apply to orders outside the contiguous US, and the buyer is responsible for any duty fees or taxes their home country may charge to import goods.
  • With free shipping, we will choose the best shipping method for your order. We use all major carriers, including USPS, FedEx, UPS, and DHL.

Turnaround Times:

  • MPT Tunes have a standard turnaround time of 2-3 business days, beginning once we receive your MPT Tune Form.
  • We do not process orders on weekends or observed holidays, which do not count as business days.
  • Physical items that are in stock at MPT and ordered by 4PM EST will be shipped the same day. Orders placed after 4PM EST will be processed on the following business day.

Special Considerations:

  • Items not stocked at our location will follow the same processing times but may experience lead-time delays and could incur additional charges. Shipping methods may vary for these items based on what was paid and the requested delivery speed. If you need an item by a specific deadline, please contact an MPT Expert.
  • SCT Tuner Orders with the Prioritized Order option must have their tune forms submitted by 3PM EST to be completed the same day. Forms submitted after this time will be processed the next business day.
  • Orders will ship to the billing address listed on your order. If paying by credit or debit card, we can only ship to the billing address. Contact an MPT Expert for assistance if you need a different shipping address.

MPT Performance Returns and Refund Policy

A Return Authorization Number is required for all returns. Please contact an MPT Expert to obtain an RA # before sending anything back to us for any reason.

MPT tuning charges and license fees are Non-Refundable. The sale is final when MPT has sent the tune file over email. This includes both new tune purchases and tune updates.

Products other than MPT tunes, digital products, and MPT decals may be returned within 30 days for any reason, provided that the product has not been installed and is in brand new, unused condition with the original packaging. Once a product has been installed it is non-refundable. We reserve the right to deny the return, should the product be received and it display signs of installation or unmentioned damage.

For vehicle programmers/tuners, the vehicle must be returned to stock if a program was installed. If a tuning device is returned and has not been returned to stock, a refund will not be issued, and your tuner will not be sent back without a shipping and handling fee.

The customer is responsible for all shipping charges incurred during the return process.

Amount Refunded:
•Returns post marked before 30 days from the date the item was received will be refunded the purchase price, minus a 25% restocking fee and the cost of shipping.
After 30 days, all sales are Final.
•Shipping charges along with any package insurance are non-refundable. If your purchase was shipped with our Free Shipping option, the cost of the shipping will be subtracted from the total refund amount.

HP Tuners Credits are assigned to the HP Tuners product with the submitted serial number and cannot be transferred. Once you load a tune to your vehicle with the RTD, these credits are Non-Refundable.

Digital products and files that have no ability to be taken back physically, such as an SCT Tuner Unlock, are Non-Refundable.

nGauge Tune License Fee is included in your initial purchase of MPT tunes for the nGauge. This fee is factored into the price of the tunes and becomes Non-Refundable when the stock file has been emailed to MPT.

MPT Decals are Non-Refundable, once they have been received by the customer.

Year Make Model Submodel
2015-2025 Ford F-150

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