Westin 2015-2018 Ford F-150 SuperCrew Platinum 4 Oval Nerf Step Bars - Black

SKU: WES21-3945

Running Boards, Nerf Bars and Rock Sliders

WES Nerf Bars - Platinum 4...

Westin

Westin 2015-2018 Ford F-150 SuperCrew Platinum 4 Oval Nerf Step Bars - Black

SKU: WES21-3945

Running Boards, Nerf Bars and Rock Sliders

WES Nerf Bars - Platinum 4...

Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.

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Description

Westins Platinum 4 Oval Nerf Step Bars feature OE styling and offer an alternative look and style to traditional round tube steps. Their larger size provides strength and confidence with a full 4in. wide recessed step area. Platinum 4 Oval Nerf Step Bars are vehicle specific applications that feature a no-drill installation.

Application Summary

2015-2023 Ford F-150 SuperCrew Cab Pickup, 2017-2023 Ford F-250 Super Duty Crew Cab Pickup, 2017-2023 Ford F-350 Super Duty Crew Cab Pickup

Part Type

Step Nerf Bar Kit

Data: v4.2 - Upd: 2026-10-13 17:26:30

Features

4 in. Wide Step Pad
4.25 in. Wide At Widest Dimension
90 Degree Mandrel Bends
Bolt-on installation - no drilling required on most applications
Injection molded polymer step pad, recessed step area
Lifetime Warranty
Mount kit included
OE style oval tube steps and mandrel bends
Polished Stainless Steel
Protects vehicle rocker panels from potential damage

Specifications

Product Attributes - Brand: Westin Automotive
Product Attributes - Manufacturer's Part Number: 21-3945
Product Attributes - Part Type: Running Boards, Nerf Bars and Rock Sliders
Product Attributes - Product Line: Westin Platinum Series Oval Step Bars
Product Attributes - UPC: 707742064375
Product Attributes - Side Step Style: Nerf bar
Product Attributes - Material: Steel
Product Attributes - Color: Black
Product Attributes - Finish: Gloss
Product Attributes - Coating Type: Powdercoated
Product Attributes - Powered: No
Product Attributes - Diameter (in.): 4.000 in.
Product Attributes - Side Step Position: Cab
Product Attributes - Total Step Pad Quantity: 4
Product Attributes - Drilling Required: No
Product Attributes - Mounting Brackets and Hardware Included: Yes
Product Attributes - Lighted: No
Product Attributes - Door Switches Included: No
Product Attributes - Wiring Harness Included: No
Product Attributes - Quantity: Sold as a pair.

Reference Information

Brand Name/s	Westin
StreetFX SKU	wes21-3945
SFX Item ID	4151075
Supplier Item Code	4151075
Manufacturer SKU	21-3945
Manufacturer UPC	707742064375
Alternative References	wsa-21-3945, F-150