Truck Hardware Gatorback Black Plate Mud Flaps - Set - AT4X & AT4X AEV Edition Only

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Part #: GCN211K-AA
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Our Guarantee
  • Fits 2019-2024 GMC Sierra 1500 AT4X & AT4X AEV Edition Only
  • Anodized aluminum plates with matte finish
  • Includes (4)12.5" wide mud flaps (2 driver/2 pass), custom brackets and hardware
  • Durable nylon upper bracket with 5/8" Offset
  • Removable heavy duty premium rubber flaps
  • Front tire coverage - 8.75" below fender
  • Rear tire coverage - 8.75" below fender
  • 1 year limited warranty

Installation Video

Step by Step Instructions

Gatorback Plate Finishes

Here are the different plate finishines

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This Gatorback Offset Mud Flap set with black anodized aluminum plates for the GMC Sierra 1500 AT4X (AEV) is designed to fit perfectly. The flaps are 12.5" of heavy duty rubber and are attached to a custom fit bracket. The brackets are made from nylon/fiberglass material that gives them the durability you need. The brackets will not fade or chip and have the holes that line up with the factory fasteners already in them for a quick, simple install. The heavy duty rubber ensures that there will not be any debris that gets passed these flaps. These install inside the wheel well and have a 5/8" offset for extra tire clearance and come with all the hardware needed. An added feature of these flaps is the rubber portion is removable from the bracket via a built in channel to allow the flap to slide in and out for easy removal. This gives you the options for extra ground clearance if needed. Giving you the options for extra ground clearance if needed. When you remove the factory mud guard there will be a small hole in the fender that the fender plugs will cover. That is why the color of your truck is needed. The Truck Hardware Gatorback series mud flaps are the industries highest quality heavy duty mud guards! The rugged design and quality finish of these mud flaps make the perfect compliment to your truck. Featuring a 1/2" thick rubber flap, these mud flaps are sure to impress while they protect your investment.

The black anodized plate measures 10 1/4" x 5" on the front and rear . You will appreciate the attention to detail in these flaps.

Installation is made simple featuring no body drilling to install using factory exisiting screws. Installation takes about 15 mins per flap and you can use tools you have at home. The Gatorbacks install the inside of the wheel well and feature a 5/8" Offset so they work with step bars, power boards or side steps. The mudflaps also feature a lifetime warranty on the rubber portion of the flap. If the flap comes off the truck or is damaged to due to normal wear and tear, let us know and we will send you a replacement piece of rubber at no charge.

Manufacturer Warranty-

Gatorback mudflaps are backed by a Limited lifetime warranty. This warranty covers rubber replacement (ex- tear offs) for the lifetime of the product to the original owner. It does not cover damage caused by abuse, or regular wear and tear on brackets, plates, or mounting hardware. On the nylon brackets a 1 year warranty is included for manufacturing defects. Damage by abuse, or regular wear and tear is not covered. On the nylon brackets a 1 year warranty is included for manufacturing defects. Damage by abuse, or regular wear and tear is not covered.

Other helpful topics related to the gatorback mud flaps

BrandGatorback by Truck Hardware
Length23 inch(es)
Width12.5 inch(es)
Height.5 inch(es)
Weight18 lb(s)

  • 2024 GMC Sierra 1500
  • 2023 GMC Sierra 1500
WARNING: Some products may contain chemicals such as DEHP, which can cause cancer, birth defects or other reproductive harm. For more info go to
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