Truck Hardware Gatorback AT4 Black Wrap Mud Flaps - Set

Was: $814.00
$732.00
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Part #: GCAA200K-AT4W
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Our Guarantee
  • Fits 2020-2024 GMC Sierra 2500 HD & 3500 HD (Single Rear Wheel)
  • Does NOT fit the AT4X submodel
  • Officially licensed AT4 logo with black background on a 304 stainless steel plate
  • Includes (4)12" wide mud flaps (2 driver/2 pass) and installation hardware
  • Installs over OEM protector - Does not fit with OEM splash guards
  • Black anodized aluminum upper bracket with 2" kickback
  • Front tire coverage - 8.75" below OEM protector
  • Rear tire coverage - 8.75" below OEM protector
  • Heavy duty premium rubber flaps
  • Lifetime limited warranty

Front Flap Installation Video

Step By Step Install Instructions

Rear Flap Installation Video

Step By Step Install Instructions

GMC Sierra HD Mud Flap Differences

Product Overview

Most Helpful

Easy Install and Looks Good
5
Received them quickly after ordering. Install took about 40 minutes including reading instructions and unpacking. Very solid flaps and easy install.
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Mud flaps
5
Look good
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Awesome Mud Flaps Real Protection for Sharp Trucks
5
I was skeptical until I purchased these flaps. They protect the sides of the truck better than anything I have ever seen.  These flaps even keep the truck cleaner in ordinary rain and wet roads. Are they expensive? Yes! My wife couldn't believe I would spend that kind of cash on mud flaps but even she has said the difference is incredible vs the OEM flaps. Well worth the protection they provide and they look so cool!
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Most Recent

Great looking
5
Mud flaps look great offer good protection
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Gatorback 2022 gmc 2500 at4
5
These mud flaps are just what I was looking for. The AT4 package has a factory lift so flaps are a must if you want to protect your paint. Very easy to install. I didn't need to remove my wheels. They're kind of pricey but so was the truck. I would buy again.
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This AT4 logo with a black background Gatorback Mud Flap Set is designed for a perfect fit on GMC Sierra 2500 HD & GMC Sierra 3500 HD single rear wheel trucks. The front and rear flaps feature 12" wide and 1/2" thick heavy duty rubber that will protect your vehicle from rocks, mud, gravel, snow and more. The upper custom fit brackets are made out of black anodized aluminum so they will not rust or corrode. They are formed to follow the contours of the smaller factory protector in the wheel well and do not have to be removed to install the Gatorback flaps. Please note, these flaps do not fit the larger, optional facotry mud guards, see image above in the scroller. This design gives the most tire clearance in the wheel well. The heavy duty rubber ensures that there will not be any debris that gets passed these flaps. You will see your vehicle staying cleaner longer, less junk on your step bars, as well as fewer rock chips on the paint. Installation is easy as these use factory existing holes so you will not be drilling in to the body of the truck. 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. These mud flaps are sure to impress while they protect your investment.

Installation is made simple featuring no body drilling using factory exisiting fastereners, mounting locations & custom designed brackets. If there are not any fasteners the flaps will come with the needed hardware and brackets for solid installation. Installation can done with tools you have at home. The mud flaps install overtop of the factory protectors and extend down for added tire coverage and vehicle protection. This set includes everything you need to get the flaps installed on your truck.

The AT4 text is officially licensed ensuring it looks perfect and is die stamped into the stainless steel plate with a hand applied vinyl overlay. The stainless plate measures 10 1/4" x 5" on the front and rear flaps. You will appreciate the attention to detail in these flaps. 

Other helpful topics related to the gatorback mud flaps

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.

Brand Gatorback by Truck Hardware
Length 23 inch(es)
Width 12 inch(es)
Height .5 inch(es)
Weight 20 lb(s)
UPC 667511040514

  • 2024 GMC Sierra 2500 HD
  • 2024 GMC Sierra 3500 HD
  • 2023 GMC Sierra 2500 HD
  • 2023 GMC Sierra 3500 HD
  • 2022 GMC Sierra 2500 HD
  • 2022 GMC Sierra 3500 HD
  • 2021 GMC Sierra 2500 HD
  • 2021 GMC Sierra 3500 HD
  • 2020 GMC Sierra 2500 HD
  • 2020 GMC Sierra 3500 HD
WARNING: Some products may contain chemicals such as DEHP, which can cause cancer, birth defects or other reproductive harm. For more info go to www.p65warnings.ca.gov
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