Truck Hardware Gatorback Denali Mud Flaps - Set

Was: $387.00
$348.00
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Ships by Monday
Part #: GB1223CUTD~GB1223D~GB756802
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Our Guarantee
  • Fits 2014-2018 GMC Sierra 1500
  • Fits 2019 GMC Sierra 1500 Limited
  • Fits 2015-2019 GMC Sierra 2500 HD/3500 HD (Single Rear Wheel)
  • Front - 5" of tire coverage from bottom of the fender to bottom of the flap
  • Rear - 7.5" of tire coverage from bottom of the fender to bottom of the flap
  • Includes 12"x23" cut style front flaps (GB1223CUTD)
  • Includes 12"x23" full style rear flaps (GB1223D)
  • Includes custom fit rear support brackets (GB756802)
  • Officially licensed GMC Denali logos
  • Limited lifetime warranty
  • Gatorback mud flap length comparisons

Front Flap Installation Video

GMC Mud Flap Set

What you get with the set

Gatorback Plate Finishes

Here are the different plate finishines

Most Helpful

From: on October 14, 2018
2017 GMC Denali
5
My mudflap set arrived and I was able to install all four in about three hours. Place vehicle on level ground to start. Once lining up and placing two screws to secure flap, I remove the tire to complete installation one at a time. They are a good quality set look great!
5 people found this helpful.
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From: on December 4, 2018
Lookin good
5
Had the flaps professionally installed and they fit and look great
3 people found this helpful.
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From: on November 18, 2017
Nice!
5
Better then any mud flap I have ever purchased!
3 people found this helpful.
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Most Recent

GMC Trucks
5
Really like the color and lettering on bright stainless steal . They are heavy duty to help keep rocks down from chipping the paint .
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From: on February 4, 2024
Easy to install brackets!
5
Instructions were clear, concise and easy to follow. The brackets provide an easy way to hang the mud flaps from existing OEM fender liner mount screw while aligning and securing the rest of the mount screws. Thanks for the assist!
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votes
Question:
Answer:
These will fit the 2019 2500 HD and 3500 HD as well as the 1500 Limited Denali. If it is the new body style they will not. Truck Hardware is working getting the custom fit flaps for the new truck finished up.
Verified Answer
Admin answered on 10/30/2018
votes
Question:
Answer:
They will not the Yukon. The wheel well of the Yukon is mostly plastic with the rear bumper. That is not strong enough to supper the weight of the mud flap. On the front there is not enough clearance between the tire and the inside of the wheel well to allow these flaps to be installed
Verified Answer
Admin answered on 2/10/2021
votes
Question:
By: Allan vostad on 11/2/2023
Answer:
This set will not work on the 2023. If you go here, https://www.sharptruck.com/truck-hardware-logo-mud-flaps put in your vehicles information. There are different sets for the 1500 Denali and the HD Denali
Verified Answer
Admin answered on 11/6/2023
View all questions

This Denali logo Gatorback Mud Flap set for the GMC Sierra 1500, Sierra 2500 HD & Sierra 3500 HD (single rear wheel) is designed to fit perfectly. The flaps are 12" of heavy duty rubber for full tire coverage. The weight of the flaps will ensure that they do not sail when you are driving and they do their job. The rear pair come with the custom fit brackets and the holes that line up to the factory fasteners already routered into the flaps along with all of the hardware and brackets needed for installation. The heavy duty rubber ensures that there will not be any debris that gets passed these flaps. The front flaps install inside the wheel well and come with all the hardware 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 Denali logo 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 . You will appreciate the attention to detail in these flaps.

Installation is made straight forward with the included self tapping screws and custom rear bracket. The front flaps will fasten directly to the lip of the wheel well with the self tappering screws. You can use factory existing fasteners if your wheel well has those available. There needs to be at least 1/2" of clearance in the front between the tires and wheel well to accomidate the thickness of the flap. The rear flaps will be fastened to the rear bracket and one or two self tapping screws to hold it tight against the wheel well. This will prevent the flaps from flapping into the tires and getting tore off. The Gatorbacks install flush to the inside of the wheel well 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.

Other helpful topics related to the gatorback mud flaps

BrandGatorback by Truck Hardware
Length23 inch(es)
Width12 inch(es)
Height.5 inch(es)
Weight23 lb(s)

  • 2019 GMC Sierra 2500 HD
  • 2019 GMC Sierra 3500 HD
  • 2018 GMC Sierra 1500
  • 2018 GMC Sierra 2500 HD
  • 2018 GMC Sierra 3500 HD
  • 2017 GMC Sierra 1500
  • 2017 GMC Sierra 2500 HD
  • 2017 GMC Sierra 3500 HD
  • 2016 GMC Sierra 1500
  • 2016 GMC Sierra 2500 HD
  • 2016 GMC Sierra 3500 HD
  • 2015 GMC Sierra 1500
  • 2015 GMC Sierra 2500 HD
  • 2015 GMC Sierra 3500 HD
  • 2014 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 www.p65warnings.ca.gov
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