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Truck Hardware Gatorback Gunmetal GMC Mud Flaps - Set of 4 - Fits 2023-2026 GMC Sierra 1500 AT4X

Part #:
GCN211K-GMG2
Sale Price
$694.40
$868.00
Free Shipping
In Stock Ships by Monday

Additional details

    ⚠️Fits AT4X & AT4X AEV models only
  • Includes (4) 12.5" wide mud flaps, brackets & hardware
  • 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 finishes

At a glance

Overall sentiment is overwhelmingly positive: customers consistently describe Gatorback/SharpTruck mud flaps as premium, heavy-duty, great-looking products that provide excellent protection, with standout customer service and warranty support; the main negatives are high price and occasional installation/hardware/fitment frustrations.

What Customers Liked

  • Thick, heavy rubber with a substantial feel; durable, flexible in cold/snow/ice; doesn’t “sail” at highway speeds; plates/weights feel robust and can be replaced/swapped.
  • Significantly reduces rock chips, mud/salt spray, and slush on rocker panels, running boards/power steps, bumpers, trailers/RVs; many note cleaner sides and less debris noise on gravel roads.
  • Vehicle-specific fit often described as ‘like a glove’/OEM; finishes (chrome, gunmetal, black plates) and logo plates (Z71/AT4X/FX4/Ram/Ford/Chevy, flags, etc.) ‘make the truck pop’ and draw compliments.
  • Many report straightforward installs, especially after the first flap; helpful YouTube videos; slotted holes help leveling; adjustable stick-out; removable lower section appreciated for off-roading/clearance.
  • Fast shipping is frequently praised; responsive support for exchanges/mis-shipments/damaged parts; hassle-free warranty replacements (torn/ripped flaps or scratched plates) often sent quickly.

Things to Consider

  • Most common complaint: ‘pricey/overpriced’ (often $600–$1000 with brackets/plates). Some feel brackets/plates should be included at that price.
  • Installs can be time-consuming or awkward (especially rears/dually setups), sometimes requiring wheel removal, right-angle drill, extra hands, drilling into plastic liners, trimming liners/trim pieces, or drilling/slot-cutting templates.
  • Paper instructions sometimes lacking, confusing, or mismatched vs video; hardware bags not well-separated/labeled; left/right not always marked; templates/printer scaling issues; ‘no-drill’ marketing criticized when drilling plastic is required.
  • Occasional reports of cheap/fragile fasteners, plastic clips/nut inserts pulling out/stripping, mixed metric/SAE heads, silver hardware being visually noticeable, bracket thickness/material concerns (plastic/galvanized vs stainless), and clamp-on brackets potentially rubbing paint (suggest PPF/tape).
  • Some vehicles need hole elongation, bracket bending, or ‘gerry-rigging’; occasional rubbing with oversized tires/offset wheels; a few reports of mis-shipped parts (two rears), wrong plates/colors, missing washers/spacers/clips/screws, or shipping scuffs/scratches/damaged boxes.
AI-generated from the text of customer reviews

Most Helpful

Gatorback Mudflaps for 2024 GMC Sierra 1500 AT4X AEV Edition
5
Looked far and wide for mudflaps for my new truck. While these are pricey, they fit perfectly and really compliment my truck. I echo the comments of previous customers that the fronts can easily be installed with wheels turned to lock on each side to allow access. It is best to remove the rear wheels to have the best access to install all fasteners. I have no concerns that these will last the lifetime of the truck. It is really nice that the lower flaps can be easily removed, by pulling a tab, for off-roading and low clearance situations. A 10/10 product!
Perfect Mudflaps for the AT4X
5
I recently purchased these mudflaps for my AT4X.  I had decided to forgo mudflaps on my new truck and then took it to Alaska.  After paying to have all the all of the rock chips I incurred repainted, I decided mudflaps were in fact a necessity.  These mudflaps are extremely high quality and perfectly fit the AT4X.  I installed the front ones very easily without any tire removal.  I also got the back ones on without tire removal, but it was very difficult and time consuming, so I would recommend taking just the back two tires off for a much easier install.  I love that the actual flap at the bottom is easily removable when you need more clearance.  I highly recommend these mudflaps to anyone who has purchased a GMC AT4X and has yet to install a set of mudflaps.
2025 AT4X AEV Mud Flaps
5
Installed without removing wheels. Very easy. I drive on a lot of gravel and these flaps really keep the rocks from flying up to the side of the vehicle.

Most Recent

Great quality and easy installation
5
After extensive research, I chose Gatorback mud flaps for my new truck, and I'm very happy with my decision. They're built to last, providing superior protection against mud and snow, which was crucial for my truck steps and trailer. The included hardware made installation a breeze. The front flaps went on easily by turning the wheels, and while the rear required removing the tires, the process was still simple. These mud flaps are a worthwhile investment.
Great Product - Speedy Shipping - A+
5
Shipped fast, product as ordered and easy to install!

No questions have been asked about this product yet. Have a question? Ask it below!

Premium Gunmetal Protection for Your AT4X

Upgrade your GMC Sierra 1500 AT4X or AT4X AEV Edition with the Truck Hardware Gatorback Gunmetal "GMC" Logo Mud Flaps. Specifically designed for the AT4X models, these premium mud flaps combine rugged protection with an elegant titanium darkened finish, giving your truck a distinctive and refined look. The officially licensed "GMC" logo on a 304 stainless steel plate with a gunmetal finish adds a bold statement while providing corrosion resistance. Built to handle any terrain, these mud flaps are essential for keeping your AT4X looking pristine, no matter the adventure.

Durability Meets Sophistication

Crafted from heavy-duty, 1/2" thick rubber, the Gatorback Gunmetal Mud Flaps provide superior protection against road debris, rocks, and mud. Each mud flap measures 12.5" wide, ensuring full coverage for your tires and maintaining the integrity of your vehicle's paint and bodywork. The gunmetal stainless steel plates feature the iconic black "GMC" logo, creating a striking visual contrast while offering enhanced durability. The sturdy nylon and fiberglass composite brackets are engineered to resist fading and chipping, providing reliable support for years to come, even under harsh conditions.

Easy Installation for a Custom Fit

The Gatorback Gunmetal "GMC" Mud Flaps are designed for a hassle-free installation process that requires no body drilling. The mud flaps come with all the necessary custom-fit brackets and hardware, using existing factory mounting points for a seamless fit. The 1.5" offset brackets provide extra tire clearance, making these mud flaps compatible with accessories like step bars, power boards, or side steps. The removable rubber flaps add versatility, allowing you to adjust for extra ground clearance when needed. Whether you're tackling rugged trails or cruising the streets, these mud flaps ensure maximum protection and versatility.

Tire Coverage

  • Front Tire Coverage: 8.75" from the bottom of the fender to the bottom of the flap, providing optimal defense for your vehicle's bodywork.
  • Rear Tire Coverage: 8.75" from the bottom of the fender to the bottom of the flap, protecting against road debris and ensuring your truck remains in excellent condition.

Key Features

  • Heavy-Duty Rubber Construction: 12.5" wide premium rubber flaps designed to withstand the toughest on-road and off-road conditions.
  • 304 Stainless Steel Plate with Titanium Darkened Finish: Features the officially licensed "GMC" logo in black, offering a stylish and corrosion-resistant finish that enhances the appearance of your AT4X.
  • No-Drill Installation: Custom-fit brackets use existing factory mounting points for easy and quick installation, avoiding the need for additional modifications.
  • Removable Rubber Flaps: Allows for extra ground clearance when needed, offering flexibility for different driving terrains and conditions.

Product Care & Maintenance

  • Rubber Flaps: Clean using mild soap and water to keep them looking great. Avoid abrasive cleaners that could damage the rubber.
  • 304 Stainless Steel Plate: Clean with a mild detergent cleaner. Do not use harsh chemicals with a pH level below 4 or above 9, as they can damage the finish.

What's Included

  • Four Gatorback Gunmetal "GMC" Logo Mud Flaps for front and rear.
  • Custom-fit brackets and all required mounting hardware.

Warranty Information

Gatorback Mud Flaps are backed by a 1-year limited warranty covering defects in materials and craftsmanship for the original owner. This warranty does not cover damage caused by misuse, abuse, or improper installation. The rubber portion is covered for normal wear and tear for the lifetime of the product.

Terms

  • 304 Stainless Steel Plate: A high-quality metal plate treated for durability and corrosion resistance with a titanium darkened finish.
  • Heavy-Duty Rubber: A tough, resilient material designed to endure harsh conditions, providing optimal defense against debris.
  • No-Drill Installation: A convenient installation method using factory mounting points, eliminating the need for drilling new holes.

The Truck Hardware Gatorback Gunmetal "GMC" Logo Mud Flaps are the perfect addition to your GMC Sierra 1500 AT4X & AT4X AEV Edition. With a premium titanium darkened finish, heavy-duty construction, and easy installation, these mud flaps provide the ultimate combination of protection and style. Whether you're navigating challenging off-road paths or driving through the city, these mud flaps offer the ideal defense against road debris while enhancing the rugged, upscale appearance of your truck. Trust in Gatorback's commitment to quality and equip your AT4X with mud flaps that reflect its premium character.

Brand Gatorback by Truck Hardware
Length 23 inch(es)
Width 12 inch(es)
Height .5 inch(es)
Weight 19 lb(s)
UPC 667511048749

  • 2026 GMC Sierra 1500
  • 2025 GMC Sierra 1500
  • 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 www.p65warnings.ca.gov