Truck Hardware Gatorback Stainless Plate Mud Flaps - Set of 4 - Fits 2019-2026 GMC Sierra 1500

Part #:
GCN29K-SS
Sale Price
$510.40
$638.00
Free Shipping
ON ORDER — Expected to Ship in 10-14 Days
FC001K Finishing Caps (Required For Installation)

Additional details

    ⚠️Requires FC001K finishing caps / Does NOT fit AT4X & AT4X AEV
  • Includes (4)12.5" wide mud flaps, custom brackets and hardware
  • Additional tire clearance for trucks with oversized tires
  • Removable heavy duty premium rubber flaps
  • Front tire coverage - 8.75" below fender
  • Rear tire coverage - 8.75" below fender
  • 1 year limited warranty

Front Flap Installation Video

Step By Step Install Instructions

Gatorback Plate Finishes

Here are the different plate finishes

Rear Flap Installation Video

Step By Step Install Instructions

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
Love the look and the protection.
5
I live on a gravel road and wanted to protect my truck against chips.  Installation was fairly easy, but the clearance between the bottom inner bolt and the front right tire is really close.  I had to tweak the finishing cap because the tire was hitting the bolt while turning.  It clears now, but just barely.  Flaps look great and seem very high quality.

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

Rugged Stainless Steel Protection for Your GMC Sierra

The Truck Hardware Gatorback Stainless Plate Mud Flaps are engineered for GMC Sierra 1500 owners who demand both style and superior protection for their truck. Specifically designed to fit 2019-2026 GMC Sierra 1500 models (excluding AT4X & AT4X AEV Edition), these mud flaps offer unbeatable defense against road debris, mud, and rocks, while adding a touch of rugged elegance with their high-quality 304 stainless steel plates. With a durable 12.5" width, a 5/8" offset for enhanced tire clearance, and an easy-to-maintain removable design, these mud flaps provide a perfect combination of form and function. Please note that the FC001K finishing caps are required for installation and are sold separately.

Material Quality

Heavy-Duty Virgin Rubber: These mud flaps are crafted from premium virgin rubber that provides superior flexibility and durability, even in harsh weather conditions. This heavy-duty material is built to withstand the elements, offering lasting protection for your truck.

304 Stainless Steel Plates: Each mud flap features a 304 stainless steel plate that measures 10 1/4" x 5". This plate adds not only a layer of corrosion resistance but also a polished, high-end look that complements the rugged design of your GMC Sierra.

Durable Nylon Brackets: Reinforced with fiberglass, the nylon upper brackets are designed for strength and longevity. These brackets resist fading, chipping, and cracking, ensuring that your mud flaps stay securely in place and maintain their clean, professional appearance.

Installation Details

Installing the Gatorback Stainless Plate Mud Flaps is straightforward and hassle-free. These mud flaps are designed to use your truck’s factory mounting points, allowing for installation with existing screws and eliminating the need for any drilling. The FC001K finishing caps (sold separately) are required to ensure a clean, OEM-quality finish and cover any gaps left after removing the factory splash guards. The track system makes it easy to remove and reinstall the mud flaps, simplifying maintenance and cleaning. All necessary mounting hardware is included to provide a smooth and secure installation.

Key Features

  • High-quality 304 stainless steel plates for added corrosion resistance and style
  • Heavy-duty virgin rubber construction for long-lasting durability

  • Nylon upper brackets with 5/8" offset for enhanced tire clearance

  • Removable design with a track system for easy maintenance

  • Requires FC001K finishing caps for a clean, OEM-quality finish (sold separately)

Care & Maintenance: To keep your mud flaps looking their best, regular cleaning is recommended. The convenient track system allows for easy removal, simplifying cleaning and maintenance.

  • Virgin Rubber: Use mild soap and water to clean the rubber portion of the mud flaps, avoiding harsh chemicals that may degrade the material. Virgin rubber is naturally resistant to cracking, but regular care will help maintain its flexibility and extend its lifespan.
  • 304 Stainless Steel Plate: Use a stainless steel cleaner and a soft cloth to keep the plate looking polished and free of corrosion. Proper cleaning will help maintain the premium appearance of the stainless steel.
  • Nylon Brackets: Wipe down the nylon brackets with a damp cloth and a mild pH-balanced soap to ensure they remain in good condition.

Finishing Caps (FC001K)

The FC001K finishing caps are essential for a professional, OEM-quality finish when installing the Gatorback mud flaps. These caps provide a seamless integration with the GMC Sierra’s body lines, covering any exposed areas left after removing factory splash guards. They fit flush with the truck’s fender flares, ensuring a clean, cohesive look. No drilling or cutting is required, making installation simple and efficient.

Tire Coverage

  • Front mud flaps extend 8.75" below the fender
  • Rear mud flaps also extend 8.75" below the fender, providing comprehensive protection for your truck's paint and bodywork

What's Included

  • (4) 12.5" wide mud flaps (2 front driver, 2 rear passenger)
  • Custom-fit mounting brackets
  • All necessary hardware
  • Note: FC001K finishing caps are required for installation and are sold separately

Warranty Information

Truck Hardware Gatorback Mud Flaps are backed by a limited lifetime warranty, covering rubber replacement (such as tears or damage) for the lifetime of the product to the original owner. The nylon brackets come with a one-year warranty against manufacturing defects. Please note that damage caused by abuse, misuse, or regular wear and tear on brackets, plates, or mounting hardware is not covered.

Terms

  • Virgin Rubber: Virgin rubber is used for its excellent durability, flexibility, and resistance to cracking, even in extreme temperatures. This type of rubber ensures that the flaps remain strong and flexible, providing long-lasting performance.
  • 304 Stainless Steel: 304 stainless steel is known for its corrosion resistance, strength, and polished appearance, making it an ideal choice for automotive accessories exposed to tough environments.
  • Offset: A design feature that moves the mud flap slightly outward, providing extra clearance for larger tires or side steps.

Enhance the look and protection of your GMC Sierra 1500 with the Truck Hardware Gatorback Stainless Plate Mud Flaps. These mud flaps combine rugged protection with a touch of elegance, featuring high-quality stainless steel plates and heavy-duty rubber construction. With a custom-fit design, easy installation, and the FC001K finishing caps for a professional OEM appearance, these mud flaps provide everything you need to keep your truck looking great while staying protected. Order yours today and give your Sierra the stylish and durable upgrade it deserves.

BrandGatorback by Truck Hardware
Length23 inch(es)
Width12.5 inch(es)
Height.5 inch(es)
Weight18 lb(s)
UPC667511038634

  • 2026 GMC Sierra 1500
  • 2025 GMC Sierra 1500
  • 2024 GMC Sierra 1500
  • 2023 GMC Sierra 1500
  • 2022 GMC Sierra 1500
  • 2021 GMC Sierra 1500
  • 2020 GMC Sierra 1500
  • 2019 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