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Truck Hardware Finishing Caps - 6 Piece - Fits 2020-2026 GMC Sierra 2500/3500HD

Part #:
FC004K
Sale Price
$384.00
$480.00
Free Shipping
In Stock Ships by Thursday

Additional details

    ⚠️Does NOT fit AT4X
  • Includes (6)finishing caps (Front Wheels/Front of Rear Wheels/Back of Rear Wheels)
  • Completes fender flares when OEM protectors are removed
  • No drilling required for installation
  • Mud flap deletes for removal of OEM splash guards

Installation Video

Step By Step Install Instructions

37” Tire Solution for GMC AT4 HD Owners

Video from Jake’s Lifted Life

At a glance

Overall sentiment is strongly positive: customers say the finishing caps/mud flap delete kit fits close to OEM, installs quickly with basic tools, and dramatically improves appearance while often helping tire clearance/rubbing with larger tires and lifts. A minority report imperfect alignment/gaps, paint/white substrate showing, high price for plastic, and occasional fit/clearance expectations not fully met.

What Customers Liked

  • Commonly reported 15–60 minute install for 4–6 pieces; clear instructions/videos; uses mostly factory holes/hardware; often no drilling/cutting and frequently no need to remove wheels/tires (though rears can be tight).
  • “Looks factory/OEM,” cleans up fender lines, removes ‘grandpa/paw paw’ mudflap look; texture/color match to factory trim/fender flares is frequently praised; truck looks taller/cleaner and gets compliments.
  • Many buyers with leveling/lift kits and 33–37" tires report reduced or eliminated rubbing on turns versus factory splash guards; avoids trimming metal; helps make room for wider wheel/tire setups (some still needed minor trimming/adjustment).
  • Described as heavy-duty, solid plastic (some liken to fiberglass); better than expected and sometimes better than OEM mudflaps.
  • Fast delivery (often a few days to <1 week), parts individually wrapped/protected, good communication and helpful customer service (including handwritten thank-you notes).
  • Works well as finishing pieces to delete factory guards and install aftermarket mud flaps (e.g., Gatorback), finishing off the bottom edge cleanly.

Things to Consider

  • Some report gaps or misalignment (often front pieces), holes not lining up exactly, needing adjustment/force, or rear fitment issues on certain trucks; a few mention bolt clearance being tight.
  • Multiple reviews note parts are white/clear plastic with black textured paint rather than molded black; scuffs/scratches can reveal white underneath; seams/inside not painted; some repaint or paint-match.
  • Frequently described as pricey/expensive ‘for plastic’; some still say worth it, but value is a recurring complaint.
  • A handful still experienced tire rub with 35s/37s depending on GM fender design/wheel offset; some required trimming corners or additional mods; one reviewer felt claims about no rub were incorrect.
  • Several wish kits included all 6 locations by default or offered pairs; some note missing/extra pieces or needing to buy an additional set for caps in front of rear wheels.
  • One severe complaint about locking nuts spinning/stripping/corrosion after ~20k miles and difficulties reusing on a new vehicle; occasional need to source extra bolts/screws for certain factory configurations.
  • Rear areas can be hard to access; clips/rivets can be difficult (e.g., yellow clip/tab), sometimes requiring drilling out rivets or careful removal to avoid breaking tabs.
AI-generated from the text of customer reviews

Most Helpful

Awesome Fit!
5
One of the easiest mods I’ve done so far! They look great and such a difference it makes!
Dialed
5
These improve the look of the truck a ton. fitment is ok, a few have a little gap between fender flare no matter how much I adjust them. Overall they look way better than the oem mudflaps.
Mud flap deletes
5
I’ve installed this finishing caps on my last 3 trucks. instillation is quick and easy with simple hand tools. The look is amazing really brings ground clearance up and the compliments are awesome!! Highly recommend this product for a easy, simple, clean look on any truck

Most Recent

Great fit.
5
They fit really well. I didn’t have to cut into the metal like some of the other companies require you to do which is very unnecessary. Go with SharpTruck. They’ll fit. 👍🏻
Fitment
3
Makes the truck look better but  The fitment wasn’t the greatest . It doesn’t line up 100%

Is there any cutting involved when installing these on the front fender?

- Johnny Aguilar on 10/26/2022

There is no cutting. They are 100% no drill and fasten directly to the truck using existing holes

- Admin on 10/26/2022

Is there any rubbing after removing the factory ones and installing these?

- Johnny Aguilar on 11/22/2022

That would depend on the size and offset of your wheels

- Admin on 11/25/2022

Do these work for DRW and also are they paintable?

- Derick on 2/13/2023

They will fit the front tires but not the rear. Yes they are paintable

- Admin on 2/14/2023

View all questions

Upgrade your 2020-2026 GMC Sierra 2500/3500HD with the Truck Hardware Sierra HD Finishing Caps, designed to provide a polished and complete look when the factory-installed OEM protectors are removed. This premium 6-piece set includes finishing caps for the front wheels, the front of the rear wheels, and the back of the rear wheels, ensuring that your truck maintains its original, sleek appearance while enhancing compatibility with Truck Hardware Gatorback mud flaps. Whether you're seeking a clean finish after removing the OEM splash guards or simply want to prepare your truck for upgraded mud flaps, these finishing caps are the perfect solution.

OEM Look and Compatibility

The Truck Hardware Sierra HD Finishing Caps are expertly crafted to seamlessly integrate with the lines of your GMC Sierra, preserving the OEM design and appearance of the vehicle. By completing the fender flare, these caps make sure your truck doesn't have any exposed or unfinished areas, which is especially important after the removal of the factory splash guards. They are compatible with Truck Hardware Gatorback mud flaps, making them an essential accessory for those looking to upgrade their mud protection while retaining the truck's original design elements.

These finishing caps are specifically designed to work without the need for drilling, ensuring a hassle-free installation. Unlike other caps, these finishing caps do not require any cutting of the truck and serve as a direct replacement. The caps fit flush against your truck's fender flares, providing a smooth and seamless transition that looks as though it came straight from the factory. With this high-quality finishing solution, you can achieve the look you desire without compromising the integrity of your vehicle.

Effortless Installation

Truck Hardware understands the importance of a simple, user-friendly installation. The Sierra HD Finishing Caps require no drilling, meaning they can be easily installed using standard tools that you likely have at home. The set is custom-designed for the GMC Sierra 2500/3500HD, which guarantees a perfect fit that is straightforward to install, allowing you to maintain your truck's sleek and finished appearance without any unnecessary effort.

Heavy-Duty Quality and Style

Made with the highest quality materials, the Truck Hardware Sierra HD Finishing Caps are designed to withstand tough environments while preserving their original look. These caps not only offer the practical benefit of eliminating the need for factory splash guards but also add to the overall aesthetic appeal of your truck. Designed to align perfectly with the vehicle's body, the finishing caps deliver an elevated, cohesive look, making them a must-have for truck enthusiasts who want to keep their vehicle looking pristine.

Key Features

  • Maintains OEM Appearance: Completes the fender flare when OEM protectors are removed, ensuring a seamless and factory-finished look.
  • Mud Flap Compatibility: Designed to allow for the easy installation of Truck Hardware Gatorback mud flaps, offering a great combination of form and function.
  • No-Drill Installation: No need for drilling, making installation easy and straightforward.
  • Custom Fit for Sierra 2500/3500HD: Specifically engineered for the 2020-2026 GMC Sierra 2500/3500HD, ensuring an ideal fit.

Product Care & Maintenance

To maintain the appearance and longevity of the finishing caps, simply clean them regularly with a mild soap and water solution. Avoid abrasive materials or harsh chemicals that could damage the surface. Rinse thoroughly and allow the caps to air dry for the best results. Routine care will help preserve their quality and ensure that they continue to look great on your truck.

Terms

  • OEM (Original Equipment Manufacturer): Parts produced by the original manufacturer of the vehicle, ensuring that replacement parts maintain the quality and compatibility expected from the brand.
  • Mud Flap Delete: Refers to the process of removing factory-installed splash guards or mud flaps, often to install higher-quality aftermarket solutions.
  • Fender Flare: A trim piece that surrounds the wheel well, providing extra coverage and protecting the vehicle from debris kicked up by the tires.
  • Finishing Caps: Custom-made caps designed to complete the look of a fender flare when certain parts, such as mud guards, are removed.

Warranty

Truck Hardware Sierra HD Finishing Caps are backed by a limited warranty, ensuring their quality and durability over time. The warranty covers material defects for the original owner, providing you with peace of mind and confidence in the product. However, the warranty does not cover damage resulting from misuse, abuse, or improper installation.

What’s Included

  • Six Truck Hardware Sierra HD Finishing Caps (Front Wheels, Front of Rear Wheels, Back of Rear Wheels)

For GMC Sierra HD owners who want to remove the OEM protectors without sacrificing style or finish, the Truck Hardware Sierra HD Finishing Caps are an essential accessory. Designed for effortless installation, these caps offer a clean, cohesive look while also enhancing compatibility with Gatorback mud flaps. Choose Truck Hardware Sierra HD Finishing Caps for a refined, finished look that will keep your truck looking its best.

Brand Gatorback by Truck Hardware
Length 6 inch(es)
Width 8 inch(es)
Height 4 inch(es)
Weight 4 lb(s)
UPC 785212958164

  • 2026 GMC Sierra 2500 HD
  • 2026 GMC Sierra 3500 HD
  • 2025 GMC Sierra 2500 HD
  • 2025 GMC Sierra 3500 HD
  • 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