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

Part #:
FC004K
Sale Price
$408.60
$454.00
Free Shipping
In Stock Ships by Monday

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 overwhelmingly positive: reviewers say SharpTruck finishing caps/mud flap delete kits fit well, install easily (often without cutting/drilling), look OEM, and help improve tire clearance and aesthetics; a minority report imperfect alignment/gaps, continued rubbing for some tire setups, and concerns about price and paint/material durability.

What Customers Liked

  • Frequently described as “fits perfectly/like a glove/factory piece,” matches fender flare lines and texture, cleans up wheel-well/fender lines, and looks far better than stock mud flaps/splash guards.
  • Quick install (often 15–60 minutes for all pieces) with simple hand tools; many installed without removing tires; instructions and install videos praised; uses factory mounting points/hardware in many cases.
  • Major selling point versus competitors: typically no drilling, no additional holes, and no cutting into the truck’s metal; avoids “hacking” factory guards.
  • Many report reduced or eliminated rubbing after leveling/lift and larger tires (commonly 35–37"), improved clearance at full lock, and better compatibility with aftermarket wheel/tire setups (some still needed minor trimming).
  • Often called heavy-duty/solid, better than expected or better than OEM, good fit-and-finish; texture/black trim match noted; packaging praised (individually wrapped).
  • Fast shipping (often within days/under a week), good packaging, responsive support, and occasional handwritten thank-you noted.
  • Viewed as a “must-have” when installing aftermarket mud flaps (e.g., Gatorback) and for deleting factory splash guards cleanly.

Things to Consider

  • Some report gaps, misalignment (especially fronts or rears on certain trucks), holes not lining up exactly, or needing adjustment; occasional suggestion that front pieces could be improved.
  • Not a guaranteed fix for every wheel/tire/lift combination; some users still experienced rubbing on full lock or needed additional trimming despite installing the caps.
  • Multiple mentions that parts are white/clear plastic with a black textured coating/paint; scuffs/chips can reveal white underneath; some wish they were molded in black or painted inside edges/seams.
  • Common complaint that they’re pricey/overpriced for plastic; some compare favorably to more expensive brands but still feel cost is high.
  • A few notes about needing extra bolts/screws for certain factory configurations, tricky access on rear flaps, difficult clips/tabs to remove without breaking, and one report of long-term hardware/locking nut failure/corrosion after reuse.
  • Some wish kits included all 6 locations by default or that additional caps (e.g., in front of rear wheels) were included/available in smaller pairs; some ordered the wrong kit size and needed more pieces.
  • A few users noted the match is close but not perfect on close inspection or not an exact color match to their trim.
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