Talk to a Sierra 3500 Sales Tech
1-888-706-1096
M-F 8:30A-11P, Sat-Sun 8:30A-9P
$20,000 Prize Drawing! Enter Now>

Find Bed Covers & Tonneau Covers for your Sierra 3500

Extang Trifecta ALX Tri-Fold Tonneau Cover (20-25 Sierra 3500 HD)Find parts that fit my vehicle

Item SHG20567
$0.00
Want $10? Write one of the first 5 reviews 4.4 Extang Exterior product ratings
Our Price

$549.99 - $599.99

Ship to: 43215
Please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.

Will this fit your Vehicle?

Select a different vehicle Help?
Update or Change Vehicle
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

      Product Information

      Features, Description, Q&A, Specs & Installation

      Features & Specs

      • Extang Trifecta ALX Tri-Fold Tonneau Cover
      • Enhances Security and Protection
      • Allows for Easy One-Handed Operation
      • Offers a Low-Profile Appearance
      • Features an Auto-Latching Secure Rotary Release Latching System
      • Utilizes Dual-Pivot Max-Hinges
      • Includes Exclusive Snap-On, Triple-Fin Seals to Guard Against Inclement Weather
      • Allows for 2/3 Bed Access When Open
      • Integrated Buckle Straps Secure the Cover Open While Driving
      • Built with an Aircraft-Grade Aluminum Frame with Textured-Black Endura-Coat Finish
      • Topped with a Marine-Grade Vinyl Tarp
      • Features a Stylish and Unique Pebble-Grained Ancona Finish
      • No Cutting, Drilling, or Modifying Required
      • Quick and Easy Installation
      • Backed by a Limited Lifetime Warranty
      • Fits 2020-2025 GMC Sierra 3500 HD Models

      Description

      Advanced Security and Weather Protection. The Extang Trifecta ALX Tri-Fold Tonneau Cover is designed to enhance the security and protection of your truck bed and its contents. It features an innovative auto-latching rotary release system and snap-on triple-fin seals, ensuring your cargo stays safe and protected from inclement weather while on the road.

      Construction and Appearance. Built with an aircraft-grade aluminum frame coated in a textured-black Endura-Coat finish, this cover combines strength and style. The marine-grade vinyl tarp boasts a unique pebble-grained Ancona finish, offering a sleek and modern aesthetic that complements your vehicle’s design.

      Installation. The Extang Trifecta ALX is quick and easy to install, requiring no cutting, drilling, or modifications. The simple process allows for a secure fit in minutes.

      Warranty. Backed by a limited lifetime warranty, this cover ensures long-lasting reliability and performance.

      Application. This Extang Trifecta ALX Tri-Fold Tonneau Cover fits 2020-2025 GMC Sierra 3500 HD models.

      Fitment:

      Details

      Extang 90658

      90653

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Installation & What's in the Box

      Installation Info

      Installation Time

      (approx) 1 Hour

      Difficulty Level:

      Simple installation for anyone.

      Installation Guides

        No guide available for this part yet.

      What's in the Box

      • (1) Tonneau Cover
      4.4

      Reviews of Extang Exterior Products (101)

      Brand Image

      Reviews of Extang Exterior products have an average rating of 4.4 out of 5

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Sierra 3500

      • 6.6L V8 - 20, 21, 22, 23, 24, 25
      • 6.6L V8 Duramax - 20, 21, 22, 23, 24, 25