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Extang eMax Tonno Soft Tri-Fold Tonneau Cover (20-23 Sierra 2500 HD w/ 6.90-Foot Standard Box & w/o Factory Side Storage)

Item HG1032
AmericanTrucks no longer carries the Extang eMax Tonno Soft Tri-Fold Tonneau Cover (20-23 Sierra 2500 HD w/ 6.90-Foot Standard Box & w/o Factory Side Storage). Please check out 2007-2014 GMC Sierra 2500 Bed Covers & Tonneau Covers for an updated selection.
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    Video Review & Installation

    Product Information

    Features, Description, Reviews, Q&A, Specs & Installation


    • To Learn How to Measure Your Bed Click Here
    • eMax Tonno Soft Tri-Fold Tonneau Cover
    • Designed to Allow Full Truck Bed Access
    • Features Secure Shut Latching System
    • Durable Aluminum Frame and Vinyl Skin
    • Comes With Straps for Holding Cover in Open Position
    • Designed for Simple Installation
    • Backed By Extang Lifetime Warranty
    • Made in the USA
    • Not Designed to be used with Factory Side Storage Models
    • Fits 2020-2023 GMC Sierra 2500 HD with Standard Box without Factory Side Storage


    Innovative Cargo Protection. Touted as the re-engineered version of the Trifecta, this Extang eMax Tonno Soft Tri-Fold Tonneau Cover offers the convenience of a tri-fold cover with the utility of a roll-up one. This bed cover is built with Extang’s patented SpeedKlamps, which are designed to make fastening and releasing easy. In addition, the cover is designed to seamlessly hug the bed of your GMC Sierra 2500 HD for a flush, clean appearance.

    Features Functional Design. The eMax Tonno includes impressive features, such as the quick-release support rods that provide strength to the cover so you can drive while it’s open. It also features the Secure Shut latch, which secures the prop rods and straps to hold the cover open in an upright position. This latch system is also designed to keep the bed secured to the truck bed and protect the cargo against weather elements.

    Boasts of a Durable Construction. This tonneau cover is made from high-quality aluminum frame and vinyl cover. Thus, it is guaranteed to protect the truck bed and anything you haul in it. What you get is reliable protection from the wind and rain, as well as from thieves’ prying eyes. The aluminum used in this construction is also lightweight, so mounting and opening the cover is fast and convenient.

    Designed for Easy Installation. This soft tonneau cover comes with the vinyl cover and folding frame completely preassembled. As such, the installation will not require any drilling and other modifications. You simply need to mount the base rails to the truck bed and link the cover portion to the base, and you’re done. All the necessary parts and hardware are included and the process will take only about an half an hour or less.

    Extang Lifetime Warranty Coverage. All bed covers from Extang carry a lifetime warranty against defective materials or workmanship on all truck bed cover rails, aluminum components, clamps, bows, hardware, and vinyl covering. The same coverage applies to the eMax Tonno. Check with the manufacturer for full warranty details.

    Application. This Extang eMax Tonno Soft Tri-Fold Tonneau Cover is designed to fit 2020-2023 GMC Sierra 2500 HD models equipped with the Standard Box without Factory Side Storage.

    Technical Note. Not sure of your bed size? Click here for an instructional video explaining how to measure your bed length.

    CA Residents: WARNING: Cancer and Reproductive Harm -

    Installation & What's in the Box

    Installation Info

    What's in the Box

    • (1) Vinyl Cover
    • (1) Frame Assembly
    • Mounting Hardware
    • Installation Manual

    Customer Reviews (6)

      Brand Image

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

        Questions & Answers

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