GMC Sierra 3500 HD Bed Cover - Undercover - SE Smooth - Gray - `15-`19
GMC Sierra 3500 HD Bed Cover - Undercover - SE Smooth - Gray - `15-`19
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GMC Sierra 3500 HD Bed Cover - UnderCover SE Smooth - Gray (2015–2019). A hard, low-profile tonneau with a smooth gray, ready-to-paint surface that lets you match your truck’s finish on the standard 6' 6" bed.
Built around UnderCover’s proven design, this cover is lightweight, durable, and simple to install and remove when you need full bed access. A full-perimeter seal helps keep out the elements, twist locks help secure cargo, and the included LED cargo light aids after-dark loading. Fits 2015–2019 GMC Sierra 3500 HD with the 6' 6" bed; also compatible with 2500 HD in the same years. Please verify model year and bed length before ordering.
Features
- Smooth gray paintable finish; typically painted prior to installation for color-match
- Full-perimeter seal for weather protection
- Weatherproof twist locks
- Included LED cargo light
- Quick, no-tool removal for full bed access
- Styled ribs, soft corners, contour edges, subtle spoiler
- Low-profile fit
Ready to customize your Sierra’s bed with dependable protection and a clean foundation for paint? Call our Austin, TX shop at 512-982-9393 or our Los Angeles area shop at 562-981-6800. We offer installation and customization services at both locations.
If you plan to purchase multiple items, contact us for potential shipping discounts.
We install on premises at both locations.
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Need Assistance?
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Call us at 512-982-9393 (Austin, TX) or
562-981-6800 (Signal Hill, CA)
and get assistance from one of our sales team members!
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