GMC Sierra 3500 HD Tonneau Cover - Undercover - Ultra Flex - Matte Black - `15-`19
GMC Sierra 3500 HD Tonneau Cover - Undercover - Ultra Flex - Matte Black - `15-`19
Available Options
Drive now, Pay later with Affirm
or with PayPal
Both options will be available upon checkout.
GMC Sierra 3500 HD Tonneau Cover – UnderCover Ultra Flex, Matte Black (2015–2019). A hard, tri-fold aluminum cover built for daily use with a clean, low-profile look.
Fits 2015–2019 Sierra 3500 HD with the 8 ft bed. Ultra Flex blends strength and function: a dual-action tailgate seal lets you shut the tailgate with the cover open or closed; rigid aluminum panels fold forward for full bed access; perimeter seals help deter weather. Clamp-on L-Rails allow quick, no-drill installation and removal. Inside, carpeted under-panels and an integrated LED rail light add utility.
Features
- Hard tri-fold aluminum, matte black
- Dual-action tailgate seal
- Automatic latching; multiple open positions
- Low-profile design; full bed access
- Made in the USA; 5-year warranty
Questions or fitment help? Call us. We offer installation and customization in Austin, TX and the Los Angeles, CA area: 512-982-9393 (TX), 562-981-6800 (CA).
Buying multiple items? Ask about shipping discounts. We install on premises at both locations.
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Need Assistance?
We're here to help!
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!
Product ID Number: