GMC Sierra 3500 HD Tonneau Cover - Extang - Endure ALX - Matte black - `07-`14
GMC Sierra 3500 HD Tonneau Cover - Extang - Endure ALX - Matte black - `07-`14

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GMC Sierra 3500 HD Tonneau Cover - Extang - Endure ALX - Matte black - `07-`14. A low-profile, folding hard cover engineered for truck owners who want durable protection and quick bed access without adding bulk.
The Extang Endure ALX is built for function: four patented EnduraShield TPO-coated panels on lightweight aluminum frames create a rigid, impact-resistant assembly that resists scratches, dents and UV fading. Panels are approximately 1/2" thick and the design supports up to 500 lbs of evenly distributed weight. A matte black powder coat on the perimeter frame provides durable finish protection while extruded weather seals at each seam help keep water and debris out of the bed. The Extang-exclusive Secure Rotary Latch System allows one-handed, twist-and-lift operation and the cover folds up to the cab for full bed access when needed. A limited 5-year warranty covers the product.
Features
- Fits 2007–2014 GMC Sierra 3500 HD, 6'6" bed (without cargo management system)
- Four TPO-coated panels on aluminum frames
- Supports 500 lbs of evenly distributed weight
- Matte black textured powder coat finish on frame and hinges
- Extruded side weather seals for all-weather protection
- Extang Secure Rotary Latch System for one-handed operation
- Folds up to the cab for full bed access
- Limited 5-year warranty
If you have questions or want to confirm fitment, call us directly — we’re happy to help. We offer installation and customization services at two locations: Austin, Texas and the Los Angeles, California area. Call: 512-982-9393 (TX) or 562-981-6800 (CA). We install on premises at both locations. If you’re thinking about purchasing multiple items, contact us for possible shipping discounts.
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov



















































