Extang · New
Extang 20-21 Chevy/GMC Silverado/Sierra (8 ft) 2500HD/3500HD Trifecta ALX
MPN 90658 · Store SKU ext90658
Supplier stock checked 11/7/2026, 12:21:17 PM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
The easiest truck bed cover just got easier. The Trifecta ALX packs the same great features as Extangâ??s best-selling tri-fold cover, the Trifecta 2.0, but with a Secure Rotary Release Latching System at the tailgate and an automatic latching feature thatâ??ll make getting the goods in and out of your truck bed that much faster. Trifecta ALX Tonneau Cover; Black; Leather Grained Fabric; 2020-2026 Chevy Silverado/GMC Sierra 2500 HD/3500 HD 8ft. Bed without Factory Side Storage Boxes Trifecta ALX Tonneau Cover; Black; Leather Grained Fabric; 2020-2026 Chevy Silverado/GMC Sierra 2500 HD/3500 HD 8' Bed without Factory Side Storage Boxes Trifecta ALX - 20-26 Silv/Sierra 2500HD/3500HD 8' w/out Factory Side Storage Trifecta ALX-20-26 Silv/Sierra 2500HD/3500HD 8ft. w/out Factory Side Storage
Manufacturer fitment & guides
Check 90658 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y