Protect your truck bed with the UnderCover Ultra Flex hard-folding tonneau cover, part number undUX42017, designed for 2022-2026 Toyota Tundra models with a 5.5-foot bed. This low-profile cover features a premium-grade matte black aluminum surface and high-density polymer core for dependable strength, durability, and a clean appearance that sits nearly flush with the bed rails. It fits Toyota Tundra models with or without the Deck Rail System but will not fit trucks equipped with Trail Special Edition Bed Storage Boxes.
The patented rail and clamp system uses automatic slam latches to secure every panel when the cover is closed, helping protect cargo from theft, water, dust, and debris. Upgraded seals and tight-fit clamps improve weather resistance, while the exclusive soft-impact underside and carpeted underpanels help protect shifting cargo and provide a finished, original-equipment-style appearance. A dual-action tailgate seal supports smooth operation, and the integrated luminous bed rail light improves visibility when accessing the bed.
The Ultra Flex provides 100 percent bed access whenever needed. Fold the panels toward the cab and secure them in place for safe driving with the cover fully open, or close the panels to automatically reengage the latches. UnderCover’s redesigned Tip-and-Click mounting system enables a fast, one-person installation in under 30 minutes without special tools. The cover is engineered for demanding conditions, tested from -40 to 180 degrees Fahrenheit and in humidity levels up to 95 percent, with extended durability testing for dependable long-term use.
Proudly assembled in Missouri and made in the USA, the UnderCover Ultra Flex combines job-site durability with a refined matte black finish for daily driving. It is backed by a 5-year warranty supported by dedicated product experts and a USA-based customer service team.
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