The UnderCover Ultra Flex hard-folding tonneau cover, part number undUX32004, provides durable bed protection, dependable security, and full cargo access for select Dodge Ram and Ram 1500, 2500, and 3500 models with a 6-foot 4-inch bed, Quad Cab or Mega Cab configuration, and no RamBox. Designed for the 2002–2018 Ram 1500 and 2003–2024 Ram 2500/3500, this cover also fits the 2019–2023 Classic Body Style Ram 1500. Verify your truck’s body style before ordering, especially for 2019–2021 Ram 1500 models.
The cover combines a premium-grade matte black aluminum surface with a high-density polymer core for a strong, low-profile construction that sits nearly flush with the bed rails. Its exclusive soft-impact underside helps protect shifting cargo, while carpeted underpanels provide a finished OEM-style appearance. Upgraded seals, tight-fit clamps, and a dual-action tailgate seal help keep water, dust, and debris out during everyday driving and severe weather. The cover has been tested in temperatures from -40 to 180 degrees Fahrenheit, humidity levels up to 95 percent, and through 7,500 hours of durability testing.
Security and access are built into the Ultra Flex design. The patented rail and clamp system uses automatic slam latches to secure each panel when the cover is closed. When folded toward the cab, the cover can be secured open for 100 percent bed access, allowing you to transport larger cargo without removing the cover. An integrated luminous bed rail light improves visibility in the bed, while the redesigned Tip-and-Click mounting system supports a straightforward, one-person installation in under 30 minutes without specialized tools.
Proudly assembled in Missouri and made in the USA, the UnderCover Ultra Flex is backed by a 5-year warranty supported by product experts and customer service based in the United States. Its durable construction, weather-resistant design, automatic latching panels, and refined matte black finish make it suitable for work trucks, daily drivers, and anyone who wants reliable protection for valuable cargo.
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