Protect truck-bed cargo with the Roll-N-Lock M-Series Retractable Tonneau Cover, part number rnlLG449M. Designed for select 2009–2018 Dodge Ram 1500 and 2019–2023 Ram 1500 Classic models, as well as 2010–2025 Ram 2500 and 3500 trucks with 8-foot beds, this locking bed cover combines convenient operation with dependable cargo security. It is not compatible with trucks equipped with RamBox.
The M-Series cover retracts and closes in seconds without snaps, fabric bundles, crossbars, or loose components to store. Its marine-grade vinyl-over-aluminum slat construction provides a rigid, finished surface, while the low-profile aerodynamic housing helps maintain a clean appearance. The compact aluminum housing includes a Cargo Shield to preserve usable bed space, making it practical for everyday hauling and larger cargo loads.
Opening and closing are made easier by the heavy-duty torsion spring drive system, and multiple latching positions help accommodate different cargo arrangements. The integrated AutoLock™ system and patented tailgate locking function provide added security when the cover is closed. A flush handle with a finger-insulator grip supports comfortable operation, while the clamp-on installation design helps simplify mounting without extensive modifications.
Features include a compact retractable housing, aluminum slat construction, integrated tailgate locking, and a low-profile design suitable for daily driving. The Roll-N-Lock M-Series is backed by a 3-year limited warranty. Verify truck year, model, bed configuration, and RamBox compatibility before ordering.
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