The RetraxPRO MX retractable tonneau cover by Retrax delivers premium cargo protection, refined operation, and versatile bed access for select 2021–2027 Ford F-150 models, including the F-150 Lightning. Part number RTX80378 is designed for trucks with a 5.5-foot bed and no stake pockets. With more than one million units sold worldwide, this cover is engineered for drivers who need dependable security and everyday utility in demanding conditions.
Built with a double-wall aluminum slat surface, the RetraxPRO MX supports up to 500 pounds of evenly distributed weight. Its durable matte black powder-coated finish resists scratches and complements the truck’s exterior. CoreTrax sealed rollers provide smooth, consistent movement, while the key-lockable TraxLatch comfort handle allows the cover to lock in virtually any position along the bed. This flexible design helps secure cargo beneath the cover and between the cover and tailgate, while the cover can be opened or closed independently of the tailgate.
An integrated water management system helps channel moisture away from the cargo area through drain tubes, supporting dependable protection in wet weather. Specialty components are engineered to resist freezing and binding, with tested performance in temperatures from -40 to 180°F and humidity levels up to 95 percent. The reinforced storage canister and fortified end components add durability, while the ultra-secure construction helps improve theft resistance. The cover installs with clamp-on rails and requires no drilling or truck-bed modifications, making installation straightforward. Assembled in the USA, the RetraxPRO MX is backed by a limited lifetime warranty.
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