ATDynamics says its new RollTail, rear-mounted aerodynamic fairing is the first commercially available tail fairing specifically designed for trailers with roll doors.
Previous TrailerTail designs have been for swing-door design trailers.
The new RollTail is a DOT-compliant, spring-actuated fairing that can be installed by two technicians in as little as 45 minutes. The unit requires no driver interaction when backing into a loading dock as the unit retracts and deploys automatically when the vehicle pulls away.
The company says the RollTail will improve tractor-trailer fuel economy by 4 to 5 percent, and has been validated by SAE Type II fuel economy testing. The product weighs approximately 160 pounds and will retail for $1,599.00.
Affected trucks include model year 2008-2018 Freightliner Cascadia and Western Star 4700, 4900, 5700 and 6900 trucks. DTNA says after hard brake applications, the brake light pressure switch may not activate the brake lights with the light application of the brake pedal.