The package was designed through analysis and testing to reduce vehicle drag by up to 24 percent, resulting in an estimated $5,600 in savings annually (130,000 miles, $2.30/gal) versus a comparable Peterbilt Model 386 or 384 without the Aerodynamic Package. Benefits were validated by the company with computational fluid dynamics studies, wind tunnel testing and on-track drag metering.
The package includes:
• Roof Fairing and Trim Tabs - Proprietary roof fairings with trim tabs to help push air up and over the cab and trailer to reduce drag and improve fuel economy.
• New Sleeper Roof Transition - Enhanced design provides a smooth transition between the cab and sleeper roof lines.
• Enhanced Chassis Fairings - The new chassis fairings have been re-contoured at the end to feature a "flair" design element which redirects air flow around the rear tires and wheels.
• Aero Battery Box/Toolbox - Optimized to provide better airflow under the cab for improved aerodynamics.
• Composite Sunvisor - A new composite sunvisor provides less aerodynamic drag and maximized glare protection.
• Sleeper Extender - A new sleeper extender features a 3-inch rubber extender flair to redirect airflow outward and around the trailer.
• Aerodynamic Mirrors - The mirrors include a tough, lightweight, 4-way adjustability providing both vertical and horizontal adjustments, an integral convex mirror and fully heated primary and convex mirrors.
Peterbilt's Aerodynamic Package equipped Models 386 and 384 feature a sleek appearance, with enhanced aerodynamic characteristics. Peterbilt's Aerodynamic Package will also be available from Paccar Parts for Model 386 and 384 retrofit.
More info: www.peterbilt.com