This cold weather essential reduces and redirects frigid cold air from flowing into the truck's grille while still allowing adequate air to flow to all areas of the cooling system. Helps maintain optimum engine operating temperatures in extremely cold conditions (below 40 °F). Heavy duty reinforced vinyl, UV resistant. Attaches easily to the front of the grill, snap mount. Made in the USA.  
Fits Freightliner Cascadia models 2007-2017.