Granite Door Window Deflectors For Granite models. Add to wishlist Part # : 3281-MSSG024 Categories: Bug / Hood / Window Deflectors, Mack Tag: class 8 ❮ ❯ Product Information Product Information Door window deflectors designed for Mack Granite models. The door window deflectors help to reduce cab air turbulence. Sold in pairs, measures 23″ long. For ordering or pricing information, please visit your local dealership. II3M-2