Wiper Arm Covers For the Rawhide model. Add to wishlist Part # : 3281-MSS131 Categories: Exterior Accessories, Mack Tag: class 8 ❮ ❯ Product Information Product Information Wiper arm covers for the Mack Rawhide model. Wiper arm covers add that stainless look to your wiper arms. Attaches using supplied 3M two-sided tape. Sold in pairs.