Peterbilt 389 Full Radius Fenders: Protection & Style Peterbilt 389 Full Radius Fenders provide full coverage to shield your truck from mud, debris, and road spray. Made from durable materials like fiberglass or polymer, they offer an additional barrier to roadside debris and improved aerodynamics. Available in various colors and finishes, including black, white, chrome, and diamond plate finish, these fenders allow for aftermarket customization to match your truck?s style. Their bolt-on or weld-on options make them easy to install. Perfect for upgrading or outfitting your Peterbilt 389, these fenders combine durability, style, and functionality, making them a top choice for truck owners and professionals.