The Peterbilt 357/378 Fan Blades & Shrouds product lineup offers a wide selection of high-quality replacement parts to keep your Peterbilt truck running smoothly. Whether you need a new fiberglass fan shroud, 32-inch engine fan blade, or air conditioning idler pulley, this product lineup has you covered. These parts are designed to be direct replacements for popular Peterbilt 357, 378, and 379 models, ensuring a seamless fit and easy installation. Upgrade your Peterbilt's cooling system with durable, reliable components from reputable brands like BESTfit. Improve airflow, reduce engine strain, and maintain optimal operating temperatures for your Peterbilt truck with the fan blades and shrouds in this product lineup.