Peterbilt 388 Fan Blades & Shrouds: Quality Replacement Parts for Optimal Performance The Peterbilt 388 is a popular semi-truck model known for its durability and versatility. Keeping the fan blades and shrouds in top condition is crucial for maintaining optimal airflow and cooling performance. Our selection of BESTfit fan blades and shrouds provides a direct replacement for Peterbilt 388 and 389 models, as well as Kenworth W900 trucks. These high-quality parts ensure seamless fitment and reliable performance, helping to keep your semi-truck running at peak efficiency. Whether you need a replacement fan shroud or 30-inch diameter, 9-blade fan blades, we have the parts you need to get the job done right.