The Excel EM69050 Mack 2104-2108751X Center Bearing is a new old stock (NOS) replacement part designed to fit Mack and Freightliner vehicles. This high-quality bearing is manufactured by Excel, ensuring durability and reliability for your vehicle's driveshaft. Perfect for those in need of a center bearing for their Mack or Freightliner truck, this product is a valuable addition to any auto parts collection.