The Peterbilt 579 12 Inch Seat Base Adapter is a practical and versatile solution for upgrading your Seats Inc. Legacy Lo seats built after July 1st, 2018. Available in chrome or billet aluminum, this adapter is designed to fit most Peterbilt 579 seats. With its Red Baron design, it adds a touch of style to your truck's interior. Easy to install and sold individually, this adapter offers convenience and functionality without compromising on quality. Upgrade your seating experience with the Peterbilt 579 12 Inch Seat Base Adapter.