The Peterbilt 579 12 Inch Seat Base Adapter is a practical and durable solution for fitting Seats Inc. Legacy Lo Seats built after July 1st, 2018 onto most Peterbilt 579 models. Available in a sleek gloss black finish, this adapter is also offered in chrome or billet aluminum, providing options to suit different preferences. Sold individually, this 12-inch adapter is a versatile and convenient addition to your truck's seating setup, ensuring a secure and comfortable fit for your Seats Inc. Legacy Lo Seats.