The Freightliner And Thomas 2004 Through 2015 Heavy Duty Climate Control Module is a reliable and practical solution for your HVAC needs. With its direct replacement feature, this module matches the appearance and function of the original unit on specified vehicles. It has undergone functionality testing to ensure the same operation as the stock module. Installation is a breeze, requiring no advanced vehicle knowledge. Designed to fit most Freightliner and Thomas models from 2002 to 2020, including M2 100, M2 106, M2 112, and Saf-T-Liner, this module is a direct OE replacement. OE replacement numbers include A22-57054-001, A2257054003, A22-57054-004, A22-57054-005, A22-57054-006, and A2257054007.