Aluminum thermostat housing compatible with Explorer, Mountaineer, and Sport Trac models equipped with 4.0L V6 engines from 2002 to 2010.Also fits Mustang 4.0L V6 models from 2005 to 2010.This part serves as a direct replacement for the thermostat housing assembly.Interchangeable part numbers include 1L2Z 8255-AA, 2L2Z 8575-AA, 2L2Z 8592-AA, 2L2Z 8592-BA, 2L2Z 8592-BB, 3L8Z 12A648A, 902-860, RH148, RH158, 5R3Z-8592-BA, GL2Z 8592-A, and W702041S300.Includes one thermostat housing.