what is the part called for the oil filter adapter

Engine Oil Leak From Oil Filter Adapter on Dodge Caravan. 2.4L 4 Cylinder, 3.1L V6, 3.3L V6....6 model years affected: 2000, 2001, 2002, 2003, 2004, 2006... An oil leak from the oil filter adapter may be evident. Dodge has made a revised oil filter adapter and is available.