The promotion announced the event on Wednesday. LFA 44 takes place at Comerica Theatre and will also see Casey Kenney face Roman Salazar at bantamweight in the co-main event. The card will be televised on AXS-TV at 10 p.m. ET/7 p.m. PT.
A native of Gold Coast, Australia, Frincu enters the matchup having won five of his last six appearances. Most recently, the 24-year-old Arizona Combat Sports product defeated Roman Alcantar via second-round TKO at LFA 31 on Jan. 19. Frincu owns a 12-3 career mark.
Aguilera, meanwhile, has defeated his last three foes via knockout or technical knockout, including a second-round stoppage of Ricardo Seixas at LFA 36 on March 23. The 26-year-old Californian is 11-4 as a pro, with nine victories via KO or TKO.