Turbo O Ring of Garrett GTP38 T38 Turbo Oil Inlet Outlet for Powerstroke 7.3L Brand new turbo oil seal O-ring Fit with turbo: Garrett GTP38 TP38 turbo oil inlet and outlet Gasket part# : 403069-0166 403069-0167 Application: Ford F series trucks 7.3L Powerstroke 7.3L 4 pcs O ring