Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 139Get this manual
Oil Filter Assembly 1If removed, install oil filter assembly as shownb c
Oil Filter Housing Oil Filter O-ring Seal (2) Flat Washer Bolt 1.97 in(50 mm) Long Bolt 1.18 in(30 mm) Long
Oil Filter Housing Bolt Torque 70 lbin(8 Nm)