Oil Pump

Apply ATF to oil pump assembly, and then install it to oil pump housing.
Install the O-ring to oil pump cover.
Install the oil pump housing to the oil pump cover.
Tightening torque:

10 N.m (1.0 kgf-m, 7.4 ft-lb)

Fig 1: Identifying Oil Pump Housing Mounting Bolts
Courtesy of SUBARU OF AMERICA, INC.