Subaru 2009 IMPREZA Service Manual page 1944

AUTOMATIC TRANSMISSION
C: DISASSEMBLY
1. OIL PUMP COVER
1) Remove the four seal rings.
(A)
(A) Seal ring
2) Remove attachment bolts, then remove the oil
pump cover by lightly tapping the end of the stator
shaft.
(A)
(A) Oil pump cover
(B) Oil pump housing
3) Remove the oil pump inner rotor and outer rotor.
(A)
(A) Inner rotor
(B) Outer rotor
Oil Pump Housing
2. OIL SEAL RETAINER
1) Remove the oil seal retainer.
AT-00189
2) Remove the O-ring.
(B)
AT-00190
3) Remove the oil seal from the oil seal retainer.
(B)
AT-01036
4AT-88
(A) Oil seal retainer
(B) Drive pinion shaft
(A)
(A) O-ring
(A)
(A) Oil seal
(B) Oil seal retainer
(B)
(A)
AT-03598
AT-03361
(B)
AT-03360