Mercury Mariner Outboard 225 3 Litre Service Manual 1994, Page 219Get this manual
Gear Housing Components 1Gear Housing
3Fill Plug
5Vent P1ug
6Dowel PinRoller BearingSpeedometer FittingDrive Shaft 10 Shim 11Bearing and Cup 12- Nut 13- Pinion Gear 14- Washer
16- Face Plate
17- Garrier 18- Oil Seal 19- Oil Seal
20- D-Ring
21Pump Housing 22- Gasket
23- Gasket 24- Screw
Impeller Key Coupling O-Rings Shift Shah Bushing Assembly Oil Seal O-Rings 33- Screw 34- Filler Block 35 Upper Drive Shaft 252627282930 31 32-
36- Coupler
37- Coupler 38- Rubber Washer