Mercury Mariner 25HP 4-Stroke Outboard Service Manual 1997, Page 152Get this manual
CRANKSHAFT REFNOQTY1 CRANKSHAFT KEY 11 12 13 14 15 16 17 18 KEY OIL SEAL OIL SEAL CON NECTING ROD BOLT BEARING (BROWN) BEARING (BLACK) BEARING (BLUE) PISTON (STANDARD) PISTON (.25 DIS) PISTON (.50 DIS) PISTON RING (TOP) (STANDARD) PISTON RING (TOP) (.25 DIS) PISTON RING (TOP) (.50 DIS) PISTON RING (2 NO (STANDARD) PISTON RING (2 NO (.25 DIS) PISTON RING (2 NO (.50 DIS) PISTON OIL RING PISTON PIN RETAINER BALANCE ROO PISTON NUT 116 9.7 13 150 12.5 TORQUE DESCRIPTION