Mercury Mariner 4 and 5HP 4-Stroke Outboards Service Shop Manual 1999, Page 133Get this manual
CYLINDER BLOCK AND CRANKCASE
REFNO 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32-
QTY1 SCREW (M5 16 mm)
OESCRIPTION STOPPERClamp
TUBING SEAL SCREW (M5 16 mm) WASHER STRAINER HOUSING STRAINER CUP
OOWELPIN OIL PRESSURE SWITC 70 8
LEAD WIRE GROMMET EXHAUST PLATE GASKET OIL PAN