Mercury Mariner 4 and 5HP 4-Stroke Outboards Service Shop Manual 1999, Page 133Get this manual
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CYLINDER BLOCK AND CRANKCASE
LEAD WIRE GROMMET EXHAUST PLATE GASKET OIL PAN
BOLT (M6 20 mm)
BOLT (M6 40 mm)
ROTOR-OUTER PIN ROTOR-INNER ORING COVER BOLT (M6 16 mm