Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 191Get this manual
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GEAR HOUSING
8 Mandrel (91-84536M) NLA
Quicksilver Lubricants and Service Aids
Part No92-13872A1 92-19007A24 92-34227-1 92-825407A12 Special Lubricant 101 Quicksilver G