Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 393Get this manual
NON-BIGFOOT GEAR HOUSING
Water Pump Seals
NOTE: All gaskets, seals and a-rings should be replaced as normal repair procedure during gear case disassemblyNOTE: DO NOT use screwdriver to remove seals from carrier, as carrier may be damaged1Using suitable mandrel, press both seals from carrier
LocUte "271(92-809819)
aNeoprene Ribbed SealMetal Cased SealCarrierO-ring