Drain Screw Seals  used with the 3/8-16 drain fill screw found on all Mercury, Mercruiser and most Mercury/Mariner outboards except Verado and those of Japanese origin. (same seal used with 10-79953K04)

Gear Lube Drain screw with gasket for most Mercury lower units.  (Also used as vent screw in 1963 and newer 35HP and larger non-racing gear cases.)

Was 10-79953T2

This is used as both drain & vent on 1974 & prior models.  1975-76 use this for vent screw and 22-67892A06 magnetic drain screw.

Mercury High Performance Gear Lube+ for use in gear housings of Mercruiser sterndrives and all Mercury, Mariner, and Force outboards.  8 oz.

Gear Lube Pump for quart size gear lube.  Fits all Merc outboards except those of Japanese origin.


Was 91-802891K2

Mercury Premium Gear Lube for use in gear housings of all Mercury, Mariner, and Force outboards. 8 oz.

Gear Grease- 105 Lubriplate replaces original gear grease in all 1, 2, & 4 cyl. Mercurys through 1961. This heavier lube should also be used in non-shift motors of other brands. 10 oz.

Note: Modern 90 weight gear lube is generally unacceptable in these engines.

Grease Gun


Was 91-30500A5

Mercury High Performance Gear Lube+ for use in gear housings of Mercruiser sterndrives and all Mercury, Mariner, and Force outboards.  32 oz.