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This is an internal filter located inside the Vapor Separator Tank (VST)
used for both draining and filling gear oil in lower units
offering excellent durability and corrosion resistance
This part is a direct replacement for Volvo Penta 3853857 / 0985617 / 0778126
superseded version of the original 16100-ZW6-716
Lower Unit Gasket Seal Kit – Fits Mercury/Mariner 25-30HP (Replaces 27-8M0089639, 95220A1) 200-420HP This is an internal filterProduct Details This Lower Unit Gasket Seal Kit is designed for Mercury Mariner 2 stroke outboard engines, specifically covering 25 HP, 30 HP, and 25 Jet models manufactured between 1984 and 1991. It provides all the necessary components to reseal the gearcase, preventing water intrusion and oil leaks. It serves as a direct aftermarket replacement for Mercury part numbers 27 8M0089639, 95220A1, 804908A01, and 27 8M0089636, and is equivalent to Yamaha
