Water Pump Impeller Kit – Fits Mercury/Mariner, Tohatsu 2.5 & 3.5 HP (Replaces 8M0181314, 47-161543, 369-65021-1, 309-65021-1) 525HP This flapper is designed for

This flapper is designed for any system with a 4-inch (101

including Sierra 18-3653

1 x Water Seal Damper (626-44365-01-00/626-44365-02-00)

Lightly lubricate the inside of the housing and the new impeller with marine grease

Water Pump Impeller Kit – Fits Mercury/Mariner, Tohatsu 2.5 & 3.5 HP (Replaces 8M0181314, 47-161543, 369-65021-1, 309-65021-1) 525HP This flapper is designed forProduct Details This Water Pump Impeller Kit is a direct fit replacement designed for Mercury Mariner and Tohatsu 2. 5 HP and 3. 5 HP 4 stroke outboard engines manufactured from 2006 onwards. For Mercury models, it is essential to confirm that your engine's serial number is 0R131842 or higher to ensure compatibility, as these are Tohatsu manufactured powerheads. It directly interchanges with Mercury part numbers 8M0181314 and 47 161543, as well as