covering a range from 5
most marine mechanics recommend replacing the water pump impeller every 1–2 years or every 100–200 hours of operation
More frequent replacement may be necessary if you operate primarily in saltwater or in water with high levels of sand or silt
Disassemble the lower unit as required to access the old seals and gaskets (e
particularly in rough conditions
Water Pump Impeller Kit with Housing – Fits Mercury/Mariner 30-70 HP (Replaces 47-89983, 47-89983T) 121HP covering a range from 5Product Details This complete Water Pump Impeller Kit with Housing Fits Mercury Mariner 30 70 HP (Replaces 47 89983, 47 89983T) is designed for a wide range of Mercury Mariner 2 stroke and 4 stroke outboard engines from 30 to 70 HP. It covers various models including 35, 40, 45, 50, 60, and 65 HP manufactured from the 1970s through the 1990s. It serves as a direct replacement for Mercury part numbers 47 89983, 47 89983T, and 47 89983Q1, and is