as well as a wide range of Mercury/Mercruiser 25–60HP 4-stroke carbureted engines
which can lead to hydrolock
it is recommended to replace the water pump impeller and gaskets every 1 to 2 years or every 100-200 hours of operation
Cycle the trim system up and down several times to bleed any trapped air from the lines
and an external pulse hose
Water Pump Impeller – Fits Chrysler Force 75-140 HP Outboards (Replaces 47-F523065-1, 47-803630T) 25hp as well as a wideProduct Details This high performance Water Pump Impeller Fits Chrysler Force 75 140 HP Outboards ensures reliable cooling for Chrysler Force 75, 85, 90, 100, 105, 115, 120, 125, 135, and 140 HP 2 stroke outboard models manufactured between 1977 and 1989. It serves as a direct interchange for Chrysler Force part numbers 47 F523065 1 and 47 F523065B 1, Mercury Mariner 47 803630T, and aftermarket equivalents including Sierra 18 3030 and Mallory 9 45001.