Water Pump Impeller Kit – Fits Mercury/Mariner 40-300 HP & Alpha One Gen II (Replaces 47-43026Q06, 8M0100526) 25-300HP Place a drain pan under

Place a drain pan under the lower unit and remove the gearcase drain screw to empty the gear oil

Replace the housing cover and secure it with the clips

It means that 3889124 is the newer

Bravo I II III (Replaces 91-78310) is engineered for removing and installing hinge pins from the bell housing on most Mercury MerCruiser sterndrive units

Water Pump Impeller Kit – Fits Mercury/Mariner 40-300 HP & Alpha One Gen II (Replaces 47-43026Q06, 8M0100526) 25-300HP Place a drain pan underProduct Details This aftermarket Water Pump Impeller Kit provides a reliable solution for servicing Mercury Mariner 40 300 HP 2 stroke and 4 stroke outboards, MerCruiser Alpha One Gen II sterndrives (serial number D494569 and above), and select 19961998 Honda BF70 BF90 outboards. It serves as a direct interchange for multiple part numbers, including Mercury 47 43026Q06, 47 43026T11, 8M0100526, Honda 19021 ZW1 003, Sierra 18 3214, 18 3265, and GLM