Number of Blades: 6, Net Weight: 38g Brass Hub, Height: 12.87mm(1/2") Internal Shaft Insert Diameter: 13.99mm(35/64") External Impeller Overall Diameter: 69.18mm(2 23/32") Can't just rely on horsepower to judge, please check the dimension with your old one carefully, if you still can't confirm that, please consult us.

Descriptions:

This Aftermarket Impeller can replace Johnson / Evinrude / OMC / BRP Outboard Motor water pump part: 18-3003 377178 775519 777833 0377178 0775519 077833;

fits Sierra 18-3003

Applications(fits Evinrude Johnson outboard motors ):

9.5 HP 1964-1973

10 HP 1958-1963