Number of Blades: 6, Net Weight: 62g Brass Hub, Height: 21.79mm External Overall Diameter: 69.81mm Internal Shaft Insert Diameter: 15.91mm 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 new impeller replace Johnson Evinrude outboard motor part 377230 / 0377230 / 777213;

fits Sierra 18-3083,

Applications (fits Johnson Evinrude outboard motors ):

35hp 1958-59

40hp 1960-70

50hp 1971-78

55hp 1971-78