<p>This Mercury 10 3/8"x13" propeller 48-73136A40 48-73136A45 for 9.9HP 15HP 18 20 25HP is an industrial replacement part manufactured by Mercury. It's a replacement or spare part intended to restore proper function to the equipment it belongs to. Key specifications noted on this listing include 9.9HP. It is commonly in a range of industrial and manufacturing applications.</p>