Aluminum propellers are the most common propeller found on outboard and sterndrive engines because of their low cost. Aluminum propellers are easily repaired at about 30% the cost of a new boat propeller. Murphy's has one of the largest inventories of new and reconditioned aluminum propellers on the East Coast, at discount prices. Many of our customers get an aluminum propeller as a spare. Let us provide you with a new or replacement aluminum propeller.