New Aluminum Propellers for Mercury & Mariner Outboards

Discover high-quality EMP aluminum propellers from OB Parts, offering both fixed-hub and interchangeable-hub designs suited to a wide range of horsepower requirements—from 4-6 HP up to 300 HP. Choose from specific spline configurations like 10-spline, 13-spline, and 15-spline, as well as gearcase hub sizes including 4-1/4″ and 4-3/4″. Our collection also includes comprehensive hub kits and mounting hardware to ensure reliable performance and compatibility. Whether you're replacing a worn prop or upgrading for improved efficiency, OBParts has the marine prop solution you need.