Solas Amita 3 Propeler: PVC SX Cobra, Volvo Penta SX Units – Aluminum (8611-142-23) Traditional rubber hub. Aluminum propeller with three blades. Exclusive Solas casting process. Wide blade design specifically for 4-stroke engines Excellent acceleration and high speed. Item description: 14 x 9.1 inches. Manufacturer part number: 8611-142-23.