For Replacement of Yamaha 6E5-44352-00-00, 6E0-44352-01, 115-250 HP Horsepower Water Pump Impeller. Sierra P/N: 18-3073 CEF P/N: 500371 Package includes: 1 X LucaSng Neoprene Impeller 115-250 HP Horsepower. Impeller weight: Apprx. 70 g Number of Blades: 6 External Impeller Overall Diameter: 89.00 MM / 3.50 inch Internal Shaft Insert Diameter: 22.80 MM / 0.90 inch Application: (1) All V4-V6 outboard motors from 1984 and up. (2) Fit Yamaha 2-stroke outboard motors: 100A, 115B, 115C, 130B, 150A, 150F, 175D, 200A, 200F, 200G, 225D, 225G, 250A, 250B & 250G (3) Fit Yamaha 4-stroke outboard motors:F100B, F115A, F150A, F200C, F225A, F225B, F225C, F250A & F250B.