Sierra's 18-8900 Impeller is designed for use with Chrysler/Force 70 HP and 75 HP outboard engines. It is also designed for use with select Mercury 30 HP, 35 HP, 40 HP, 45 HP, 50 HP, 55 HP, and 60 HP outboard engines. Includes one impeller per package. It is interchangeable with Chrysler/Force/US Marine 47-19453; Mallory 9-45301 and 9-45301-10; and Mercury Marine 47-19453 and 47-19453T. Each Sierra product meets or exceeds the original equipment part it replaces. Fit specific, check part numbers to ensure proper fit.